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Cell Structure and Functions - Part 1

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audrey

12/1/2025

Biology

Cell Struction - pt 1

52

Dec 1, 2025

7 pages

Cell Structure and Functions - Part 1

user profile picture

audrey

@kjlledher

Cell membranes are the protective barriers that surround all living... Show more

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1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Cell Membranes and Key Terms

Ever wonder how cells keep themselves separate from the outside world? Cell membranes are the answer! These important structures serve as barriers that protect cells from the external environment while selectively allowing certain molecules to pass through.

The cell membrane consists of a lipid bilayer (a double layer of fat cells) with membrane proteins embedded throughout. This structure creates a flexible but secure boundary around the cell.

Transport across membranes happens in two main ways: passive transport requires no energy and follows the natural concentration gradient, while active transport uses energy to move molecules against their concentration gradient.

Quick Fact: The cell membrane isn't just a static wall - it's a dynamic structure where proteins can move around within the lipid bilayer, almost like boats floating in a sea of fat molecules!

Special proteins help molecules cross the membrane: channel proteins create tunnels for passive transport, while carrier proteins change shape to actively move specific molecules across. Other important membrane components include transmembrane proteins that span the entire membrane and peripheral proteins that attach to its surface.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

The Lipid Bilayer Structure

The lipid bilayer is the foundation of all cell membranes - think of it as the cell's security fence! This structure is incredibly thin (only about five nanometers thick) but provides the essential barrier between the cell's interior and the outside world.

What makes the lipid bilayer so special is its unique structure. Each lipid molecule has two distinct parts: a hydrophilic head waterlovingwater-loving and a hydrophobic tail waterfearingwater-fearing. These lipids are called amphipathic molecules because they contain both polar and nonpolar regions.

Phospholipids are the most common lipids in cell membranes. They have a phosphate-containing head and two fatty acid chains forming the tail. One of these chains typically has a kink due to a double bond, which affects how tightly the lipids can pack together.

Remember This: The lipid bilayer forms spontaneously - the hydrophobic tails naturally face inward (away from water), while the hydrophilic heads face outward (toward water). No energy is required for this organization!

The bilayer's most important property is its impermeability - it blocks most molecules from freely passing through, with exceptions for water and gases. Another key feature is fluidity, allowing lipids and proteins to move within the membrane, which is crucial for many cellular functions.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Properties of the Lipid Bilayer

The lipid bilayer is much more than just a static barrier - it's a dynamic structure with properties that make it perfect for its role! Its impermeability is crucial, preventing random molecules from entering or exiting the cell without proper regulation.

Only water molecules and small gases like oxygen and carbon dioxide can easily pass through the lipid bilayer without assistance. Larger molecules and ions require special transport proteins to cross the membrane - this selectivity is what gives cells control over their internal environment.

The fluidity of the membrane is another game-changing property. The lipids and proteins aren't locked in place - they can move around within their layer. This movement is essential for many cellular processes and can be affected by temperature (colder temperatures decrease fluidity) and the structure of the fatty acid chains.

Did You Know? The lipid bilayer is asymmetrical - the composition of lipids and proteins in the outer layer differs from the inner layer. This asymmetry is important for cell function!

This fluid nature allows membrane proteins to interact with each other, move to specific locations when needed, and change their distribution in response to cellular signals. Without this fluidity, many cellular processes would be impossible.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Membrane Proteins

While the lipid bilayer provides the basic structure of the cell membrane, it's the proteins within it that do most of the exciting work! Membrane proteins are responsible for cell communication, transport of materials, and many other vital functions.

These proteins can move around within the lipid bilayer like boats floating on water. There are three main types: integral proteins, peripheral proteins, and lipid-bound proteins.

Integral proteins are embedded within the bilayer and can't be easily removed without destroying the membrane. Many integral proteins are transmembrane proteins, meaning they extend through the entire membrane with portions exposed to both the inside and outside of the cell. The parts of these proteins within the membrane are hydrophobic, while the exposed ends are hydrophilic.

Pro Tip: When studying membrane proteins, remember that their location determines their function. Transmembrane proteins are the only ones that can perform functions both inside and outside the cell simultaneously!

Transmembrane proteins can cross the membrane once (single-pass proteins) or multiple times (multi-pass proteins). When crossing the membrane, these proteins form an alpha-helical configuration in their hydrophobic regions, which allows them to exist comfortably within the fatty environment of the bilayer.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

More Membrane Proteins and Cell Surface

Peripheral proteins are different from integral proteins because they're attached only to the surface of the membrane. You can remove them easily without damaging the lipid bilayer. These proteins tend to be less mobile than integral proteins and often function in cell signaling or structural support.

Lipid-bound proteins are the third type and are found entirely within the boundaries of the lipid bilayer. These proteins often play roles in membrane stability and organization.

On the outer surface of many cell membranes is a layer called the glycocalyx, made up of carbohydrate chains. Think of it as the cell's protective coat! This layer varies in composition between different types of cells and provides protection against physical and chemical damage.

Cool Connection: The glycocalyx is only found on cells of higher organisms, not on simpler life forms. It's like an evolutionary upgrade to the basic cell membrane design!

The complete cell membrane is incredibly complex, with the phospholipid bilayer serving as the foundation, proteins embedded throughout providing functionality, and the glycocalyx coating the exterior surface. All these components work together to maintain cell integrity while allowing necessary interactions with the environment.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Membrane Transport

How do cells get what they need when the membrane blocks most things? They use special transport systems! The lipid bilayer is great at keeping unwanted substances out, but cells need ways to move important molecules like sugars, amino acids, and ions across this barrier.

There are two main types of transport across membranes: passive transport and active transport. Passive transport requires no energy and follows the natural concentration gradient (from high to low concentration). Examples include diffusion (movement of nonpolar molecules) and osmosis (movement of water).

Active transport works against the natural concentration gradient, moving molecules from areas of lower concentration to areas of higher concentration. Since this process works against the natural flow, it requires energy from the cell.

Think About This: Your cells are constantly using both passive and active transport. When you eat something sugary, your intestinal cells use active transport to absorb glucose against its concentration gradient!

Different proteins help with these transport processes. Channel proteins create tunnels for specific molecules to pass through during passive transport. Carrier proteins change their shape to move molecules across the membrane during active transport, using energy in the process.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Transport Proteins

Transport proteins are the cell's gatekeepers, controlling what passes through the membrane. These specialized proteins are essential for maintaining the proper balance of substances inside and outside the cell.

Carrier proteins typically handle active transport. When a specific molecule binds to a carrier protein, it triggers a shape change that moves the molecule across the membrane. This process requires energy, usually from ATP, and allows cells to concentrate important substances inside.

Channel proteins create water-filled tunnels across the membrane that allow specific molecules to pass through. These channels can open and close in response to signals, providing controlled passive transport. When open, they let molecules flow from high to low concentration without using cellular energy.

Make the Connection: Transport proteins are like security guards at the cell's entrances. Some (channel proteins) just check IDs and let people through, while others (carrier proteins) actively escort molecules across the membrane!

A third type, ionophores, are small hydrophobic proteins that increase membrane permeability to specific ions. All these transport proteins are vital for cell survival, helping maintain proper pH levels, facilitating cell communication, and supporting essential functions like protein synthesis.



We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

 

Biology

52

Dec 1, 2025

7 pages

Cell Structure and Functions - Part 1

user profile picture

audrey

@kjlledher

Cell membranes are the protective barriers that surround all living cells, controlling what goes in and out. They're made of a lipid bilayer with embedded proteins that work together to maintain the cell's internal environment. Understanding how cell membranes function... Show more

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Cell Membranes and Key Terms

Ever wonder how cells keep themselves separate from the outside world? Cell membranes are the answer! These important structures serve as barriers that protect cells from the external environment while selectively allowing certain molecules to pass through.

The cell membrane consists of a lipid bilayer (a double layer of fat cells) with membrane proteins embedded throughout. This structure creates a flexible but secure boundary around the cell.

Transport across membranes happens in two main ways: passive transport requires no energy and follows the natural concentration gradient, while active transport uses energy to move molecules against their concentration gradient.

Quick Fact: The cell membrane isn't just a static wall - it's a dynamic structure where proteins can move around within the lipid bilayer, almost like boats floating in a sea of fat molecules!

Special proteins help molecules cross the membrane: channel proteins create tunnels for passive transport, while carrier proteins change shape to actively move specific molecules across. Other important membrane components include transmembrane proteins that span the entire membrane and peripheral proteins that attach to its surface.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

The Lipid Bilayer Structure

The lipid bilayer is the foundation of all cell membranes - think of it as the cell's security fence! This structure is incredibly thin (only about five nanometers thick) but provides the essential barrier between the cell's interior and the outside world.

What makes the lipid bilayer so special is its unique structure. Each lipid molecule has two distinct parts: a hydrophilic head waterlovingwater-loving and a hydrophobic tail waterfearingwater-fearing. These lipids are called amphipathic molecules because they contain both polar and nonpolar regions.

Phospholipids are the most common lipids in cell membranes. They have a phosphate-containing head and two fatty acid chains forming the tail. One of these chains typically has a kink due to a double bond, which affects how tightly the lipids can pack together.

Remember This: The lipid bilayer forms spontaneously - the hydrophobic tails naturally face inward (away from water), while the hydrophilic heads face outward (toward water). No energy is required for this organization!

The bilayer's most important property is its impermeability - it blocks most molecules from freely passing through, with exceptions for water and gases. Another key feature is fluidity, allowing lipids and proteins to move within the membrane, which is crucial for many cellular functions.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Properties of the Lipid Bilayer

The lipid bilayer is much more than just a static barrier - it's a dynamic structure with properties that make it perfect for its role! Its impermeability is crucial, preventing random molecules from entering or exiting the cell without proper regulation.

Only water molecules and small gases like oxygen and carbon dioxide can easily pass through the lipid bilayer without assistance. Larger molecules and ions require special transport proteins to cross the membrane - this selectivity is what gives cells control over their internal environment.

The fluidity of the membrane is another game-changing property. The lipids and proteins aren't locked in place - they can move around within their layer. This movement is essential for many cellular processes and can be affected by temperature (colder temperatures decrease fluidity) and the structure of the fatty acid chains.

Did You Know? The lipid bilayer is asymmetrical - the composition of lipids and proteins in the outer layer differs from the inner layer. This asymmetry is important for cell function!

This fluid nature allows membrane proteins to interact with each other, move to specific locations when needed, and change their distribution in response to cellular signals. Without this fluidity, many cellular processes would be impossible.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Membrane Proteins

While the lipid bilayer provides the basic structure of the cell membrane, it's the proteins within it that do most of the exciting work! Membrane proteins are responsible for cell communication, transport of materials, and many other vital functions.

These proteins can move around within the lipid bilayer like boats floating on water. There are three main types: integral proteins, peripheral proteins, and lipid-bound proteins.

Integral proteins are embedded within the bilayer and can't be easily removed without destroying the membrane. Many integral proteins are transmembrane proteins, meaning they extend through the entire membrane with portions exposed to both the inside and outside of the cell. The parts of these proteins within the membrane are hydrophobic, while the exposed ends are hydrophilic.

Pro Tip: When studying membrane proteins, remember that their location determines their function. Transmembrane proteins are the only ones that can perform functions both inside and outside the cell simultaneously!

Transmembrane proteins can cross the membrane once (single-pass proteins) or multiple times (multi-pass proteins). When crossing the membrane, these proteins form an alpha-helical configuration in their hydrophobic regions, which allows them to exist comfortably within the fatty environment of the bilayer.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

More Membrane Proteins and Cell Surface

Peripheral proteins are different from integral proteins because they're attached only to the surface of the membrane. You can remove them easily without damaging the lipid bilayer. These proteins tend to be less mobile than integral proteins and often function in cell signaling or structural support.

Lipid-bound proteins are the third type and are found entirely within the boundaries of the lipid bilayer. These proteins often play roles in membrane stability and organization.

On the outer surface of many cell membranes is a layer called the glycocalyx, made up of carbohydrate chains. Think of it as the cell's protective coat! This layer varies in composition between different types of cells and provides protection against physical and chemical damage.

Cool Connection: The glycocalyx is only found on cells of higher organisms, not on simpler life forms. It's like an evolutionary upgrade to the basic cell membrane design!

The complete cell membrane is incredibly complex, with the phospholipid bilayer serving as the foundation, proteins embedded throughout providing functionality, and the glycocalyx coating the exterior surface. All these components work together to maintain cell integrity while allowing necessary interactions with the environment.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Membrane Transport

How do cells get what they need when the membrane blocks most things? They use special transport systems! The lipid bilayer is great at keeping unwanted substances out, but cells need ways to move important molecules like sugars, amino acids, and ions across this barrier.

There are two main types of transport across membranes: passive transport and active transport. Passive transport requires no energy and follows the natural concentration gradient (from high to low concentration). Examples include diffusion (movement of nonpolar molecules) and osmosis (movement of water).

Active transport works against the natural concentration gradient, moving molecules from areas of lower concentration to areas of higher concentration. Since this process works against the natural flow, it requires energy from the cell.

Think About This: Your cells are constantly using both passive and active transport. When you eat something sugary, your intestinal cells use active transport to absorb glucose against its concentration gradient!

Different proteins help with these transport processes. Channel proteins create tunnels for specific molecules to pass through during passive transport. Carrier proteins change their shape to move molecules across the membrane during active transport, using energy in the process.

1

# Cell Membranes

- Important structures because they function as a barrier from the outside environment.
- Acts as a threshold which sel

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Transport Proteins

Transport proteins are the cell's gatekeepers, controlling what passes through the membrane. These specialized proteins are essential for maintaining the proper balance of substances inside and outside the cell.

Carrier proteins typically handle active transport. When a specific molecule binds to a carrier protein, it triggers a shape change that moves the molecule across the membrane. This process requires energy, usually from ATP, and allows cells to concentrate important substances inside.

Channel proteins create water-filled tunnels across the membrane that allow specific molecules to pass through. These channels can open and close in response to signals, providing controlled passive transport. When open, they let molecules flow from high to low concentration without using cellular energy.

Make the Connection: Transport proteins are like security guards at the cell's entrances. Some (channel proteins) just check IDs and let people through, while others (carrier proteins) actively escort molecules across the membrane!

A third type, ionophores, are small hydrophobic proteins that increase membrane permeability to specific ions. All these transport proteins are vital for cell survival, helping maintain proper pH levels, facilitating cell communication, and supporting essential functions like protein synthesis.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user