Cell biology is a fundamental topic in biology, covering the... Show more
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
43
•
Dec 9, 2022
•
Cell Organelles and Their Cool Functions for Class 9 Kids - PDF Guide
Isla <3
@islas.studynote
Specialized Cells and Cell Transport
This page delves deeper into specialized cells, particularly focusing on bacterial cells, gametes , and ciliated epithelial cells. It also introduces the concept of cell transport.
Bacterial cell components are listed:
- Ribosomes
- Cell wall
- Flagellum
- Plasmid
- Cell membrane
- Clumps of DNA
The page provides detailed information on gametes:
Definition: Gametes are haploid cells, meaning they contain half the number of chromosomes needed for reproduction.
Characteristics of egg cells:
- Contain nutrients to feed the embryo
- Change structure after fertilization to prevent other sperm from entering
Characteristics of sperm cells:
- Long tail for swimming
- Numerous mitochondria for energy
- Acrosome containing digestive enzymes
- Five parts: tail, head, acrosome, nucleus, middle section
Highlight: Both sperm and egg cells have a haploid nucleus, which is crucial for understanding the process of fertilization.
The page also introduces cell transport mechanisms:
Definition: Diffusion is the net movement of particles from an area of high concentration to low concentration.
Factors affecting diffusion rate:
- Concentration gradient
- Temperature
- Surface area
The page concludes with information on ciliated epithelial cells, which have cilia on top to move substances, such as mucus in the trachea.
This detailed exploration of specialized cells and transport mechanisms provides essential knowledge for understanding more complex biological processes.
Specialized Cells and Cell Transport Mechanisms
This page continues the discussion on specialized cells and delves deeper into cell transport mechanisms, providing valuable information on animal cell organelles and their functions.
The page covers the following specialized cells:
- Red Blood Cells: Function: Carry oxygen around the body Adaptations: No nucleus, contains hemoglobin, bi-concave disc shape
- Nerve Cells: Function: Carry electrical impulses around the body Adaptations: Branched endings, myelin sheath insulating the axon
- Sperm Cells: Function: Fertilize the ovum Adaptations: Tail, contains numerous mitochondria
- Palisade Cells: Function: Photosynthesis Adaptation: Numerous chloroplasts located at the top surface of a leaf
The page also elaborates on cell transport mechanisms:
Definition: Osmosis is the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane.
Example: In plants, water moves from the soil into the root hair cell through osmosis.
The text explains the importance of active transport in plant roots and the small intestine:
- In plant roots: Mineral ions move against the concentration gradient to enter root hair cells.
- In the small intestine: Sugar is absorbed when its concentration in the intestine is lower than in the blood.
Highlight: The page also discusses how various structures are adapted for efficient gas exchange, such as fish gills and lungs, emphasizing the importance of surface area, thin membranes, and good blood supply.
This comprehensive coverage of specialized cells and transport mechanisms provides students with a solid understanding of how cells are adapted to perform specific functions in organisms.
The Heart
This page begins to discuss the structure and function of the heart, focusing on its role in the circulatory system. While the information is limited, it provides a starting point for understanding the heart's anatomy.
Key points covered:
- Vena Cava: Function: Transports deoxygenated blood from the body
- Right Atrium: Function: Receives blood low in oxygen Action: Pushes blood into the right ventricle
- Right Ventricle: Mentioned, but no specific function is provided in the given text
Highlight: The heart's structure is closely tied to its function of pumping oxygenated and deoxygenated blood throughout the body.
This brief introduction to the heart's structure sets the stage for a more detailed discussion of the circulatory system and how it relates to cellular function and gas exchange, which were covered in previous pages.
While this page is less detailed than the others, it demonstrates how the study of cell biology extends to understanding larger organ systems in the body.
Cell Structure and Function
This page provides a comprehensive overview of cell organelles and their functions in both plant and animal cells. It serves as an excellent resource for understanding the functions of cell organelles in biology.
The page covers various organelles and their roles:
- Ribosomes: Site of protein synthesis
- Nucleus: Controls the cell and stores DNA
- Mitochondria: Location of aerobic respiration
- Chloroplasts: Absorb sunlight for photosynthesis
- Vacuole: Contains cell sap
- Cytoplasm: Where chemical reactions occur
- Cell membrane: Controls what enters and leaves the cell
- Cell wall: Provides structure to the cell
Highlight: The text distinguishes between eukaryotic cells and prokaryotic cells , which is crucial for understanding cell biology.
Vocabulary: Eukaryotic cells are defined as multicellular organisms with a nucleus, while prokaryotic cells are unicellular organisms without a nucleus .
The page also mentions that red blood cells are responsible for carrying oxygen around the body, which is an important function in the circulatory system.
Example: Plant cells have three additional structures not found in animal cells: vacuole, cell wall, and chloroplasts.
This comprehensive overview provides a solid foundation for understanding cell structure and function, which is essential for students studying biology at various levels.
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
Cell Organelles and Their Cool Functions for Class 9 Kids - PDF Guide
Isla <3
@islas.studynote
Cell biology is a fundamental topic in biology, covering the structure and functions of cell organelles in biology. This summary explores various cell types, their components, and specialized functions. It also delves into the difference between eukaryotic and prokaryotic... Show more
Specialized Cells and Cell Transport
This page delves deeper into specialized cells, particularly focusing on bacterial cells, gametes , and ciliated epithelial cells. It also introduces the concept of cell transport.
Bacterial cell components are listed:
- Ribosomes
- Cell wall
- Flagellum
- Plasmid
- Cell membrane
- Clumps of DNA
The page provides detailed information on gametes:
Definition: Gametes are haploid cells, meaning they contain half the number of chromosomes needed for reproduction.
Characteristics of egg cells:
- Contain nutrients to feed the embryo
- Change structure after fertilization to prevent other sperm from entering
Characteristics of sperm cells:
- Long tail for swimming
- Numerous mitochondria for energy
- Acrosome containing digestive enzymes
- Five parts: tail, head, acrosome, nucleus, middle section
Highlight: Both sperm and egg cells have a haploid nucleus, which is crucial for understanding the process of fertilization.
The page also introduces cell transport mechanisms:
Definition: Diffusion is the net movement of particles from an area of high concentration to low concentration.
Factors affecting diffusion rate:
- Concentration gradient
- Temperature
- Surface area
The page concludes with information on ciliated epithelial cells, which have cilia on top to move substances, such as mucus in the trachea.
This detailed exploration of specialized cells and transport mechanisms provides essential knowledge for understanding more complex biological processes.
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
Specialized Cells and Cell Transport Mechanisms
This page continues the discussion on specialized cells and delves deeper into cell transport mechanisms, providing valuable information on animal cell organelles and their functions.
The page covers the following specialized cells:
- Red Blood Cells: Function: Carry oxygen around the body Adaptations: No nucleus, contains hemoglobin, bi-concave disc shape
- Nerve Cells: Function: Carry electrical impulses around the body Adaptations: Branched endings, myelin sheath insulating the axon
- Sperm Cells: Function: Fertilize the ovum Adaptations: Tail, contains numerous mitochondria
- Palisade Cells: Function: Photosynthesis Adaptation: Numerous chloroplasts located at the top surface of a leaf
The page also elaborates on cell transport mechanisms:
Definition: Osmosis is the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane.
Example: In plants, water moves from the soil into the root hair cell through osmosis.
The text explains the importance of active transport in plant roots and the small intestine:
- In plant roots: Mineral ions move against the concentration gradient to enter root hair cells.
- In the small intestine: Sugar is absorbed when its concentration in the intestine is lower than in the blood.
Highlight: The page also discusses how various structures are adapted for efficient gas exchange, such as fish gills and lungs, emphasizing the importance of surface area, thin membranes, and good blood supply.
This comprehensive coverage of specialized cells and transport mechanisms provides students with a solid understanding of how cells are adapted to perform specific functions in organisms.
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 Heart
This page begins to discuss the structure and function of the heart, focusing on its role in the circulatory system. While the information is limited, it provides a starting point for understanding the heart's anatomy.
Key points covered:
- Vena Cava: Function: Transports deoxygenated blood from the body
- Right Atrium: Function: Receives blood low in oxygen Action: Pushes blood into the right ventricle
- Right Ventricle: Mentioned, but no specific function is provided in the given text
Highlight: The heart's structure is closely tied to its function of pumping oxygenated and deoxygenated blood throughout the body.
This brief introduction to the heart's structure sets the stage for a more detailed discussion of the circulatory system and how it relates to cellular function and gas exchange, which were covered in previous pages.
While this page is less detailed than the others, it demonstrates how the study of cell biology extends to understanding larger organ systems in the body.
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 Structure and Function
This page provides a comprehensive overview of cell organelles and their functions in both plant and animal cells. It serves as an excellent resource for understanding the functions of cell organelles in biology.
The page covers various organelles and their roles:
- Ribosomes: Site of protein synthesis
- Nucleus: Controls the cell and stores DNA
- Mitochondria: Location of aerobic respiration
- Chloroplasts: Absorb sunlight for photosynthesis
- Vacuole: Contains cell sap
- Cytoplasm: Where chemical reactions occur
- Cell membrane: Controls what enters and leaves the cell
- Cell wall: Provides structure to the cell
Highlight: The text distinguishes between eukaryotic cells and prokaryotic cells , which is crucial for understanding cell biology.
Vocabulary: Eukaryotic cells are defined as multicellular organisms with a nucleus, while prokaryotic cells are unicellular organisms without a nucleus .
The page also mentions that red blood cells are responsible for carrying oxygen around the body, which is an important function in the circulatory system.
Example: Plant cells have three additional structures not found in animal cells: vacuole, cell wall, and chloroplasts.
This comprehensive overview provides a solid foundation for understanding cell structure and function, which is essential for students studying biology at various levels.
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