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Why Water is Super Sticky: How It Helps Plants and Life!

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Salma Bouzarouata

11/5/2023

AP Biology

Properties of Water: Cohesion, Adhesion, and Surface Tension

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AP Biology

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Cellular Energetics

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The Processes of Photosynthesis

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Photosynthesis

Why Water is Super Sticky: How It Helps Plants and Life!

Water's unique molecular properties play a vital role in sustaining life on Earth through hydrogen bonding and surface tension in water molecules. The importance of water's cohesive and adhesive properties in living systems enables essential biological processes and survival mechanisms.

  • Water molecules form hydrogen bonds due to their polar nature, creating unique properties like cohesion and adhesion
  • Surface tension resulting from hydrogen bonding enables crucial biological functions
  • Capillary action and nutrient access for plants is made possible through water's adhesive and cohesive properties
  • Water's high heat capacity and unique freezing properties are essential for aquatic life
  • The solvent properties of water facilitate nutrient transport in living organisms
...

11/5/2023

27

a small -part of something, to form a bigger part. College Board notes 1.1, 1.2, 1.3. 1.1 Structure of water and hydrogen bonding - the Subc

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Water Properties in Living Systems

Water's unique properties are fundamental to life processes through various mechanisms including surface tension, solvency, and capillary action. These properties emerge from water's molecular structure and bonding capabilities.

Definition: Capillary action is the combined result of water's cohesive and adhesive properties, enabling liquid movement against gravity.

Example: Plants utilize capillary action to transport water from soil through their roots and up into their stems.

Highlight: Water's high heat capacity and unique freezing properties protect aquatic organisms in cold climates by allowing ice to float while maintaining liquid water underneath.

Quote: "Living systems depend upon properties of water, and hydrogen bonds with water molecules result in surface tension."

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Subjects

AP Biology

Cellular Energetics

The Processes of Photosynthesis

Photosynthesis

 

AP Biology

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27

•

Nov 5, 2023

•

2 pages

Why Water is Super Sticky: How It Helps Plants and Life!

user profile picture

Salma Bouzarouata

@salmabouzarouata_swim16

Water's unique molecular properties play a vital role in sustaining life on Earth through hydrogen bonding and surface tension in water molecules. The importance of water's cohesive and adhesive properties in living systemsenables essential biological processes and survival... Show more

a small -part of something, to form a bigger part. College Board notes 1.1, 1.2, 1.3. 1.1 Structure of water and hydrogen bonding - the Subc

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Water Properties in Living Systems

Water's unique properties are fundamental to life processes through various mechanisms including surface tension, solvency, and capillary action. These properties emerge from water's molecular structure and bonding capabilities.

Definition: Capillary action is the combined result of water's cohesive and adhesive properties, enabling liquid movement against gravity.

Example: Plants utilize capillary action to transport water from soil through their roots and up into their stems.

Highlight: Water's high heat capacity and unique freezing properties protect aquatic organisms in cold climates by allowing ice to float while maintaining liquid water underneath.

Quote: "Living systems depend upon properties of water, and hydrogen bonds with water molecules result in surface tension."

a small -part of something, to form a bigger part. College Board notes 1.1, 1.2, 1.3. 1.1 Structure of water and hydrogen bonding - the Subc

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Structure of Water and Hydrogen Bonding

The fundamental structure of water molecules and their bonding properties form the basis for understanding water's role in biological systems. Water molecules consist of oxygen and hydrogen atoms joined by covalent bonds, with differences in electronegativity creating polarity.

Definition: Covalent bonds occur when atoms share electrons, and polar covalent bonds form when there is a difference in atomic electronegativity.

Vocabulary: Cohesion refers to the attraction between molecules of the same type, while adhesion describes bonding between different types of molecules.

Example: In water molecules, cohesion occurs when one oxygen atom bonds with two hydrogen atoms through hydrogen bonds H−O−HH-O-H.

Highlight: The polar nature of water molecules enables them to form hydrogen bonds with other water molecules and different substances, a crucial property for biological processes.

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