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Cohesion of Water Molecules

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Questions and Answers

What is the primary force that holds water molecules together?

Tension

Evaporation

Adhesion

Cohesion (correct)

How does cohesion affect water transport in plants?

It decreases the water pressure in roots.

It allows water to evaporate from leaves.

It facilitates water transport against gravity. (correct)

It prevents water absorption by roots.

Which statement best describes adhesion in relation to water?

Adhesion allows water molecules to bind to each other.

Adhesion occurs only in solid substances.

Adhesion refers to water molecules sticking to another substance. (correct)

Adhesion helps in the upward movement of water by itself.

What role do hydrogen bonds play in water's cohesion?

They hold water molecules together. Signup and view all the answers

Which term refers to the force that helps water stick to the walls of plant cells?

Adhesion Signup and view all the answers

Explain how the principles of cohesion and adhesion contribute to a plant's ability to transport water.

Cohesion allows water molecules to stick together, forming a continuous column, while adhesion helps water attach to plant cell walls, facilitating upward movement against gravity. Signup and view all the answers

Describe the role of hydrogen bonds in both cohesion and adhesion as it pertains to water.

Hydrogen bonds create cohesive forces between water molecules and adhesive forces between water and other substances, like plant cell walls. Signup and view all the answers

In what way does adhesion complement the process of photosynthesis in plants?

Adhesion helps water stick to the cell walls, ensuring an adequate supply of water to cells for photosynthesis processes. Signup and view all the answers

How does the phenomenon of cohesion specifically assist in overcoming gravitational forces in plants?

Cohesion enables water molecules to remain connected, allowing them to resist the pull of gravity when moving upwards through the plant. Signup and view all the answers

Discuss the significance of water's cohesion and adhesion properties in maintaining plant health.

These properties ensure efficient water transport and nutrient distribution, essential for keeping plants healthy and functional. Signup and view all the answers

Study Notes

Cohesion of Water Molecules

Cohesion is the attraction between water molecules, caused by hydrogen bonds
Cohesion contributes to water transport in plants because it helps pull columns of water upwards against gravity
Adhesion refers to the attraction between different substances, such as water and the walls of plant cells

Cohesion of Water Molecules

Hydrogen bonds hold water molecules together, a phenomenon called cohesion.
Cohesion helps the transport of water against gravity in plants.
Adhesion is an attraction between different substances, for example, water and plant cell walls.

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Description

Explore the concept of cohesion in water molecules and its significance in plant water transport. This quiz covers the role of hydrogen bonds in cohesion and how it contrasts with adhesion. Test your understanding of these fundamental concepts in plant biology.