Unit 1 Review-Chemistry of Life

Front

What property of water enables it to move from the roots to the leaves of plants?

Back

Water exhibits cohesive behavior.

Front

Why do large bodies of water, such as lakes and oceans, not quickly fluctuate in temperature?

Back

Water has a high heat capacity.

Front

What property of water helps to moderate Earth’s temperature and our internal body temperature?

Back

Specific heat capacity.

Front

Why does ice float on water?

Back

As water freezes, it expands and its density decreases.

Front

What are the macromolecules that are structured as nucleic acids?

Back

Nucleic acids.

Front

Define cohesion in the context of water.

Back

Cohesion is the property of water molecules to stick to each other due to hydrogen bonding.

Front

Define adhesion in the context of water.

Back

Adhesion is the property of water molecules to stick to other substances.

Front

What is the significance of water being a universal solvent?

Back

It allows many substances to dissolve in water, facilitating chemical reactions in biological systems.

Front

Explain the term 'high heat capacity' in relation to water.

Back

High heat capacity means water can absorb a lot of heat without a significant change in temperature.

Front

What is the role of water in temperature regulation for living organisms?

Back

Water helps maintain stable internal temperatures through its high heat capacity.