AP Biology Review: Properties of Water

Front

Why does water move from the roots to the leaves of plants?

Back

Capillary action pulls the water molecules like a chain.

Front

The solid form of water (ice) is ___________ than its liquid form.

Back

less dense.

Front

What does 'Water Loving' mean?

Back

Hydrophilic.

Front

What is a buffer?

Back

Ability to resist pH change when small amount of acid added.

Front

Water molecules are strongly attracted to one another due to _______________ bonds, which causes ________________.

Back

Hydrogen; Cohesion.

Front

What property of water allows it to dissolve many substances?

Back

Polarity.

Front

What is the term for the attraction between water molecules and other substances?

Back

Adhesion.

Front

What is the significance of water's high specific heat?

Back

It helps regulate temperature in organisms and environments.

Front

What is surface tension in water?

Back

The cohesive force at the surface of water that makes it behave like a stretched elastic membrane.

Front

What is the role of water in biological systems?

Back

It serves as a solvent, temperature buffer, and medium for chemical reactions.