AP Biology Topic 1.1 Properties of Water

Front

What is a solvent?

Back

A solvent is the dissolving agent in a solution, typically a liquid that dissolves a solute.

Front

What property of water allows sweat to lower body temperature?

Back

The absorption of heat by the breaking of hydrogen bonds.

Front

What effect does the high surface tension of water have?

Back

It allows small insects, like water striders, to walk on the surface of water.

Front

What is a buffer solution?

Back

A buffer solution maintains a relatively constant pH when either acids or bases are added.

Front

Why does water have no net charge but has slight charges in different parts of the molecule?

Back

The oxygen end is slightly negative and the hydrogen end is slightly positive.

Front

What is cohesion in relation to water?

Back

Cohesion is the property of water that allows it to stick to itself, leading to surface tension.

Front

What is adhesion in relation to water?

Back

Adhesion is the property of water that allows it to stick to other substances.

Front

How does water's high specific heat benefit living organisms?

Back

It helps regulate temperature in organisms and environments, preventing rapid temperature changes.

Front

What is the significance of water's density in its solid form?

Back

Ice is less dense than liquid water, allowing it to float and insulate bodies of water.

Front

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

Back

Hydrogen bonds contribute to water's high specific heat, surface tension, and solvent capabilities.