AP Biology Review: Properties of Water

Front

What is the high heat capacity of water?

Back

Water can absorb a lot of heat before its temperature changes significantly, which helps regulate temperature in environments.

Front

Why is water known as a universal solvent?

Back

Water can dissolve many substances due to its polarity, making it essential for biological processes.

Front

What is the pH scale range?

Back

The pH scale ranges from 0 to 14, indicating the acidity or basicity of a solution.

Front

What happens to the pH of a solution when acids are added?

Back

The pH of a solution drops below 7 when acids are added, indicating increased acidity.

Front

What are polar substances?

Back

Polar substances have a distribution of electrical charge, allowing them to interact with water.

Front

What are non-polar substances?

Back

Non-polar substances do not have a charge distribution and do not mix well with water.

Front

What is the significance of water's cohesion?

Back

Cohesion allows water molecules to stick together, which is important for processes like water transport in plants.

Front

What is the significance of water's adhesion?

Back

Adhesion allows water to stick to other surfaces, which helps in processes like capillary action.

Front

What role does water play in temperature regulation?

Back

Water's high heat capacity helps stabilize temperatures in organisms and environments.

Front

What is the difference between acids and bases?

Back

Acids release hydrogen ions (H+) in solution, while bases release hydroxide ions (OH-).