AP Bio Unit 1 Review

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (polar) head and two hydrophobic (nonpolar) tails, forming a bilayer in cell membranes.

Front

How do phospholipids interact with water molecules?

Back

The polar heads interact with water, while the nonpolar tails do not.

Front

What is capillary action in plants?

Back

Capillary action is the ability of water to move through narrow spaces, such as the xylem in plants, due to adhesion and cohesion.

Front

What is the primary function of carbohydrates?

Back

Carbohydrates serve as a primary energy source and structural components in cells.

Front

What are the unique properties of water due to hydrogen bonding?

Back

Water exhibits cohesion, adhesion, high specific heat, and solvent properties due to hydrogen bonding.

Front

What is transpiration in plants?

Back

Transpiration is the process of water vapor loss from plant leaves, which helps draw water from roots through the xylem.

Front

What is the difference between DNA and RNA?

Back

The main difference is that DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.

Front

What are the roles of cohesion and adhesion in water movement?

Back

Cohesion allows water molecules to stick together, while adhesion allows them to stick to other surfaces, aiding in water transport in plants.

Front

What type of macromolecule is glucose?

Back

Glucose is a carbohydrate.

Front

What is the significance of uracil in RNA?

Back

Uracil replaces thymine in RNA, allowing for the proper pairing with adenine during transcription.