AP Biology Unit 1 Review

Front

What allows some insects to stand on the surface of calm water without breaking it?

Back

The insects are light enough so they do not break the hydrogen bonds holding the water molecules together.

Front

What are the elements found in carbohydrates, lipids, proteins, and nucleic acids?

Back

Carbohydrates: CHO 1:2:1, Lipids: CHO, Proteins: CHON, Nucleic Acids: CHONP.

Front

Which macromolecule can form structural parts of the cell, be enzymes, or be involved in cell movement?

Back

Proteins.

Front

How do organisms manage to grow, reproduce, and maintain their internal organization?

Back

Organisms exchange matter with the environment, taking in nutrients and releasing waste products.

Front

What process describes the movement of water from the roots to the leaves of plants due to evaporation?

Back

Cohesion, adhesion, and transpiration.

Front

Define cohesion in the context of water molecules.

Back

Cohesion is the attraction between water molecules due to hydrogen bonding.

Front

Define adhesion in the context of water molecules.

Back

Adhesion is the attraction between water molecules and other substances.

Front

What is transpiration in plants?

Back

Transpiration is the process of water vapor being released from plant leaves into the atmosphere.

Front

What is the chemical formula for carbohydrates?

Back

CHO with a ratio of 1:2:1.

Front

What role do proteins play in biological systems?

Back

Proteins serve as enzymes, structural components, and are involved in cell movement.