AP Biology: Unit 3 Review (CED)

Front

What is denaturation in proteins?

Back

Denaturation is the process where proteins lose their native structure due to external stress or conditions, such as heat or pH changes, affecting their function.

Front

Which protein structure is unaffected by denaturation?

Back

Primary structure is unaffected by denaturation; it refers to the linear sequence of amino acids in a protein.

Front

What is the effect of doubling the amount of enzyme on free energy?

Back

Doubling the amount of enzyme has no effect on free energy; enzymes lower the activation energy but do not change the overall free energy of the reaction.

Front

Describe the pathway of electrons in the light reactions of photosynthesis.

Back

The pathway of electrons in the light reactions is: H2O → PSII → ETC → PSI → NADPH.

Front

What are the products of the light-dependent reactions of photosynthesis?

Back

The products are NADPH and ATP.

Front

Where does the substrate bind on an enzyme?

Back

The substrate binds at the active site of the enzyme.

Front

What is the role of ATP in cellular processes?

Back

ATP serves as the primary energy currency of the cell, providing energy for various biochemical reactions.

Front

What is the function of NADPH in photosynthesis?

Back

NADPH is used as a reducing agent in the Calvin cycle to help convert carbon dioxide into glucose.

Front

What is the difference between competitive and non-competitive inhibition?

Back

Competitive inhibition occurs when an inhibitor competes with the substrate for the active site, while non-competitive inhibition occurs when an inhibitor binds to an allosteric site, changing the enzyme's shape.

Front

What is the significance of the active site on an enzyme?

Back

The active site is crucial for enzyme function as it is the region where substrate molecules bind and undergo a chemical reaction.