AP BIO Unit 3

Front

What are enzymes made of?

Back

Enzymes are made of proteins.

Front

What is the role of enzymes in chemical reactions?

Back

Enzymes lower the activation energy of a reaction, increasing the rate of the reaction.

Front

Can enzymes bind to any substrate?

Back

No, enzymes are specific and can only bind to certain substrates.

Front

What is glycolysis?

Back

Glycolysis is the metabolic pathway that converts glucose into pyruvate, producing ATP and NADH.

Front

What is the correct order of events in photosynthesis?

Back

Photosystem II, Electron Transport Chain (ETC), Photosystem I, Calvin Cycle.

Front

What is competitive inhibition?

Back

Competitive inhibition occurs when a substance competes with the substrate for the active site of an enzyme.

Front

What is the difference between competitive and noncompetitive inhibition?

Back

In competitive inhibition, the inhibitor competes with the substrate for the active site; in noncompetitive inhibition, the inhibitor binds to a different site, reducing enzyme activity regardless of substrate concentration.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

How do enzymes affect activation energy?

Back

Enzymes lower the activation energy required for a reaction, making it easier for the reaction to occur.

Front

What is the Krebs Cycle?

Back

The Krebs Cycle, also known as the citric acid cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA.