AP Biology: Unit 3 Review (CED)

Front

What is the difference between competitive and noncompetitive inhibitors?

Back

Competitive inhibitors bind to the active site of an enzyme, while noncompetitive inhibitors bind to a different site, altering the enzyme's function.

Front

Which molecules are electron carriers in the electron transport chain during cellular respiration?

Back

NADH and FADH2 are the primary electron carriers in the electron transport chain.

Front

What must occur to maintain order and power cellular processes?

Back

Energy input must exceed energy loss to maintain order and power cellular processes.

Front

What effect does increasing enzyme concentration have on reaction rate?

Back

Increasing enzyme concentration generally increases the rate of the reaction.

Front

What is the function of the electron transport chain between Photosystem II and Photosystem I?

Back

The electron transport chain establishes an electrochemical gradient of protons.

Front

Define competitive inhibition in enzymatic reactions.

Back

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

Front

What role do NADH and FADH2 play in cellular respiration?

Back

NADH and FADH2 transport electrons to the electron transport chain, facilitating ATP production.

Front

Explain the significance of the electrochemical gradient in cellular processes.

Back

The electrochemical gradient is crucial for ATP synthesis and the transport of ions across membranes.

Front

What is the relationship between substrate concentration and reaction rate in enzyme-catalyzed reactions?

Back

Increasing substrate concentration increases the reaction rate until the enzyme becomes saturated.

Front

What is the role of ATP synthase in cellular respiration?

Back

ATP synthase synthesizes ATP from ADP and inorganic phosphate using the energy from the proton gradient.