AP Biology: Unit 3 Review (CED)

Front

What are the main electron carriers in cellular respiration?

Back

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

Front

Where does the substrate bind on an enzyme?

Back

The substrate binds at the active site of the enzyme.

Front

What effect does increasing enzyme concentration have on reaction rate?

Back

Increasing enzyme concentration increases the rate of the reaction.

Front

Where does the Calvin cycle occur in the chloroplast?

Back

The Calvin cycle takes place in the stroma of the chloroplast.

Front

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

Back

The electron transport chain establishes an electrochemical gradient of protons.

Front

Define 'active site' in the context of enzymes.

Back

The active site is the region on an enzyme where the substrate binds and the reaction occurs.

Front

What is the function of NADH in cellular respiration?

Back

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

Front

Explain the significance of the electrochemical gradient in cellular respiration.

Back

The electrochemical gradient is crucial for ATP synthesis as it drives protons through ATP synthase.

Front

What is the main product of the Calvin cycle?

Back

The main product of the Calvin cycle is glucose.

Front

How does temperature affect enzyme activity?

Back

Temperature affects enzyme activity; optimal temperatures increase activity, while extreme temperatures can denature enzymes.