AP Bio Unit 3 Extra Credit

Front

What is oxidative phosphorylation?

Back

A process in cellular respiration that uses the electron transport chain to create ATP from ADP and inorganic phosphate, driven by the flow of protons across a membrane.

Front

What is the role of RUBISCO in the Calvin Cycle?

Back

RUBISCO is the key enzyme that catalyzes the fixation of carbon dioxide (CO2) into organic molecules during photosynthesis.

Front

Where does the Kreb's cycle occur in the mitochondria?

Back

The Kreb's cycle occurs in the matrix of the mitochondria.

Front

What bonds must be broken to form an ADP molecule from ATP?

Back

The bonds between the second and third phosphate groups (C and D) must be broken.

Front

How can you overcome a competitive inhibitor in a biochemical reaction?

Back

By adding more reactants, which increases the likelihood of substrate binding to the active site.

Front

What is chemiosmosis?

Back

A process that uses the energy stored in a proton gradient across a membrane to drive the synthesis of ATP.

Front

Define substrate-level phosphorylation.

Back

A method of forming ATP by directly transferring a phosphate group to ADP from a phosphorylated intermediate.

Front

What is the function of the electron transport chain?

Back

To transfer electrons from electron donors to electron acceptors via redox reactions, creating a proton gradient that drives ATP synthesis.

Front

Explain the significance of the proton gradient in cellular respiration.

Back

The proton gradient created by the electron transport chain is essential for ATP production during oxidative phosphorylation.

Front

What is the main product of the Kreb's cycle?

Back

The main products of the Kreb's cycle are NADH, FADH2, ATP, and CO2.