8. Respiration

Fermentation allows a cell to:

Which of the following describes a primary function of both lactic acid fermentation and alcohol fermentation?

In which of the steps of aerobic and anaerobic cellular respiration does substrate-level phosphorylation occur?

Which of the following statements about NAD⁺ is true?

Which metabolic pathway is common to both fermentation and cellular respiration of a glucose molecule?

a. The citric acid cycle

b. The electron transport chain

c. Glycolysis

d. Reduction of pyruvate to lactate

Which of the following correctly describe the fermentation pathway? Select True or False for each statement.

T/FIt includes a reaction that oxidizes NADH to NAD⁺.

T/FIt synthesizes ATP by substrate-level phosphorylation.

T/FIt includes a reaction that reduces NAD⁺ to NADH.

T/FIt synthesizes electron acceptors, so that cellular respiration can continue.

Which of the following is a distinction between cellular respiration and fermentation?

a. The transfer of from intermediate substrates to ADP

b. The movement of H+ across a membrane down its concentration gradient

c. The splitting of glucose into two molecules of pyruvate

d. Electrons moving through the electron transport chain

In which of the following is the first molecule becoming reduced to the second molecule?

a. Pyruvate → acetylCoA

b. Pyruvate → lactate

c. Glucose → pyruvate

d. NADH + H+ →NAD+ + 2H