1 ATP production during glycolysis a requires an enzyme b oc

1. ATP production during glycolysis;

a. requires an enzyme b. occurs in the cytosol c. occurs via substrate-level phosphorylation d. all of the above

2. The reactions of the Krebs cycle occur in the:

a. Inner membrane of the mitochondria b. Intermembrane space of the mitochondria c. The cycoplasm d. The matrix of the mitochondria

3. The movement of electrons down the electron transport chain

a. Is used to make acetyl-CoA b. Generates CO2 c. Produces an electron gradient d. Pumps protons into the intermembrane space

4. Which of the following accurately describes a distinction between lactic acid fermentation and alcoholic (ethanol) fermentation?

a. Lactic acid fermentation occurs in prokaryotes, whereas alcoholic (ethanol) fermentation occurs in eukaryotes b. The final electron acceptor in lactic acid fermentation is pyruvate; the final electron acceptor in alcoholic (ethanol) fermentation is acetaldehyde c. In lactic acid fermentation, NADH is produced by glycolysis; in alcoholic (ethanol) fermentation, NADH is produced by the Krebs cycle d. In lactic acid fermentation, cell use CO2 in place of oxygen; in alcoholic (ethanol) fermentation, cells use SO4

5. Which pathway is see in both fermentation and aerobic respiration?

a. Krebs cycle b. Electron transport c. Glycolysis d. Pyruvate oxidation

Solution

1. d. all of the above.

Glycolysis is an enzyme controlled process of conversion of glucose into pyruvate. This process occurs in cytoplasm.

2.d. The matrix of the mitochondria.

Kerbs cycle occurs in the matrix of mitochondria.

3.d.Pumps protons into the intermembrane space.

4.b. The final electron acceptor in lactic acid fermentation is pyruvate; the final electron acceptor in alcoholic (ethanol) fermentation is acetaldehyde

5. c. Glycolysis .

Glycolysis is a common pathway for both aerobic respiration and anaerobic respiration.