16. Consider the enzyme-catalyzed pathway below. It is regulated by feedback inh

Question

16. Consider the enzyme-catalyzed pathway below. It is regulated by feedback inhibition of enzyme. Which of the following statements is not accurate regarding this pathway?

A->B->C->D->E->F

Compound F binds to the active site of enzyme 1

Enzyme 1 contains an allosteric site for compound F

When enough compound F is made in high enough levels, it shuts off its own synthesis

When F binds to enzyme 1, it causes a conformational change

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

a. Inner membrane of the mitochondria

b. Intermembrane space of the mitochondria

c. the cytoplasm

d. the matrix of the mitochondria

35. 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

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

a. Lactic acid fermentation occurs in prokaryotes, where as alcoholic (ethanol) fermentation occurs in eukaryotics

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

c. in lactic acid formation, NADH is produced by glycolysis, in alcholic (ethanol) fermentation, NADH is produced by krebs cycle

d. In lactic acid fermentation, cell use CO2 in place of oxygen; in alcoholic (ethanol) fermentation, cells use SO4

37. Which pathway is see in both fermentation and aerobic respiration

a. krebs cycle

b. electron transport

c. glycolysis

d. pyruvate oxidation

Explanation / Answer

16. Compound F binds to the active site of enzyme 1

17.d. matrix of mitochondria

35. d. pumps protons into intermembrane space

36. b. the final electron acceptor in lactic acid fermentation is pyruvate; the final electron acceptor in alcholic (ethanol) fermentation is acetaldehyde

37. glycolysis (c).

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