quiz 8

Question 1

citric acid cycle enzyme NOT subject to allosteric regulation

Answer 1

fumarate hydratase

Question 2

citric acid cycle enzymes that catalyzes substrate-level phosphorylation

Answer 2

succinyl CoA synthetase

Question 3

As pyruvate is prepared for the citric acid cycle, it undergoes a process of ____________________

Answer 3

oxidative decarboxylation

Question 4

T or F: The Q cycle can transport protons out of the matrix without additional electron transfer between complexes I and III

Answer 4

true

Question 5

When electrons flow through the electron transport system from NADH to oxygen, what is the sequence of molecules through which they move?

Answer 5

complex I, coenzyme Q, complex III, cytochrome c, complex IV, O2

Question 6

steps in the degradation of fatty acids

Answer 6

hydration, activation, thiolysis

Question 7

In plants and other eukaryotes that do not depend upon fatty acids as an energy source, β-oxidation occurs in the __________

Answer 7

glyoxysome

Question 8

in eukaryotes, pyruvate is converted to acetyl CoA in the ___________________

Answer 8

mitochondrial matrix

Question 9

In prokaryotes that carry out aerobic respiration, the [A] serves the same purpose as the inner mitochondrial membrane and the [B] serves the same purpose as the mitochondrial matrix.

Answer 9

A- plasma membrane
B- cytoplasm

Question 10

major transport systems of the inner mitochondrial membrane

Answer 10

dicarboxylate carrier, tricarboxylate carrier, pyruvate carrier, ATP-ADP carrier

Question 11

What function does thermogenin serve for brown fat cells?

Answer 11

generate heat for newborns and hibernating animals

Question 12

which complex does NOT pump protons out of the matrix to generate the proton gradient

Answer 12

complex II