CHAPTER 10 MULTIPLE CHOICE VERSION

In prokaryotes that carry out aerobic respiration, the ________ serves the same purpose as the inner mitochondrial membrane and the ________ serves the same purpose as the mitochondrial matrix.

plasma membrane; cytoplasm

In eukaryotes, pyruvate is converted to acetyl CoA

in the mitochondrial matrix.

Pyruvate is converted to acetyl CoA through the action of

pyruvate dehydrogenase complex

Each of the following citric acid cycle enzymes catalyzes electron transfer to NADH/FADH₂ except

succinyl CoA synthetase.

Each of the following statements about the citric acid cycle is true except

Oxidation by transfer of electrons to coenzymes occurs at two steps

Each of the following is a product of the citric acid cycle except

acetyl CoA

Because the citric acid cycle links degradation and synthesis, the pathway is classified as

amphibolic.

β-oxidation

is a process used to oxidize fatty acids.

When fats are used as an energy source, the glycerol portion enters ________ when it has been converted to ________.

glycolysis; dihydroxyacetone phosphate

Pyruvate dehydrogenase is regulated by all of the following except

CO_2.

The form of fatty acid that is transported into the mitochondrion is

fatty acyl CoA.

In electron transport, each of the following respiratory complexes is involved in the flow of electrons from NADH to O₂ except

complex II.

Each of the following molecules is an electron carrier in the electron transport system except

All of the above are electron carriers

Which of the following electron carriers transfers both protons and electrons?

coenzyme Q

Supercomplexes of electron transport complexes are known as

respirasomes.

The chemiosmotic model of ATP synthesis is based on each of the following lines of experimental evidence except

Oxidative phosphorylation does not require a membrane-enclosed compartment.