Chapter 7

Glycolysis starts and ends in the _____. a. nucleus b. mitochondrion c. plasma membrane d. cytoplasm

Which of the following molecules does not form during glycolysis? a. NADH b. pyruvate c. \(\mathrm{FADH}_{2}\) d. ATP

Aerobic respiration is completed in the _____. a. nucleus b. mitochondrion c. plasma membrane d. cytoplasm

In the third stage of aerobic respiration, _____ is the final acceptor of electrons from glucose. a. water b. hydrogen c. oxygen d. NADH

In alcoholic fermentation, _____ is the final acceptor of electrons stripped from glucose. a. oxygen b. pyruvate c. acetaldehyde d. sulfate

Fermentation pathways produce no more ATP beyond the small yield from glycolysis. The remaining reactions ______. a. regenerate FAD b. regenerate \(\mathrm{NAD}^{+}\) c. regenerate NAD d. regenerate FADH\(_{2}\)

In certain organisms and under certain conditions, ______ can be used as an energy alternative to glucose. a. fatty acids b. glycerol c. amino acids d. all of the above

Match the event with its most suitable description. _____glycolysis _____fermentation _____Krebs cycle _____electron transfer phosphorylation a. ATP, NADH, FADH \(\mathrm{CO}_{2},\) and water form b. glucose to two pyruvates c. NAD \(^{+}\) regenerated, two ATP net d. \(\mathrm{H}^{+}\) flows through ATP synthases