1
A) fermentation B) anaerobic C) aerobic D) catabolism 2
A) production of sulfates from H2S B) production of methane by methanogens C) glycolysis by purple bacteria D) utilization of methane by methanogens 3
A) NADH B) acetyl-CoA C) lactate D) pyruvate 4
A) NADP B) FADH2 C) ATP D) CO2 5
A) it cannot generate enough ATP B) it produces too much NH2 C) the end products are toxic to the producer D) it uses more energy than it produces 6
A) CO2 B) O2 C) ethanol D) lactate E) all of the above are products of fermentation 7
A) pyruvate B) glucose C) acetyl-CoA D) O2 E) CO2 8
A) 2% B) 3.5% C) 21.5% D) 50% E) 78.5% 9
A) glycolysis B) fermentation C) the oxidation of pyruvate D) the citric acid cycle E) electron transport and chemiosmosis 10
A) 2% B) 63% C) 14% D) 36% E) 32% 11
A) substrate-level phosphorylation B) chemiosmosis C) both generate the same amount of ATP D) neither generates any ATP 12
2 play in aerobic respiration?A) it plays no role B) it combines with acetyl-CoA at the start of the Krebs cycle C) it is given off as a by-product during the oxidation of pyruvate D) it combines with H2 O to help drive the formation of ATP E) it is the final electron acceptor at the end of the electron transport chain 13
2 is produced inA) glycolysis B) the oxidation of pyruvate C) the Krebs cycle D) the electron transport chain E) fermentation 14
A) glycolysis B) the oxidation of pyruvate C) the Krebs cycle D) all of the above E) none of the above 15
A) anaerobic B) autotrophs C) exergonic D) catabolic E) heterotrophs 16
A) glucose priming, cleavage and rearrangement, oxidation, ATP generation B) cleavage and rearrangement, glucose priming, ATP generation, oxidation C) glucose priming, oxidation, cleavage and rearrangement, ATP generation D) ATP generation, oxidation, glucose priming, cleavage and rearrangement E) oxidation, cleavage and rearrangement, ATP generation, glucose priming 17
A) glycolysis B) oxidation of pyruvate C) Krebs cycle D) fermentation E) chemiosmosis 18
A) make complex molecules from simpler ones B) break complex molecules into simpler ones C) occur only in autotrophs D) occur only in heterotrophs E) none of the above 19
A) O2 B) NAD+ C) acetyl-CoA D) ATP E) glucose 20
A) glyceraldehyde-3-phosphate (G3P) B) NAD+ C) FAD+ D) pyruvate dehydrogenase E) all of the above 21
A) out of the cell B) out of the mitochondria into the cell cytoplasm C) out of the mitochondrial matrix into the outer compartment of the mitochondria D) out of the cell cytoplasm into the matrix of the mitochondria E) out of the nucleus and into the mitochondria 22
2 results in the production of how many ATP molecules during aerobic respiration?A) 2 B) 3 C) 4 D) 18 E) 36 23
A) a corn plant B) a dog C) a yeast D) a bacterium E) all of the above 24
A) proteins B) glucose C) fatty acids D) alcohol E) water 25
A) glycolysis; cytoplasm B) fermentation; cytoplasm C) the Krebs cycle; matrix of the mitochondrion D) anaerobic respiration; cytoplasm E) the respiratory electron transport chain; cristae of the mitochondrion 26
2 . The cells were monitored. In a few minutes the radioactive oxygen atoms were present in which of the following compounds:A) carbon dioxide B) NADH and FADH2 C) water D) ATP E) lactic acid 27
A) becomes oxidized. B) passes the electrons directly to O2 which is reduced to water. C) pumps protons across the inner mitochondrial membrane. D) all of the above. E) a and b, but not c. 28
A) NAD+ B) pyruvate C) O2 D) lactic acid E) ATP 29
A) NADH and FADH2 are oxidized. B) the pH of the matrix increases. C) the electrons lose free energy. D) an electrochemical gradient is formed. E) all of the above. 30
A) True B) False 31
A) True B) False 32
A) an input of energy B) a high-energy phosphate group that is transferred directly to ADP C) a concentration gradient of protons D) the protein ATPsynthase E) all of the above 33
A) they are converted into glucose B) the enter their own pathways that are separate from the glucose metabolic pathways C) they are degraded completely into atoms before entering a pathway D) they are modified so that they can enter the glucose metabolic pathways E) both b and c 34
A) occurs through aerobic respiration B) is an extremely efficient method of acquiring energy by the cell C) requires oxygen D) involves substrate-level phosphorylation E) both a and c 35
A) pyruvate (present)-oxygen (present)-ATP levels (high) B) pyruvate (present)-oxygen (present)-ATP levels (low) C) pyruvate (present)-oxygen (absent)-ATP levels (high) D) pyruvate (absent)-oxygen (present)-ATP levels (low) E) pyruvate (absent)-oxygen (absent)-ATP levels (high) 36
A) 6 carbon dioxide molecules B) 2 pyruvates C) 1 glucose D) 2 lactates E) 2 PEP 37
A) ATP B) 2 ADP + 32 Pi C) 2 ATP D) 4 ADP + 34 Pi E) 4 ATP 38
A) 6 oxygen molecules B) 12 water molecules C) 12 oxygen molecules D) reduced cytochromes E) 6 oxygen + 12 water molecules 39
A) 4 carbon dioxide molecules B) 2 pyruvates C) 1 glucose D) 2 lactates E) 2 PEP 40
A) ATP B) 2 ADP + 32 Pi C) 2 ATP D) 4 ADP + 34 Pi E) 4 ATP 41
A) 6 oxygen molecules B) 12 water molecules C) 12 oxygen molecules D) reduced cytochromes E) 6 oxygen + 12 water molecules
2002 McGraw-Hill Higher Education