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[G] Chapter 7 Review Questions
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- 1Aerobic cellular respiration cannot occur without _____.Oxygen
- 2The C6H12O6 + 6O2 --> 36/38 ATP + 6CO2 +6 H20 reaction represents _____.Aerobic cellular respiration
- 3The energy efficiency of the aerobic cellular respiration reaction is _____.About 40% which is more efficient than most conversion rates
- 4NAD is _____.a coenzyme
- 5The molecule NAD _____. (Accepts)Accepts electrons and hydrogen atoms
- 6Which statement is true when NAD becomes NADh? NAD has _____. 1. Become Oxidized 2. Been Reduced 3. Lost Electrons 4. Lost Hydrogen Atoms2 . Been reduced
- 7Which statement is false regarding NAD? 1. It acts as a coenzyme 2. It contains the vitamin niacin. 3. It works in conjunction with dehydrogenases 4. It can accept hydrogen atoms 5. It cannot be used over and over again5. It cannot be used over and over again
- 8FAD and NAD are both _____.Adenine dinucleotides
- 9Glycolysis is _____ while the prep reaction, citric acid cycle, and ETC are _____.Anaerobic, aerobic
- 10The order of the major pathways and reactions of aerobic cellular respiration are _____.Glycolysis, prep reaction, citric acid cycle, electron transport chain
- 11Which of the following is not part of the aerobic cellular respiration pathway? 1. Glycolysis 2. Citric Acid Cycle 3. Calvin Cycle 4. ETC 5. Prep Reaction3. Calvin Cycle
- 12Glycolysis _____. (ATP)Produces a net gain of two ATP
- 13Glycolysis _____. (Location/Oxygen)Takes place outside the mitochondria and does not use oxygen.
- 14Glycolysis is likely to have evolved before the Citric Acid Cycle and ETC because _____.It is found in all living organisms.
- 15During glycolysis _____. (Location)The reactions occur in the cytoplasm.
- 16The starting molecule for glycolysis is _____.Glucose
- 17Which of the following is needed for glycolysis to occur? 1. ADP 2. Glucose 3. NAD 4. ATP 5. 2,3,45. 2,3,4
(Glucose, NAD, ATP) - 18Which is a correct association of mitochondrion structure and respiration? 1. Matrix :: ETC 2. Cristae :: Prep Reaction 3. Matrix :: Citric Acid Cycle 4. All Correct 5. None correct3. Matrix :: Citric Acid Cycle
- 19Fermentation _____. (Products)Produces a net of two ATP.
- 20Compared to aerobic respiration, fermentation ______. (Need)Is essential to humans when we need a rapid burst of energy.
- 21Muscles undergo fermentation when _____.No oxygen is available
- 22Breathing heavily after running is your body's way of _____.Repaying oxygen debt
- 23The critical factor driving yeasts to use fermentation to metabolize sugar is _____.The lack of oxygen
- 24What happens to the lactate that is the result of fermentation in the muscles? 1. It triggers ongoing heavier breathing to provide oxygen for muscles. 2. much of the lactate is transported to the liver where it is converted to pyruvate. 3. Some lactate converted to pyruvate is converted back to glucose 4. Some lactate converted to pyruvate is completely respired 5. All of the above5. All of the above
- 25One cause of muscle soreness is _____.Lactic acid fermentation
- 26Pyruvate is converted to a 2 carbon acetyl to coenzyme A (CoA) and CO2 is given off, thus connecting glycolysis to the citric acid cycle.The prep reaction
- 27Which is NOT correct about the prep reaction? 1. It connects glycolysis to the Citric Acid Cycle. 2. CO2 is given off. 3. Pyruvate is converted to a 2 carbon acetyl group 4. NAD+ goes to NADH+H as acetyl CoA forms. 5. The reaction occurs once per glucose molecule.5. The reaction occurs once per glucose molecule.
- 28The molecule that is found at the beginning and end of the citric acid cycle is _____.Citric Acid
- 29Which pathway in aerobic respiration will produce ATP, NADH2 and carbon dioxide?Citric acid cycle
- 30Which of the following will produce CO2 in aerobic cellular respiration? 1. Glycolysis 2. Prep reaction 3. Citric acid cycle 4. ETC 5. Both 2 and 35. Both 2 and 3
- 31Which of the following statements is NOT true? 1. The end product of glycolysis is pyruvate. 2. The citric acid cycle begins and ends with pyruvate. 3. NADH2 will eventually produce 3 ATP. 4. Aerobic respiration of glucose has only 3 major sub pathways 5. Aerobic respiration uses oxygen and releases carbon dioxide2. The Citric acid cycle begins and ends with pyruvate.
- 32For the complete respiration of one molecule of glucose, the citric acid cycle must turn a total of _____.Two times
- 33In the citric acid cycle _____. (Product)CO2 is formed
- 34Which of the following is NOT a product, or end result, of the citric acid cycle? 1. Carbon Dioxide 2. Pyruvate 3. NADH+H 4. ATP 5, FADH22. Pyruvate
- 35The number of ATPs produced directly as a result of two turns of the citric acid cycle is _____.2
- 36The greatest contributor of electrons to the ETC is _____.Citric Acid Cycle
- 37The ETC functions within the _____.Mitochondria
- 38The final receptor for hydrogen ions in aerobic cellular respiration is _____.Oxygen
- 39How could we slow down the ETC's production of ATP?1. Limit the amount of oxygen
2. Reduce ADP available by reducing ATP use
3. Reduce synthesis of NAD and FAD
4. Add NADH reductase inhibitor - 40Which molecules pass high-energy electrons into the ETC?NADH and FADH2
- 41The carriers of the ETC are located _____.On the cristae of the mitochondria.
- 42The largest number of ATP molecules are produced in which part of the respiration reaction?ETC
- 43What is the name of the process that adds the third phosphate to an ADP molecule using the flow of hydrogen ions?Chemiosmosis
- 44Glucose breakdown yields about ____% of the energy of glucose in ATP molecules.40
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