EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Textbook Question
Chapter 3, Problem 13TY
In which stage of cell respiration does oxygen play a role?
a. glycolysis
b. electron transport system
c. citric acid cycle
d. lactate production
e. transport of pyruvate into the mitochondria
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Your friend is researching cellular respiration in eukaryotes. When you visit their lab, you recognize that they are specifically looking in the cytosol. Which process of cellular respiration is your friend likely focusing their research on?
a.
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Glucose is converted to pyruvate in which stage of cellular respiration? a. glycolysis b. intermediate stage c. citric acid cycle d. electron transport system
Place the following steps of cellular respiration in the correct order by numbering them from 1 to 4. a. The Krebs cycle produces the energy carriers NADH, FADH2, and ATP. b. If oxygen levels are adequate, pyruvate is transported into the mitochondrion. If oxygen levels are very low, fermentation proceeds. c. Glucose is broken down to produce ATP and NADH. d. An electron transport chain produces ATP from ADP.
Chapter 3 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
Ch. 3 -
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9. What are the four stages of ATP production...Ch. 3 -
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- The enzymes of the citric acid cycle are located in a. Cytoplasm b. Endoplasmic reticulum c. Mitochondrial matrix d. Nucleusarrow_forwardThe complete catabolism of one molecule of C6H12O6 into carbon dioxide and water produces a larger amount of ATP in aerobic prokaryotes than it does in aerobic eukaryotes because aerobic prokaryotes: A. always produce ethanol rather than lactic acid as a byproduct B. generate more molecules of NADH during aerobic respiration C. have no transport costs to get NADH into mitochondria D. generate more molecules of FADH2 during aerobic respiration E. are able to use pyruvate as a substrate for fermentationarrow_forwardWhere would you expect to find pyruvate in a cell undergoing aerobic cellular respiration? which ones are true? a. Mitochondrial matrix b. Vesicle moving from the plasma membrane to a lysosome c. Cytosol d. Lumen of the Rough ERarrow_forward
- What carbon source can yeast cells metabolize to make ATP from ADP under anaerobic conditions? a. glucose b. ethanol c. lactic acid d. oxaloacetate e. methanolarrow_forwardPyruvate, formed from glycolysis, is generated in the: a. Cytosol b. Nucleus c. Mitochondrial matrix d. Inner mitrochondrial membranearrow_forwardWhich of the following statements about aerobic respiration is true? a. Oxygen is the final electron acceptor in the citric acid cycle. b. Coenzyme-A is a substrate in the reaction that generates a key reactant for the citric acid cycle. c. Redox reactions occur in the electron transport chain (ETC), but not during the citric acid cycle and not during glycolysis. d. The citric acid cycle is the main ATP producer in aerobic respiration.arrow_forward
- During cellular respiration, 60 molecules of CO2 were given off as waste. a. How many pyruvate molecules were produced in glycolysis? b. The total amount of ATP produced by complete cellular respiration would be? c. The amount of energy available (Net ATP) to cell as ATP would be?arrow_forwardA mutation has damaged the formation of oxaloacetate. What process will be impaired? a. electron transport chain b. citric acid cycle c. chemiosmosis d. ATP synthasearrow_forwardMost of the ATP produced during cell respiration is a by-product of: a. glycolysis b. citric acid cycle c. electron transport system d. lactate production e. anaerobic pathwaysarrow_forward
- The cell senses ATP is not being produced. What immediate effect will this have on the rate of glycolysis occurring in the cell? What will happen to the levels of pyruvate? A. Glycolytic rates will decrease: pyruvate levels will decrease B. Glycolytic rates will increase: pyruvate levels will increase C. Glycolytic rates will increase: pyruvate levels will decrease D. Glycolytic rates will decrease: pyruvate levels will increase 2. How will the cell shift its metabolic processes in response to the level of pyruvate and in order to produce ATP? A. It will shift from aerobic respiration to fermentation B. It will shift from aerobic respiration to anaerobic respiration C. It will continue with aerobic metabolism using oxygen in the cytosol to make ATP D. It will shift from anaerobic respiration to fermentation 3. Some of the symptoms the patient is experiencing are caused by acid-base imbalances in the extracellular fluid. Why would the patients blood become more acidic over a…arrow_forwardWhich of the following statements is true? A. The citric acid cycle occurs in the mitochondria matrix B. The citric acid cycle occurs in the cytosol C. Electron transport chain and ATP synthase are in the cytosol D. Oxidative phosphorylation occurs in the mitochondria matrixarrow_forwardIn which cellular sublocation do the reactions of glycolysis occur? A. the mitochondrial matrix B. the mitochondrial intermembrane space C. the cytosol D. the endoplasmic reticulumarrow_forward
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