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单选题 The ATP yield from glycolysis under anaerobic conditions is much smaller than that from the complete oxidation of glucose to CO2 under aerobic conditions. About ________ times as much glucose must therefore be consumed anaerobically as aerobically to yield the same amount of ATP
学科：Biochemistry 《生物化学》一 专业基础课（全英教学）
时间：2025-04-28 08:34:31
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题目1单选题
Glycolysis is a near-universal pathway by which a glucose molecule is oxidized to two molecules of _______, with energy conserved as ATP and NADHA. waterB. CO2C. pyruvateD. succinate
题目2单选题
All 10 glycolytic enzymes are in the __________, and all 10 intermediates are phosphorylated compounds of three or six carbonsA. cell membraneB. cytosolC. matrix of mitochondiraD. mitochondria membrane
题目3单选题
In the preparatory phase of glycolysis, ATP is invested to convert glucose to fructose 1,6-bisphosphate. The bond between ___________ is then broken to yield two molecules of triose phosphateA. C-2 and C-3B. C-3 and C-4C. C-4 and C-5D. C-5 and C-6
题目4单选题
In the payoff phase, each of the two molecules of glyceraldehyde 3-phosphate derived from glucose undergoes oxidation at C-1; the energy of this oxidation reaction is conserved in the form of ____________________ per triose phosphate oxidizedA. one NADH and one ATPB. one NADH and two ATPC. two NADH and one ATPD. two NADH and two ATP
题目5单选题
For each glucose molecule, two ATP are consumed in the preparatory phase and four ATP are produced in the payoff phase, giving a net yield of ___ ATP per molecule of glucose converted to pyruvateA. 2B. 3C. 4D. 6
题目6单选题
The human genome encodes ___ different hexokinases, all of which catalyze the same reactionA. 2 (I ― II)B. 3 (I ― III)C. 4 (I ― IV)D. 5 (I ― V)
题目7单选题
Two or more enzymes that catalyze the same reaction but are encoded by different genes are called ___________A. heterozymesB. homozymesC. isozymesD. ribozymes
题目8单选题
The ATP yield from glycolysis under anaerobic conditions is much smaller than that from the complete oxidation of glucose to CO2 under aerobic conditions. About ________ times as much glucose must therefore be consumed anaerobically as aerobically to yield the same amount of ATPA. 10B. 12C. 15D. 18
题目9单选题
In many types of tumors found in humans and other animals, glucose uptake and glycolysis proceed about ___ times faster than in normal, noncancerous tissuesA. 5B. 10C. 15D. 20
题目10单选题
The increase in glycolysis in cancer cells is achieved, at least in part, by increased synthesis of the glycolytic enzymes and of the plasma membrane transporters ___________________ that carry glucose into cellsA. GLUT1 and GLUT2B. GLUT1 and GLUT3C. GLUT1 and GLUT4D. GLUT1 and GLUT5
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