9 uring glycolysis, glucose is catabolized to two molecules of pyruvate. Most of
ID: 218381 • Letter: 9
Question
9 uring glycolysis, glucose is catabolized to two molecules of pyruvate. Most of the potential energy contained in glucose is a. transferred to ADP, forming ATP b. transferred directly to ATP c. retained in the two pyruvates. d. stored in the NADH produced e. used to phosphorylate fructose to form fructose 6-phosphate. 22. Starting with one molecule of glucose, the energy-containing products of glycolysis a a. 2 NAD+, 2 pyruvate, and 2 ATP b. 2 NADH, 2 pyruvate, and 2 ATP. c. 2 FADH2, 2 pyruvate, and 4 ATP d. 6 CO2, 2 ATP, and 2 pyruvate. e. 6 CO2, 30 ATP, and 2 pyruvate. 23.Carbon dioxide (CO2) is released during which of the following stages of cellular respiration? a. glycolysis and the oxidation of pyruvate to acetyl CoA b. oxidation of pyruvate to acetyl CoA and the citric acid cycle c. the citric acid cycle and oxidative phosphorylation d. oxidative phosphorylation and fermentation e. fermentation and glycolysis 24.In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of a. ATP, CO2, and ethanol (ethyl alcohol). b. ATP, CO2, and lactate c. ATP, NADH, and pyruvate. d. ATP, pyruvate, and oxygen. e. ATP, pyruvate, and acetyl CoA.Explanation / Answer
21c) retained in the two pyruvates
Since it is a catabolic relation ,energy is released
Energy release is used to form ATP
22b) 2NADH, 2pyruvate and 2ATP
These are high energy molecules
Energy released during catabolism is used to produce these molecules
23)b) oxidation of pyruvate to acetyl co enzyme A and citric acid cycle
Oxidation of pyruvate happens in the mitochondrial matrix of cells
In citric acid apart from CO2, 6NADH2, 2FADH2 and 2ATP molecules are produced
24)a) ATP, CO2 and ethanol
This is called anaerobic pathway of celular respiration
It involves glycolysis but it is not followed by oxidation,kreb cycle and electron transport chain
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