PART A: Multiple Choice Identify the letter of the choice that best completes th
ID: 3507796 • Letter: P
Question
PART A: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question 1. The following molecules can be found at various stages during cellular respiration: carbon dioxide glucose glyceraldehyde pyruvate V. Which of the following sequences represents the above molecules in order from the largest to the smallest amount of chemical energy? a. ", l, V, IV, lll b. IlI, IV, V, I, II c. Ill, IV, l, v, 11 d. IlI, I, V, IV, II 2. Glycolysis can best be described as which of the following kinds of pathways? a. catabolic and synthetic b. glycolytic and aerobic c. aerobic and catabolic anaerobic and catabolic anaerobic and anabolic d. e. Glucose is slightly modified at the beginning of glycolysis. Which of the following modifications takes placé? a. addition of an atom of oxygen b. addition of a phosphate group c. removal of an atom of oxygen d. e. addition of a hydrogen removal of a molecule of water In which of the following forms is energy immediately made available for use by living cells? a. ATP b. glucose C. ADP d. fats e. starch 5. During aerobic cellular respiration, which of the following molecules Sates activates Krebs cycle? a. citrate b. pyruvate c. cytochrome oxidase d. acetyl coenzyme A e. carbon dioxide 6. At the end of glycolysis, most of the energy originally found in glucose is located in molecules of a. phosphoglyceraldehyde (PGAL)d. ATP b. reduced NAD c. pyruvate e. lactateExplanation / Answer
Answers
1. A
Glycolysis - glucose will break down and terns into carbondi oxide and water
Pyruvate oxygen - in the mitochondria carbon- molecules bind to coenzyme
Pyruvate
citric acid cycle - glyceraldehysde
Oxidative phospharelation - Glucose
2. D
Glycolysis will happen in the absence of oxygen so it is anerobic and glucose breaks down into two molecules of pyruvate and three molecules of carbon -dioxide
3. E
Glucose molecule is gradually broken down into carbon dioxide and water.
4. A
5. D
The molecules like glucose, fatty acids, and amino acids, are broken down and fed into the Krebs cycle, becoming oxidized to acetyl coenzyme A
6. B
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