Chapter 14 Testbank - Chapter 14 Glycolysis,...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 14 Glycolysis, Gluconeogenesis, and the Pentose Phosphate Pathway Multiple Choice Questions 1. Glycolysis Page: 528 Difficulty: 2 Glycolysis is the name given to a metabolic pathway occurring in many different cell types. It consists of 11 enzymatic steps that convert glucose to lactic acid. Glycolysis is an example of: A) aerobic metabolism. B) anabolic metabolism. C) a net reductive process. D) fermentation. E) oxidative phosphorylation. 2. Glycolysis Pages: 528-531 Difficulty: 1 The anaerobic conversion of 1 mol of glucose to 2 mol of lactate by fermentation is accompanied by a net gain of: A) 1 mol of ATP. B) 1 mol of NADH. C) 2 mol of ATP. D) 2 mol of NADH. E) none of the above. 3. Fates of pyruvate under anaerobic conditions: fermentation Page: 530 Difficulty: 1 During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be reoxidized to NAD + if glycolysis is to continue. The most important reaction involved in the reoxidation of NADH is: A) dihydroxyacetone phosphate glycerol 3-phosphate B) glucose 6-phosphate fructose 6-phosphate C) isocitrate α -ketoglutarate D) oxaloacetate malate E) pyruvate lactate
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Glycolysis, Gluconeogenesis, and the Pentose Phosphate Pathway 4. Fates of pyruvate under anaerobic conditions: fermentation Pages: 528-531 Difficulty: 2 If glucose labeled with 14 C in C-1 were fed to yeast carrying out the ethanol fermentation, where would the 14 C label be in the products? A) In C-1 of ethanol and CO 2 B) In C-1 of ethanol only C) In C-2 (methyl group) of ethanol only D) In C-2 of ethanol and CO 2 E) In CO 2 only 5. Glycolysis Pages: 531-538 Difficulty: 2 The conversion of 1 mol of fructose 1,6-bisphosphate to 2 mol of pyruvate by the glycolytic pathway results in a net formation of: A) 1 mol of NAD + and 2 mol of ATP. B) 1 mol of NADH and 1 mol of ATP. C) 2 mol of NAD + and 4 mol of ATP. D) 2 mol of NADH and 2 mol of ATP. E) 2 mol of NADH and 4 mol of ATP. 6. Fates of pyruvate under anaerobic conditions: fermentation Pages: 531-538 Difficulty: 3 In an anaerobic muscle preparation, lactate formed from glucose labeled in C-3 and C-4 would be labeled in: A) all three carbon atoms. B) only the carbon atom carrying the OH. C) only the carboxyl carbon atom. D) only the methyl carbon atom. E) the methyl and carboxyl carbon atoms. 7. Glycolysis Page: 530 Difficulty: 2 Which of the following statements is not true concerning glycolysis in anaerobic muscle? A) Fructose 1,6-bisphosphatase is one of the enzymes of the pathway. B) It is an endergonic process. C) It results in net synthesis of ATP. D) It results in synthesis of NADH. E) Its rate is slowed by a high [ATP]/[ADP] ratio. 171
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/14/2010 for the course BHC 3023 taught by Professor Harmen during the Spring '10 term at University of South Florida - Tampa.

Page1 / 11

Chapter 14 Testbank - Chapter 14 Glycolysis,...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online