Question

intermediate molecules of ADP. 48. Approximately how many molecules of ATP are produced from the complete oxidanono molecules of glucose (C6H1206) in aerobic cellular respiration? A) 2 B) 4 C) 15 D) 30-32 E) 60-64 49. In liver cells, the inner mitochondrial membranes are about five times the area of the out mitochondrial membranes. What purpose must this serve? A) It increases the surface area for glycolysis. B) It increases the surface area for the citric acid cycle. C) It increases the surface area for oxidative phosphorylation. D) It increases the surface area for substrate-level phosphorylation. 50. Brown fat cells produce a protein called thermogenin in their mitochondrial inner membrane. Thermogenin is a channel for facilitated transport of protons across the membrane. What will occur in the brown fat cells when they produce thermogenin? A) ATP synthesis and heat generation will both increase. B) ATP synthesis will increase, and heat generation will decrease. C) ATP synthesis will decrease, and heat generation will increase. D) ATP synthesis and heat generation will both decrease. 51. Yeast cells grown anaerobically can obtain energy by fermentation, which results in the producti, of B) ATP and lactate. C) ATP, CO2, and lactat E) ATP, CO2, and acetyl CoA. A) ATP, NADH, and pyruvate. MATP, CO2, and ethanol.

Answer 1

48) complete oxidation of glucose molecule via aerobic respiration produces around 30-32 ATPs so the number of ATPs produced from 2 glucose molecules is E) 60-64

49) proteins required for the electron transport chain and oxidative phosphorylation are located on the inner mitochondrial membrane, enzymes required for the TCA cycle is located in the mitochondrial matrix, the enzymes for the glycolysis is located on the cytosol, enzymes for the substrate-level phosphorylation is not found in the membrane so the answer is C) It increases the surface area for oxidative phosphorylation.

50) brown fat has thermogenin, it forms pores in the inner mitochondrial membrane, and it dissipates the H+ gradient across the inner mitochondrial membrane, the energy stored in the H+ gradient is used to make ATP from ADP and Pi, but thermogenin dissipates the H+ gradient so ATP cannot be synthesized, energy stored in the H+ gradient is released as heat so the answer is C) ATP synthesis will decrease and heat generation will increase.

51) yeat carries out alcohol fermentation in the absence of oxygen the pyruvate produced by the glycolysis is converted to ethanol and carbon dioxide, glycolysis produces 2 ATPs so the answer is D) ATP. CO2 and ethanol.