14) Substrate-level phosphorylation accounts for approximately what percentage o

Question

14) Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed by the reactions of glycolysis? A)0% B) 2% C) 38% D) 100% 15) Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP. Most of the energy from the original glucose molecule at that point in the process, however, is stored in the form of which of the following molecules? A) acetyl-CoA B) NAD+ C) pyruvate D) NADH 16) Which of the following statements about the electron transport chain is true? A) It is driven by ATP hydrolysis. B) It includes a series of hydrolysis reactions associated with mitochondral C) It consists of a series of redox reactions D) It occurs in the cytoplasm of both prokaryotic and eukaryotic cells. 17) Which of the following metabolic processes take place in the cytosol of a eukaryotic cell? A) glycolysis and fermentation B) fermentation and chemiosmosis C) oxidation of pyruvate to acetyl CoA D) citrie acid cycle 18) Which of the following statements is true of metabolism in its entirety in all organ V Metabolism depends on a constant supply of energy from food. isms? B) Mctabolism uses all of an organism's resources. the energy transtormation reactions in an organism. C) Metabolism consists of all D) Metabolism manages the increase of entropy in an organism. 19) A decrease in entropy is associated with which type of reaction? A) dehydration B) catabolic C) depolymerization D) hydrolysis 20) Which of the following statements is true for all exergonic A) The products have more total energy than the reactants. B) The reaction proceeds with a net release of free energy. C) The reaction goes only in a forward direction: all reactants will be converted to products, bu no products will be converted to reactants D) A net input of energy from the surroundings is required for the reactions to proceed.

Explanation / Answer

14) 100% because ths ATP formed in glycolysis is through substrate level of phosphorylation only.In glycolysis 4ATP molecule generate by this but 2 considered because 2are lost in preparatory phase of it.

15) NADH most of energy is stored in NADH molecule 6NADH molecule formedcby citric acid cycle.

16 )it involves a series of redox reaction.

17) Glycolysis and fermentation.

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