Bio305 Exam Questions And Answers (Verified And Updated)

Bio305 Exam Questions And Answers (Verified And Updated) Anabolic pathways usually involve ____. Answers: a. Reduction of Metabolites b. Release of PPi c. Production of ATP d Release of CO2 - answera Diffusion of compounds - e.g. ions, atoms, or molecules - down a gradient is ___ because it ___. Answers: a. Endergonic; does not involve bond formation. b. Exergonic; produces heat. c. Exergonic; increases entropy. d. Exergonic; separates like charges - answerc _____is a high energy compound because its hydrolysis involves conversion of a thioester with poor pi overlap into an oxygen ester, which has good pi overlap. Answers: a. Pyruvate b. Acetyl CoA c. NADH d. FADH2 - answerb Conversion of NADH to NAD+ is ___ because it ___. Answers: a. Exergonic; separates like charges. b. Exergonic; increases the number of polar bonds. c. Exergonic; is driven forward by LeChatelier's Principle. d. Exergonic; increases charge delocalization. - answerd A net product of catabolism is Answers: a. NADH b. sugar, e.g. glucose c. PPi d. ATP - answerd In the absence of O2, glucose is converted to ___ in glycolysis and then __ during fermentation: Answers: a. Pyruvate; Acetyl CoA b. G3P; Acetyl CoA c. Acetyl CoA; Citric acid d. Pyruvate; Lactate or ethanol and CO2 - answerd Which of the following is an anabolic (anabolism) pathway? Answers: a. Gluconeogenesis b. Glycolysis c. Pyruvate Dehydrogenation (PDH) d. Beta-oxidation of fatty acids - answera A metabolite common to oxidation of both glucose and fatty acids is: Answers: a. DHAP b. Acetyl CoA c. G3P d. Pyruvate - answerb Reactions in which either CO2 or PPi are produced tend to be very exergonic because: Answers: a. Their concentrations quickly decrease, driving the reactions forward due to LeChatelier's Principle. b. The bond energies of the products are much lower than those of the reactants. c. Reactions coupled to their production involve reduction of the metabolite. d. Reactions coupled to their production involve oxidation of the metabolite. - answera In the presence of O2, glucose is converted to ___ during glycolysis and then __ in order to be used in the Citric Acid Cycle: Answers: a. Pyruvate; Citric Acid b. Pyruvate; Acetyl CoA c. G3P; pyruvate d. Acetyl CoA; CoA - answerb Which of these is associated with production of ATP during glycolysis? Answers: a. Coversion of PEP to Pyruvate b. Phosphorylation of glucose c. Conversion of DHAP to G3P d. Conversion of 2,3 BPG to PG - answera