MedBiochemistry Exam 2 Review Quiz And Answers 2023/2024 A+

MedBiochemistry Exam 2 Review Quiz And Answers 2023/2024 A+ The alpha-ketoglutarate dehydrogenase enzyme - ANSWER-Has the same coenzymes, identical mechanisms, and same E3 subunit to pyruvate dehydrogenase Glycolysis is thermodynamically favorable, gluconeogenesis is not - ANSWER-False Glycolysis alone results in a NET gain of ____ ATP - ANSWER-2 How do runiminant animals digest cellulose? - ANSWER-They live symbiotically with microorganisms that secrete cellulase an enzyme that breaks down the otherwise indigestable beta1-- 4 linkages In ATP synthase - ANSWER-Proton translocation causes a rotation of the F0 subunit and the central shaft y. Then, conformational changes within all three alphabeta pairs promotes condensation of ADP and Pi into one pair Pyruvate kinase is inhibited by the presence of - ANSWER-Alanine In the citric acid cycle,_____ are activators and _____ are inhibitors - ANSWER-NAD+ and AMP; NADH and ATP In the insulin-signaling pathway - ANSWER--Insulin stimulates the activity of hexokinase -Insulin activates glycogen synthase -Phosphorylation inactivates glycogen synthase -Insulin increases glucose import into muscle Continues...