Formation of one molecule of glucose from pyruvate requires ____________ A) 4 ATP, 2 GTP and 2 NADHB) 3 ATP, 2 GTP and 2 NADHC) 4 ATP, 1 GTP and 2 NADHD) 2 ATP, 2 GTP and 2 NADH

Which enzyme catalyzes the conversion of pyruvate to oxaloacetate?A) Pyruvate carboxylaseB) Pyruvate dehydrogenaseC) Pyruvate kinaseD) Phosphofructokinase-1

Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by malonic acid, which resembles succinate but cannot be acted upon by succinate dehydrogenase. Increasing the ratio of succinate to malonic acid reduces the inhibitory effect of malonic acid. What is the purpose of using malonic acid in this experiment?

The mechanism in which the end product of a metabolic pathway inhibits an earlier step in the pathway is known as: A) metabolic inhibition. B) feedback inhibition. C) allosteric inhibition. D) noncooperative inhibition

Which glycolysis intermediate can transfer a phosphate to ADP to form ATP? A) 3-phosphoglycerate B) fructose-1,6-bisphophate C) pyruvate D) phosphoenolpyruvate

HK1 is a glucokinase, is restricted primarily to the liver and pancreas

Which of the following is true for the free energy change of a reaction? A) The actual free energy change is equal to the standard free energy change for the reaction B) If the reaction has a large positive standard free energy change, it will never occur C) If the reaction has a large negative standard free energy change, it is always irreversible D) The actual free energy change varies depending on the concentration of reactants and products

When blood sugar levels fall, glycolysis is halted in liver to allow ___________A) HomeostasisB) Anaerobic respirationC) Aerobic respirationD) Gluconeogenesis

Metabolism refers to: A) Pathways of chemical reactions that build compounds B) Glycolysis pathway C) The process of photosynthesis D) The entire network of chemical reactions involved in maintaining life and encompasses all of the sequences of chemical reactions that occur in the body.

Which of the following products cannot be directly formed from pyruvate? A) Acetaldehyde B) Ethanol C) Acetyl-CoA D) Lactic acid