BIOCHEM EXAM QUESTION AND ANSWER ALREADY VERIFIED

In the reaction catalyzed by pyruvate carboxylase (the first reaction in gluconeogenesis), CO 2 is - activated by ATP enegy What is the metabolic logic that explains why liver cells contain the enzyme glucose-6-phosphatase but muscle cells do not? - The reason G-6-P is highly available in the liver is because that is where gluconeogenesis (which produces G-6-P) and glycogenolysis take place. glugoneogenesis needs the enzyme glucose-6-phosphotate, which is not found in muscle tissue. McArdle disease is due to a deficiency in muscle glycogen phosphorylase activity. The result of this deficiency is an inability to - form glucose-1-phosphate during the breakdown of glycogen Which enzyme class catalyzes the following pentose phosphate pathway reaction (note that there may be some missing reactants and products)? - oxioreductase Cytoplasmic levels of NADH must be maintained in order for gluconeogenesis to occur. What generates NADH for this pathway? - the movement of NADH equivalents from inside the mitochondria via malatetransport mage below shows a(n) ______ glycosyl bond - b-1,4 Because muscles lack receptors for glucagon, what hormone activates muscle glycogen phosphorylase? - adrenaline In the glycogenesis pathway, the role of the glucose-6-phosphate isomerization reaction is to - prepare the anomeric carbon for nucleophilic attack. What type of inhibitor is penicillin classified as? - suicide