Reference no: EM132440247
Question 1: Which enzyme-catalyzed reactions are shared between the gluconeogenesis and glycolysis pathways? (Note: just provide the name of the enzyme that catalyzes each of the shared reactions).
Question 2: Why are some enzymes needed only in the gluconeogenesis pathway and not in the glycolysis pathway?
Question 3: Which one of the following reactions only occurs during gluconeogenesis (i.e., not during glycolysis)?
a. 1,3-bisphosphglycerate into 3-phosphoglycerate
b. Glucose 6-phosphate into fructose 6-phosphate
c. Oxaloacetate into Phosphoenolpyruvate
d. Phosphoenolpyruvate into Pyruvate
Question 4: An increase in glucagon levels can __________.
a. Promote the degradation of glycogen (i.e., glycogenolysis)
b. Occurs during the fasting state (starvation)
c. Promotes the synthesis of glycogen
d. A and B
Question 5: A high school girl who is self-conscious about her appearance has been fasting for several days to fit into a dress she intentionally bought a size too small for a school dance. Which of her organs/tissues is producing the glucose that is being synthesized through gluconeogenesis?
a. Red blood cells
b. Muscles
c. Liver
d. Brain
Question 6: Why do only some tissues (e.g., liver) contain the enzyme glucose-6- phosphatase?
Question 7: What are the main products of the pentose phosphate pathway, and how does the cell use them?
Question 8: How many molecules of ATP are produced during the metabolism of one (1) molecule of glucose through the pentose phosphate pathway?
Question 9: Which two (2) molecules are produced during the pentose phosphate pathway that are also produced during glycolysis?
Question 10: Describe two (2) specific things that make NADH and NADPH different from each other (Note: consider the structural and biological properties of the two molecules).