gluconeogenesis, glycogen metabolism, and the pentose phosphate pathway and their roles in glucose metabolism. Based on the topics answer each of the following questions.
- 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). - Why are some enzymes needed only in the gluconeogenesis pathway and not in
the glycolysis pathway? - Which one of the following reactions only occurs during gluconeogenesis (i.e.,
not during glycolysis)? - 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? - Why do only some tissues (e.g., liver) contain the enzyme glucose-6-
phosphatase? - What are the main products of the pentose phosphate pathway, and how does
the cell use them? - How many molecules of ATP are produced during the metabolism of one (1)
molecule of glucose through the pentose phosphate pathway? - Which two (2) molecules are produced during the pentose phosphate pathway
that are also produced during glycolysis?
9.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).