SCI260 – Introduction to BiochemistryLesson 5In this week’s class, we discussed gluconeogenesis, glycogen metabolism, and thepentose phosphate pathway and their roles in glucose metabolism. Based on the topicsdiscussed in Lecture #5, please answer each of the following questions.1. Which enzyme-catalyzed reactions are shared between the gluconeogenesis andglycolysis pathways? (Note: just provide the name of the enzyme that catalyzeseach of the shared reactions).2. Why are some enzymes needed only in the gluconeogenesis pathway and not inthe glycolysis pathway?3. Which one of the following reactions only occurs during gluconeogenesis (i.e.,not during glycolysis)?a. 1,3-bisphosphglycerate into 3-phosphoglycerateb. Glucose 6-phosphate into fructose 6-phosphatec. Oxaloacetate into Phosphoenolpyruvated. Phosphoenolpyruvate into Pyruvate4. 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 glycogend. A and B5. A high school girl who is self-conscious about her appearance has been fasting forseveral days to fit into a dress she intentionally bought a size too small for aschool dance. Which of her organs/tissues is producing the glucose that is beingsynthesized through gluconeogenesis?a. Red blood cellsb. Musclesc. Liverd. Brain6. Why do only some tissues (e.g., liver) contain the enzyme glucose-6-phosphatase?7. What are the main products of the pentose phosphate pathway, and how doesthe cell use them?8. How many molecules of ATP are produced during the metabolism of one (1)molecule of glucose through the pentose phosphate pathway?9. Which two (2) molecules are produced during the pentose phosphate pathwaythat are also produced during glycolysis?10. Describe two (2) specific things that make NADH and NADPH different from eachother (Note: consider the structural and biological properties of the twomolecules).You may use your textbook and/or the internet to assist you. You will earn 10 points forcorrectly answering each question (maximum points earned = 100 points).