Concept explainers
Interpretation:
Number of NTP molecules used in the conversion of glucose-6-phosphate to glucose is to be determined.
Concept introduction:
Gluconeogenesis is the process of conversion of lactic acid back into glucose. This process uses energy in the form of 6 NTP molecules, hence, it is endogenic in nature. This process is responsible for increasing the blood glucose level when glucose levels fall down in blood.
(b)
Interpretation:
Number of NTP molecules used in conversion of fructose-1,6-bisphosphate to glucose is to be determined.
Concept introduction:
Gluconeogenesis is the process of conversion of lactic acid back into glucose. This process uses energy in the form of 6 NTP molecules, hence, it is endogenic in nature. This process is responsible for increasing the blood glucose level when glucose levels fall down in blood.
(c)
Interpretation:
Number of NTP molecules used in the conversion of two molecules of oxaloacetate to glucose is to be determined.
Concept introduction:
Gluconeogenesis is the process of conversion of lactic acid back into glucose. This process uses energy in the form of 6 NTP molecules, hence, it is endogenic in nature. This process is responsible for increasing the blood glucose level when glucose levels fall down in blood.
(d)
Interpretation:
Number of NTP molecules used in the conversion of two molecules of dihydroxyacetone phosphate to glucose is to be determined.
Concept introduction:
Gluconeogenesis is the process of conversion of lactic acid back into glucose. This process uses energy in the form of 6 NTP molecules, hence, it is endogenic in nature. This process is responsible for increasing the blood glucose level when glucose levels fall down in blood.
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- 2. If glyceraldehyde-3-phosphate dehydrogenase in red blood cells is completely inhibited, which intermediates in glycolysis accumulate most? Please use the following equation and the provided information to explain your reasoning. AG=AG° + RTln [C] [D]d [A] [B]' Fructose 1,6-bisphosphate → Glyceraldehyde 3-phosphate + Dihydroxyacetone phosphate The standard free energy for the above reaction is: AG" = +23.9 KJ/mol T° = 298 R = 8.314 J mol-¹ K-1arrow_forward1. Why is the chemical logic behind the phosphorylation of glucose by hexokinase? a. So that we end the preparatory phase with 2 3-carbon compounds. b. to provide a substrate for phosphohexose isomerase. c. "Locks" Glucose in the cell. d. to decrease the ΔG of the next reaction. 2. What type of reaction does glyceraldehyde-3-phosphate dehydrogenase catalyze? a. isomerization b. group transfer c. oxidation d. dehydrationarrow_forwardRegarding phosphofructokinase, which of the following statements is true: a. Low [ATP] stimulates the enzyme, but fructose-2,6-bisphosphate inhibits. b. High [ATP] stimulates the enzyme, but fructose-2,6-bisphosphate inhibits. c. The enzyme is more active at low [ATP] than at high, and fructose-2,6-bisphosphate activates the enzyme. d. High [ATP] stimulates the enzyme, and fructose-2,6-bisphosphate activates.arrow_forward
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