73) Study the coupled reaction depicted in the diagram below and answer the adja

Question

73) Study the coupled reaction depicted in the diagram below and answer the adjacent questions in reference ONLY to the reaction you see here. Clearly print the answer to each question below in the boxes. (6 points) a) What are all the products of this b) What are all the substrates for c) What is the name of the enzyme d) Based on the name of this coupled reaction? this coupled reaction? that catalyzes this reaction? Isocitrate enzyme, briefly describe what is going on in this coupled reaction? NADH socitrate dehydrogenase co2 What will the NADH produced here be used for under aerobic conditions? (BE AS SPECIFIC AS POSSIBLE) e) a-ketoglutarate | f) This coupled reaction is part of what specific metabolic pathway?

Explanation / Answer

a) Products are substances that have been produced (or yielded) by the reaction. Hence, here, we see that the products are: NADH, CO2, & -ketoglutarate.
b) Substrates are substances that are required (generally just present or actually consumed) by the reaction. Hence, here, we see that the substrates are: Isocitrate & NAD+.
c) The name of the enzyme is: Isocitrate dehydrogenase.
d) Based upon the name of the enzyme, in this coupled reaction, a hydrogen is being removed as per the name hydrogenase.
e) The NADH produced will be used to produce high energy electrons during aerobic resporation in the electron transport chain.
f) This coupled reaction is part of the metabolic pathway called the TCA cycle.

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