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Chapter 24: Q35P (page 1125)

Which carbon atoms of glucose end up as a carboxyl group in pyruvate?

Short Answer

Expert verified

The carbon C-3 and C-4 of glucose end up as a carboxyl group in pyruvate.

Step by step solution

01

Mechanism of conversion of glucose to pyruvate

The mechanism of conversion of glucose to pyruvate is given below:

The conversion D- glucose converts into D- fructose using C-1 and C-6 carbons.

The D-fructose is then converted into dihydroxyacetone and D- glyceraldehyde.

D-glyceraldehyde converted into pyruvate show that C-3 and C-4 carbon participate in carboxyl group formation.

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Most popular questions from this chapter

Do the calculation showing that at pH 7.4

a.the charge on ADP is -2.8. b. the charge on the alkyl phosphate is -1.8.

UDP- galactose- 4- epimerase converts UDP- galactose to UDP- glucose. The reaction requires NAD+ as a coenzyme.

a. Propose a mechanism for the reaction.

b. Why is the enzyme called an epimerase?

UDP-galactose UDP- glucose

What coenzyme is required to convert pyruvate to acetaldehyde?

Why does the OH group add to the 尾-carbon rather than to the 伪-carbon in the second reaction in the 尾-oxidation of fats?

Explain why the conversion of pyruvate to lactate is a reversible reaction, but the conversion of pyruvate to acetaldehyde is not reversible.
See all solutions

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