Which of the following are true statements about the reductive acetyl-CoA pathwa

Question

Which of the following are true statements about the reductive acetyl-CoA pathway and 3-hydroxypropionate cycle?

A) The 3-hydroxypropionate cycle is found in all domains of life.

B) In the 3-hydroxypropionate cycle, pyruvate can be formed, which can be used for biosynthesis.

C) The reducing agent in the reductive acetyl-coA pathway is NADPH.

D) The reductive acetyl-CoA pathway does not generate recycled intermediates.

E) During the reductive acetyl-CoA pathway, one molecule of CO2 is reduced to carbon monoxide and another CO2 molecule is reduced to formate, which is then further reduced to a methyl group.

Explanation / Answer

Answer c ,b , e are true

C. In fatty acid synthesis acety co A pathway the reducing agent is NADPH

B.In this pyruvate is released

E.CO 2 formed is fixed .

4H2 + 2CO2_-------------------CH3COOH + 2H2O

4H2+2CO2 ---------------------CH3COOH+2CO

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