Which of the following is a precursor of prot | vedclass

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(B) The biosynthesis of chlorophyll begins with the formation of $5$-aminolevulinic acid $(ALA)$.In plants,$ALA$ is synthesized from glutamic acid,but

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Succinyl $CoA$

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(B) The biosynthesis of chlorophyll begins with the formation of $5$-aminolevulinic acid $(ALA)$.In plants,$ALA$ is synthesized from glutamic acid,but in many organisms,it is formed from the condensation of glycine and Succinyl $CoA$.Succinyl $CoA$ is a key intermediate in the citric acid cycle and serves as a fundamental precursor for the porphyrin ring structure,which is the core component of chlorophyll and protochlorophyll molecules.Therefore,Succinyl $CoA$ is considered a precursor in the pathway leading to protochlorophyll synthesis.

Which of the following is a precursor of protochlorophyll?

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Which enzyme is required for the following conversion?
Pyruvic acid + $CoA + NAD^+ \longrightarrow$ Acetyl $CoA + CO_2 + NADH + H^+$

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$A$: Succinyl $CoA$ is the precursor of pyrrole group-containing compounds.
$R$: Succinyl $CoA$ is an intermediate of the $TCA$ cycle.

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