Choose the correct statement.

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(D) Chlorophyll-$a$ is the primary pigment and is soluble in petroleum ether. It shows maximum absorption peaks at approximately $430 \ nm$ and $662 \

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For biosynthesis of chlorophyll,raw materials required are succinyl $CoA$ and glycine.

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(D) Chlorophyll-$a$ is the primary pigment and is soluble in petroleum ether. It shows maximum absorption peaks at approximately $430 \ nm$ and $662 \ nm$.Chlorophyll-$b$ is an accessory pigment and is soluble in methyl alcohol. It shows maximum absorption peaks at approximately $453 \ nm$ and $642 \ nm$.In the molecular structure of chlorophyll-$b$,the methyl group $(-CH_3)$ present at the $3-C$ position in chlorophyll-$a$ is replaced by an aldehyde group $(-CHO)$.Therefore,the statement regarding the biosynthesis of chlorophyll using succinyl $CoA$ and glycine is the correct biological fact,as these are the precursors for the porphyrin ring synthesis.

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