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Chlorophyll-a and b differ in having

a)

Chlorophyll-a has a methyl group and chlorophyll-b has aldehyde group in position X

b)

Chlorophyll-ahas an aldehyde group and chlorophyll-b has a methyl group in position X

c)

Chlorophyll-a has a carboxyl group and Chlorophyll-b has an aldehyde group in position X

d)

Chlorophyll-a has an ethyl group and Chlorophyll-b has an aldehyde group in position X



Question ID - 4836 | SaraNextGen Top Answer

Chlorophyll-a and b differ in having

a)

Chlorophyll-a has a methyl group and chlorophyll-b has aldehyde group in position X

b)

Chlorophyll-ahas an aldehyde group and chlorophyll-b has a methyl group in position X

c)

Chlorophyll-a has a carboxyl group and Chlorophyll-b has an aldehyde group in position X

d)

Chlorophyll-a has an ethyl group and Chlorophyll-b has an aldehyde group in position X

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

Chlorophylls are magnesium porphyrin compounds. Chlorophyll-a ( ) and chlorophyll-b ( ), both consist of magnesium porphyrin head, which is hydrophilic and a phytol tail, which is lipophilic but chlorophyll-b differs from chlorophyll-a only in one of the functional groups bonded to porphyrin. Actually in chlorophyll-b, there is (aldehyde) group instead of (methyl) group at the third C-atom in second pyrrole ring.

127 votes


127