Question

Choose the correct statement

• A. Chlorophyll-a is soluble in petroleum ether and shows maximum absorption peak at $453 \,nm$ and $642 \,nm$
• B. In chlorophyll-b, -$CH_ 3$ replaces $-CHO$ at $3-C$ of chlorophyll-a
• C. Chlorophyll-b is soluble in methyl alcohol and shows maximum absorption peak in $429 \,nm$ and $660\, nm$
• D. For biosynthesis of chlorophyll, raw materials required are succinyl Co-A and glycine

Answer 1

Answer: (D)

Chlorophyll-a is soluble in petroleum ether and shows maximum absorption peak at $465 \,nm$ and $665\, nm$ while chlorophyll-b is soluble in methyl alcohol and shows maximum absorption peak at $450$ and $640\, nm$. In chlorophyll-b, $CHO$ replaces $CH _{3}$ at $3 C - Chl - a$.