Question

The size of chlorophyll molecule is

• A. head 15 x 15 A, tail 25 A
• B. head 20 x 20 A, tail 25 A
• C. head 15 x 15 A, tail 20 A
• D. head 10 x 12 A, tail 25 A.

Answer 1

Answer: (C)

Chlorophyll are the magnesium porphyrin (head, 15 x 15 A) compounds. The porphyrin ring consists of four pyrrole rings joined together by CH bridges. A long chain of C atoms called as phytol (tail; 20 A) chain is attached to porphyrin ring.