Question
Biology Question on Photosynthesis in higher plants
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
head 15 x 15 A, tail 20 A
Explanation
Solution
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.