Question
Botany Question on Economic importance of algae, fungi, lichen and bacteria
Heterocyst a thick-walled, pale-yellow, barrel-shaped structure found in blue-green algae, helps in
A
Defence
B
N2 fixation
C
CO2 fixation
D
Sulfur metabolism
Answer
N2 fixation
Explanation
Solution
The correct option is(B): N2 fixation