Question

In bryophytes and pteridophytes, transport of male gametes require

• A. Insects
  
• B. Wind
  
• C. Birds
  
• D. Water
  

Answer 1

The correct option is D Water


Introduction to gamete transfer in sexually reproducing organisms
In sexually reproducing organisms, the male and female gametes need to be brought in proximity in order to facilitate fertilisation or fusion of the gametes. In most organisms, except for a few algae and fungi, the male gamete is smaller and motile and travels down to meet the larger and non-motile female gamete. This transfer requires a medium through which the gametes can move. In seeded plants the small male gametes are non-motile and are transferred via agents such as water, air, wind, etc.

Transport of male gametes in bryophytes and pteridophytes
Bryophytes and pteridophytes are commonly present in damp, shady, and humid places which are surrounded with water. Thus, these plants utilise water as a medium for the transfer of their male gametes from the antheridium (male reproductive organ) to the archegonium (female reproductive organ. Birds, wind or insects do not help in the transfer of gametes in bryophytes and pteridophytes.

Final answer
(b) Water