Question

In bryophytes fertilization takes place

• A. At low temp
• B. In dry condition
• C. In presence of water
• D. In above all situation

Answer 1

The correct option is C In presence of water

Bryophytes are described as amphibians of plant kingdom. Presence of water is essential for swimming the sperms to reach the archegonia for fertilization. The water is needed for dehiscence of antheridia, liberation of antherozoids, transfer of antherozoids from antheridia to archegonia, opening of archegonial neck, and the movement of antherozoids into the archegonial neck. The antherozoids are attracted towards the egg by chemotactic stimulus, which in bryophytes, is provided in the form of sugars. Antherozoids enter into archegonia and fertilize the egg.

Hence the correct option is C.