Question

What does the Filiform apparatus do at the entrance into the ovule?

• A. It brings about the opening of the pollen tube.
• B. It prevents the entry of more than one pollen tube into the embryo sac
• C. It helps in the entry of pollen tube into a synergid.
• D. It guides the pollen tube from a synergid to an egg.

Answer 1

The correct option is C

It helps in the entry of pollen tube into a synergid.

The correct option is C.

Explanation of the correct answer:

1. The filiform device is a finger-like projection consisting of an enclosed core of microfibrils in a sheath.
2. Synergids are present in the embryo sac, and it enters the ovule sac through the micropyle.
3. The filiform apparatus resembles the transfer cells meaning the movement of metabolites at short distances.
4. The function of the filiform apparatus is that it helps in leading the pollen tubes into the synergids.

Final answer: The Filiform apparatus helps in the entry of pollen tube into a synergid at the entrance into the ovule.