NEET 2008
- Exam
- NEET
- Year
- 2008
- Subject
- Botany
- Chapter
- Sexual Reproduction in Flowering Plants
NEET 2008 · Botany · Sexual Reproduction in Flowering Plants
What does the filiform apparatus do at the entrance into ovule?
What does the filiform apparatus do at the entrance into ovule?
Options
- AIt guides pollen tube from a synergid to egg
- BIt helps in the entry of pollen tube into a synergid
- CIt prevents entry of more than one pollen tube into the embryosac
- DIt brings about opening of the pollen tube
Correct answer
B. It helps in the entry of pollen tube into a synergid
Step-by-step solution
It helps in the entry of pollen tube into synergid : Filiform apparatus is present at the micropylar end in synergid. It is a mass of finger like projections. It releases certain chemical substances which direct the path of pollen tube inside the synergid through micropyle (chemotropic effect)