Question

Choose the correct characteristic feature of the filiform apparatus.

• A. Synergids
• B. Aleurone cell
• C. Nucellar embryo
• D. Generative cell

Answer 1

The correct option is A

Synergids

The correct option is A.

Explanation for the correct option:

1. The filiform apparatus is a collection of finger-like wall extensions into the cytoplasm.
2. It is found in the micropylar region of the embryo sac synergies.
3. The filiform apparatus is responsible for guiding the pollen tube into the synergids.

Explanation for the incorrect options:

Option B:

1. Aleurone cells produce and secrete a variety of hydrolytic enzymes that break down endosperm components.
2. It provides nutrition to the developing barley embryo.

Option C:

1. The nucellar embryo is a type of seed reproduction found in a variety of plant species, including citrus fruits.
2. The nucellar embryo is a sort of apomixis in which nucellar embryos are generated from the ovule's nucellus tissue without the need for sexual reproduction or meiosis.

Option D:

1. The generative cell is produced during the microspore's first division and divides into two sperm cells in the pollen tube or pollen grain.

Final answer: The correct characteristic feature of the filiform apparatus is synergids.