Question

The egg apparatus of angiosperm comprises

• A. an egg cell and two antipodals
• B. an egg cell and two synergids
• C. an egg cell and two polar nuclei
• D. an egg cell and the central cell

Answer 1

The correct option is B an egg cell and two synergids

A fully developed typical or polygonum type of embryo sac is a large and oval structure consisting of 7 cells and 8 nuclei.

Egg apparatus- this is a group of 3 cells situated at the micropylar end. The centrally located cell is known as the egg cell. On its sides are present two synergids. An egg cell has a large vacuole at its upper end and a prominent nucleus near its lower end. Synergids show of filiform apparatus attached to the upper wall. It is known to attract and guide the pollen tube. Each of the synergies has a vacuole at its lower end and the nucleus at its upper end.

So, the correct option is 'an egg cell and two synergids'