Question

Draw a well-labelled diagram of L.S of a pistil of a flower showing the passage of growing of pollen tube up to its destination.

Answer 1

The diagram of passage of pollen tube into ovule is in the attachment and the pistil is described below :

The pistil is the main female reproductive portion of a flower. This structure has another name to, that is, carpel.

This structure called pistil has mainly three parts. These are -

i) Stigma

This is the landing site of the pollen grain. It lands on the stigma where under suitable conditions, the pollen grain gets germinated.

ii) Style

This is a long stalk like structure which connects stigma with the ovary.

iii) Ovary

This is the basal region of the pistil. It contains ovule which has the egg.

Answer 2

Answer :

Diagram in the picture