Question

h) Fill in the blanks in the following: [5] A mature pollen grain is a cell with a double wall, the outer _____________ and the inner _____________. The nucleus divides into _____________ and tube nucleus. A _____________ grows out of the pollen grain by breaking through its exine. The pollen tube grows through the stigma and the style by dissolving the tissues with the help of enzymes and reaches the ovary where it enters the ovule through the ______________.

Answer 1

Answer:

A mature pollen grain is a cell with a double wall, the outer membrane and the inner membrane. The nucleus divides into and tube nucleus. A _____________ grows out of the pollen grain by breaking through its exine. The pollen tube grows through the stigma and the style by dissolving the tissues with the help of enzymes and reaches the ovary where it enters the ovule through the ______________.