The inner wall of pollen grain is called ____A_____ and it is made up of ____B___.

Q. The inner wall of pollen grain is called _________ and it is made up of _______.

Q. Pollen grain has a prominent two layered wall. The inner wall

Q. Choose the correct statement(s) regarding pollen grains.
I. Pollen grains are the male gametes of the flowering plant.
II. Pollen grain has a prominent two-layered wall.
III. The outer thick wall of pollen grain is called exine and the inner thin wall is called intine.
IV. The hard outer layer called the exine is made up of sporopollenin which is one of the most resistant organic materials known.

Q. Wall of a mature pollen grain consists of:

Q. Based on the given excerpt, answer the given question.

Stamen is regarded as a microsporophyll that possesses microsporangia which have microspore mother cells that give rise to microspores. The cells of sporogenous tissues undergo meiotic division to form microspore tetrad. Microspore is present in the bilobed structure called anther. A male gametophyte is a gamete producing haploid phase in a plant. In angiosperms, it is the pollen grains that are regarded as gametophytes.

The inner wall of pollen grain is called ____A_____ and it is made up of ____B___.
[1 mark]