A) protective
B) reproductive
C) nutritive
D) respiratory
Correct Answer: C
Solution :
Tapetum is the innermost layer of the wall of pollen sac. The tapetum is nutritive in function. The tapetal cells are multinucleate and contain ubisch bodies. Epidermis is the outermost layer of the wall of pollen sac. It is protective in function. During the development of anther the archesporial initial. Each archesporial initial divides into an outer primary parietal cell and inner primary sporogenous cell. The primary sporogenous cells divide to produce a mass of sporogenous cell or microsporocytes. Each microspore mother cell of microsporocyte dividemeiotically to form four haploid microspores. Respiration takes place in cells of the tissue i.e., cells of tapetum, epidermis, middle layer, endothecium etc.
You need to login to perform this action.
You will be redirected in
3 sec
