Question

In angiosperms, pollination occurs when

a. The male gametophyte attaches to the stigma
b. The male gametophyte is released from the male paint
c. The pollen grains begins to grown a pollen tube
d. One sperm from the pollen grain fuses with the egg
e. One sperm from the pollen grain fuses with the embryo sac

Answer 1

Pollination in angiosperms is the transfer of pollen from the anther to the stigma, followed by germination and growth of the pollen tube to enable double fertilization.

Step-by-step explanation:

In angiosperms, pollination occurs when pollen is transferred from the anther to the stigma of the same or a different flower. This is the first critical step towards fertilization and ultimately leads to the production of seeds. Following pollination, the pollen grain germinates on the stigma, and a pollen tube grows through the style towards the ovule. Through this tube, sperm cells are delivered to the ovule, where double fertilization occurs: one sperm cell fuses with the egg to form a diploid zygote, and the other fuses with two polar nuclei to form a triploid cell that develops into the endosperm. This unique process of double fertilization leads to the formation of the seed and eventually a new plant.