Question

What plants have motile sperm?

Answer 1

Plants also reproduces by asexual and sexual reproduction. Sexual reproduction in flowering plants occurs through the process of pollination. The parent plant has male and female gametes. These gametes combine to form zygotes by the process of fertilization.

Complete answer:
Plants can reproduce by both asexual and sexual method. Flowering plants reproduce by sexual method by the process of fertilisation. The genetic material combines together to produce an offspring. The male sex organs are called as stamens and the female sex organs are called as pistils. Anther is a part of stamen which contains pollen.
There are two types of pollination in plants:
1. Self pollination: This process occurs when the pollen of the same plant fertilizes with it’s own ovules.
2. Cross pollination: This process occurs when wind or pollen move from one plant and fertilize with another plant of the same species.
The advantage of cross pollination is that it promotes genetic diversity. There are some plants which prevent self-pollination like the development of pollen or ovule at different times.
Male reproductive cell which is known as sperm is in male plant. Animals produce male sex cell with tail known as sperm. Flowering plants produce non-motile gametes known as pollen. Red algae and fungi produce non motile sperm cells known as spermatia.
Some ferns and some gymnosperms have motile sex cells known as sperms.

Note:
Pollen is produced in the male cone of a conifer or other gymnosperm's microsporangia, or in the anthers of an angiosperm flower's anthers. Pollen grains have a wide range of shapes, sizes, and surface markings that are unique to each species (see electron micrograph, right). Pine, fir, and spruce pollen grains have wings.