describe function of:
a. seminal vesicle
b.polar nuclie
c.osmostic pressure
Answers
Explanation:
a. The seminal vesicles are two small glands that store and produce the majority of the fluid that makes up semen. During ejaculation, the fluid from the seminal vesicles is expelled into the ejaculatory duct where it can then move on to mix with sperm and other reproductive fluids.
b. The polar nuclei are the two nuclei situated at the central position of the embryo sac. They together fuse with the male nucleusother than the one who fuses the egg. After fusion the polar nuclei form endosperm which acts as the food supply unit for the seeds in dormancy.
c. Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. It is also defined as the measure of the tendency of a solution to take in pure solvent byosmosis.
Answer:
(i)The seminal vesicles are two small glands that store and produce the majority of the fluid that makes up semen. During ejaculation, the fluid from the seminal vesicles is expelled into the ejaculatory duct where it can then move on to mix with sperm and other reproductive function.
(ii)Botany. either of two female haploid nuclei, in the embryo sac of flowers, that fuse to produce a diploid nucleus, which combines with a male nucleus to form endosperm.
(iii)Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. It is also defined as the measure of the tendency of a solution to take in pure solvent by osmosis.