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प्रश्न
Mention the importance of the position of the testes in humans.
उत्तर
The testes are positioned in such a way hanging out from the body in scrotal sac that provides optimal temperature 2°C to 3°C lower than internal body temperature for effective sperm production.
संबंधित प्रश्न
Explain the process of fertilization in human beings.
Why are testes located outside the abdominal cavity? What is responsible for bringing about changes in appearance seen in boys at the time of puberty?
Differentiate between Sperm duct and fallopian rube (function)
What name is given to the fusion of sperm and ovum?
What are the male and female gonads in human beings? Mention their functions.
Mention two functions of human ovaries.
Which structure in human female is equivalent to the vas deferens in the male?and in what respect the structures are equivalent?
The male gametes in a flower and in a human are produced respectively in :
(a) stigma and ovary
(b) anther and style
(c) ovary and testes
(d) anther and testes
X and Y are two human beings. The organ A in the reproductive system of X releases a mature gamete B once a month which goes into a tube-like structure C through a funnel-like opening. The organ D in the reproductive system of Y makes and releases gametes E which pass through a duct F and are introduced by an organ of Y, into the body of X. B and E fuse together in C to form a new cell G. The cell G divides repeatedly to form a ball of cells H which gets embedded in the lining of organ I of reproductive system of X where it grows and develops into a baby.
(a) Name (i) organ A, and (ii) gamete B.
(b) Write two names of tube-like structure C.
(c) Name (i) organ D, and (ii) gamete E.
(d) Write two names of duct F.
(e) Name (i) cell G (ii) ball of cells H, and (iii) organ I.
(f) Out of X and Y, which one is (i) male, and (ii) female?
Sketch and label human female reproductive system.
Is the woman responsible for sex-determination of child? Justify your answer.
Choose the correct answer:
When pregnancy does not occur, the life of corpus luteum is about _____________
Name the following:
Two accessory glands in the male reproductive system.
Define the following:
Sexual reproduction
What are the signs of puberty in human males and females?
Choose the Odd One Out:
The male homologue of the female clitoris is ____________.
______ is a lytic enzyme released by the sperm.
Freshly released human egg has ______.
