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प्रश्न
The diagram below represents two reproductive cells A and B. Study the same and then answer the questions that follow:
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- Identify the reproductive cells A and B.
- Name the specific part of the reproductive system where the above cells are produced.
- Where in the female reproductive system do these cells unite?
- Name the main hormones secreted by the (1) ovary (2) testes.
- Name an accessory gland found in the male reproductive system and state the function of its secretion.
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उत्तर
-
- Ovum
- Sperm
- Follicles of ovary → ovum, Seminiferous tubules in testes → sperm
- Fallopian tube
- (1) Oestrogen, Progesterone,
(2) Testosterone - The glands found in the male reproductive system are the prostate gland and the seminal vesicle.
Function of the prostate gland: The secretion of thin, milky, alkaline fluid enhances sperm motility.
Function of the Seminal Vesicle: The seminal vesicles produce an alkaline fluid. It is combined with sperm to produce spermatic fluid or semen.
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संबंधित प्रश्न
Describe placenta structure.
Give scientific reasons: When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.
Given below are diagrams showing the different stages in the process of fertilisation of an egg. in the human female reproductive tract.
Study the diagrams and answer the questions:
1) Arrange the letters given below each diagram in a logical sequence to show the correct order in the process of fertilisation.
2) Where does fertilisation normally take place? and What is ‘Implantation’ that follows fertilisation?
3) Mention the chromosome number of the egg and zygote in humans.
4) Explain the term ‘Gestation’. How long does Gestation last in humans?
5) Draw a neat, labelled diagram of a mature human sperm.
Where is the male gamete formed in humans?
Do all organisms give birth to individuals like humans?
What are the organs in humans which produce the gametes?
Explain why, fertilisation is possible if mating takes place during the middle of menstrual cycle.
Describe in brief the role of ureter in human male reproductive system.
Name the following:
Male and Female organs on specific individuals.
Gestation period in man

