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प्रश्न
What differences are there in number, structure, and activity of the male and female gametes in a man?
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उत्तर
| Male Gametes | Female Gametes |
| Number: Very large. | Normally one at a time. |
| Structure: A sperm is about 50-55 microns long with head, acrosome neck, and lashing tail. | It is spherical and non-motile. |
| Activity: With the help of a lashing tail, it moves actively towards the oviducts. | Passively carried from ovary to oviduct. |
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संबंधित प्रश्न
Write the location and function of the Sertoli cells in humans.
What happens in a boy’s body under the influence of hormones?
Draw a diagram of a mature human sperm. Label any three parts and write their functions.
Name the Following
The tubular knot fitting like a cap on the upper surface of the testes.
Write the answers to the questions by observing the figure.
- What does the above figure show?
- Write the names of parts A, B, C, D.
- Write the function of the part 'D'.
- How is semen formed?
Identify the INCORRECTLY labelled structure in the given diagram of the male reproductive system.
lf vasectomized man attempts to rape, then the presence of which of the following confirms it?
Sertoli cells are regulated by the pituitary hormone known as ______.
The process of formation of sperms is known as ______.
State very briefly the chief function of the following:
Sperm duct (vas deferens)
