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प्रश्न
Name the three main regions of the human sperm, and briefly mention the function of each.
उत्तर
- Head (Acrosome): The acrosome at the top of the head of the sperm secretes an enzyme (hyaluronidase), which facilitates entry of the sperm into the egg by dissolving the wall of the ovum.
- Middle Piece (Mitochondria): The mitochondria contained in the middle piece, provide energy (ATP) for the activity of the sperm to swim.
- Tail (Axial Filament): The tail makes lashing movements for propulsion.
संबंधित प्रश्न
State whether the following statement is true (T) or false (F):
A fertilised egg becomes a seed.
Give appropriate term of the following:
The attachment of developing zygote (blastocyst) on the uterine wall.
Name the following:
Organ where fertilization occurs.
Give the functions of the following:
Fallopian tube
The diagram given below is that of a developing human foetus in the womb. Study the same and answer the question that follow:
What term is given to the period of development of the foetus in the womb?
The figure given below represents the female reproductive system of a mammal.
What will happen if the part B on both sides gets blocked?
How is the fetus protected?
Give Reasons
The acrosome of sperm secretes an enzyme called hyaluronidase at the time of fertilization
Differentiate
Tubectomy and Vasectomy.
Match the pair:
| 'A' | 'B' | ||
| (1) | Male | (a) | 44 + XX |
| (b) | 44 + XY | ||
| (c) | 44 + YY |
