KCET · BIOLOGY · STD 12 - 2. Human Reproduction
In the given diagram of human sperm, identify the functions of the labelled parts A, B and C.
- A A → Helps in penetration of sperm into ovum, B → Helps in movement of sperm, C → provides energy for the movement of sperms into the female reproductive tract.
- B A → Helps in penetration of sperm into ovum, B → Provides energy for the movement of sperm, C → Helps in movement of sperm.
- C A → Helps in movement of sperm, B → Helps in penetration of sperm into ovum, C → provides energy for the movement of sperms.
- D A → Provides energy for the movement of sperm, B → Helps in movement of sperm, C → Helps in penetration of sperm into ovum.
Answer & Solution
Correct Answer
(B) A → Helps in penetration of sperm into ovum, B → Provides energy for the movement of sperm, C → Helps in movement of sperm.
Step-by-step Solution
Detailed explanation
(B) A → Helps in penetration of sperm into ovum, B → Provides energy for the movement of sperm, C → Helps in movement of sperm.,
The major parts of a sperm are the heads, neck, middle piece and tail. (A) Helps in penetrating the ovum.
(B) The middle piece contains numerous mitochondria arranged in a spiral, which provide the energy (ATP) for locomotion of sperm to the site of fertilisation. (C) The tail helps in sperm movement.
The major parts of a sperm are the heads, neck, middle piece and tail. (A) Helps in penetrating the ovum.
(B) The middle piece contains numerous mitochondria arranged in a spiral, which provide the energy (ATP) for locomotion of sperm to the site of fertilisation. (C) The tail helps in sperm movement.
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