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Human Reproduction
Structure of Sperm
2 questions from 2 papers, each with its answer.
- questions
- 2
- papers
- 2
- years asked, 2017–2026
- 1 of 10
- of Human Reproduction
- 1.72%
Appears in
Concepts tested
- Acrosome
- Sperm Morphology
All Questions
2025 1 question
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Match List-I with List-II.
Pick the matching item from Column II for each row.
Column I
- A. Head
- B. Middle piece
- C. Acrosome
- D. Tail
Column II
- I. Enzymes
- II. Sperm motility
- III. Energy
- IV. Genetic material
Correct answer: A → IV, B → III, C → I, D → II
A-IV, B-III, C-I, D-II.
The sperm head houses the haploid genetic nucleus (IV). The middle piece contains mitochondria producing ATP energy (III). The acrosome contains hydrolytic enzymes for fertilization (I). The tail provides flagellar motility (II).
2010 AIPMT-PRE 1 question
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Which one of the following statements about human sperm is correct?The head of the sperm contains an elongated haploid nucleus, the anterior portion of which is covered by a cap-like structure, the acrosome.
The acrosome is filled with enzymes (sperm lysins such as hyaluronidase and acrosin) that help in the fertilisation of the ovum.
These enzymes dissolve the egg envelopes (corona radiata and zona pellucida), allowing the sperm to reach the plasma membrane of the ovum.
So penetration is enzymatic, not by mechanical piercing, and the acrosome is neither functionless nor a sensory structure.
Hence the correct statement is that the sperm lysins in the acrosome dissolve the egg envelope, facilitating fertilisation.