Science (086) — AI-generated practice question

Blocking vas deferens: The vas deferens carries sperms from the testes to the urethra. If it is blocked, sperm transfer is prevented, so sperms cannot reach the egg and fertilisation does not occur.

Blocking fallopian tube: The fallopian tube carries the egg from the ovary to the uterus. If it is blocked, the egg cannot travel to the site of fertilisation, so sperm and egg cannot meet.

One concern: Although surgical methods are safe in the long run, surgery itself can cause infections and other complications if not performed properly.

Source: Reproductive Health, Chapter 7, Section 7.3.3(d)

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• The examiner expects one clear mechanical reason for each structure (1 mark each) — focus on what the structure carries and what blocking it prevents.
• The concern must come from the textbook: "infections and other problems if not performed properly." Do not invent side-effects not mentioned in the passage.
• Keep each point concise; this is a 3-mark answer, so ~25–30 words per point is enough.