2025Q2(iii)(e)The Reproductive System

SequencingHard1 mark

2(iii)

Arrange the terms in each group in the correct order. Write them in a logical sequence beginning with the term that is underlined.

Sperm duct, SEMINIFEROUS TUBULE, Epididymis, Efferent ducts. (Begin with: Seminiferous tubule)

Topic: Path of the sperm

Previous-year question practice database

Answer

Exam answer

Seminiferous tubule → Efferent ducts → Epididymis → Sperm duct

Explanation

This traces a sperm from where it is made to where it leaves the testis: SEMINIFEROUS TUBULES — sperms are PRODUCED here EFFERENT DUCTS — carry them out of the testis (efferent means "carrying away") EPIDIDYMIS — a long coiled tube where sperms are STORED and mature, gaining the ability to swim SPERM DUCT (vas deferens) — carries them onward towards the urethra

THE WORD EFFERENT is the clue that settles the middle of the sequence: it means carrying away from, so those ducts must come immediately after the site of production. (Its opposite, AFFERENT, means carrying towards — the same pair appears in the nervous system, where afferent nerves carry impulses to the brain.)

Note also that the VAS DEFERENS is what is cut in a vasectomy, which is why sperms can no longer reach the semen.

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