Short answerModerate1 mark
6(a)
State two functions of:
Testis
Topic: Functions of the testis
Previous-year question practice database
Answer
Exam answer
- It produces the male gametes, the SPERMS, in the seminiferous tubules.
- It secretes the hormone TESTOSTERONE from the Leydig (interstitial) cells, which controls the male secondary sexual characteristics.
Explanation
The testis does TWO jobs through TWO different structures, and naming both structures is what distinguishes a full answer: SEMINIFEROUS TUBULES — make the SPERMS LEYDIG CELLS — make the HORMONE Swapping them is the commonest error.
It is therefore both an EXOCRINE organ (releasing sperms through a duct) and an ENDOCRINE one (releasing testosterone into the blood).
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