alleryIn the male testes, which cells secrete testosterone that initiates the process of spermatogenesis?
ASertoli cells
BLeydig cells
CGranulosa cells
DChromaffin cells
Answer & Solution
Correct answer: B. Leydig cells
1. The testes contain seminiferous tubules, Sertoli cells and Leydig cells.
2. Sertoli cells support and nourish the developing sperms.
3. Leydig (interstitial) cells secrete testosterone, which initiates spermatogenesis.
4. Granulosa cells are in the ovary and chromaffin cells in the adrenal medulla, so those are ruled out.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 17 Reproduction in Plants and Animals "Structure of Testes", p.256_
Keep practising Unit 5D: Organismal Reproduction & Life Cycles
Browse all Unit 5D: Organismal Reproduction & Life Cycles questions for AP Biology, or explore more Biology topics.
Related questions
Asexual reproduction differs from sexual reproduction because asexual reproductionInsect-pollinated flowers usually attract insects withIn wind-pollinated flowers, pollen grains are usuallyOnion is propagated vegetatively byBryophyllum reproduces vegetatively from itsPotato plants are propagated commercially byReproduction by formation of spores is seen inThe ovary of a flowering plant develops after fertilisation into