In the male reproductive system, the spermatozoa are stored and mature in the:
A. Vas deferens
B. Seminal vesicles
C. Prostate gland
D. Epididymis
Answer: Option D
Solution (By JKSSB Mock Tests)
The epididymis is a coiled tube on the posterior surface of the testis where spermatozoa undergo maturation and are stored until ejaculation. Sperm acquire motility here. Seminal vesicles and prostate gland secrete seminal fluid. Vas deferens transports sperm from epididymis to ejaculatory duct. Testes produce sperm and testosterone. Sperm maturation includes gaining ability to fertilize.
Explanation:
Peristalsis is a wave-like series of muscular contractions and relaxations that propels food through the digestive tract. Segmentation mixes contents in the intestine, emulsification breaks fat globules, mastication is chewing.
Explanation:
The loop of Henle creates a concentration gradient in the medulla, enabling water reabsorption and concentrated urine. Urine is formed in kidneys, the unit is nephron, ureter connects kidney to bladder.
Explanation:
Apoptosis is a highly regulated and organized process of programmed cell death that occurs in multicellular organisms. It is crucial for development, maintaining tissue homeostasis, and eliminating damaged or infected cells. Unlike necrosis (accidental cell death), apoptosis does not cause inflammation and involves cell shrinkage and fragmentation.
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