The structure that provides nutrients to the sperm and forms seminal fluid is the: MCQ with Answer and Explanation

The structure that provides nutrients to the sperm and forms seminal fluid is the:
A. Prostate gland and seminal vesicles
B. Epididymis
C. Vas deferens
D. Testis
Answer: Option A
Solution (By JKSSB Mock Tests)
Seminal vesicles produce a fructose-rich fluid (energy for sperm), and the prostate gland adds a milky, alkaline fluid to form semen. The testis produces sperm, epididymis stores them, vas deferens transports.

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Practice More Biology Questions

Question #1
The fossil Archaeopteryx provides evidence for the evolutionary link between:
A. Reptiles and mammals
B. Reptiles and birds
C. Fish and amphibians
D. Amphibians and reptiles

Correct Answer: Option B


Explanation:
Archaeopteryx lithographica, a Jurassic fossil, exhibits features of both reptiles (teeth, bony tail, claws) and birds (feathers, wings), supporting the theory that birds evolved from theropod dinosaurs. It is a classic transitional fossil. Tiktaalik links fish and amphibians, cynodonts link reptiles and mammals.

This question belongs to: Science Biology
Question #2
Consider the following statements about the nervous system:
1. Motor neurons carry impulses from the CNS to effectors.
2. Sensory neurons carry impulses from receptors to the CNS.
3. Interneurons are found only in the peripheral nervous system.
Which of the above is/are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1, 2, and 3
D. 1 and 3 only

Correct Answer: Option A


Explanation:
Motor (efferent) and sensory (afferent) neurons are correctly described. Interneurons are found in the CNS, not PNS. So 3 is incorrect.

This question belongs to: Science Biology
Question #3
Growth hormone is secreted by which part of the pituitary?
A. Anterior lobe
B. Intermediate lobe
C. Posterior lobe
D. Hypothalamus

Correct Answer: Option A


Explanation:
Growth hormone (somatotropin) is produced by the anterior pituitary. It promotes growth of bones, muscles, and other tissues. Deficiency causes dwarfism; excess causes gigantism or acromegaly.

This question belongs to: Science Biology