The structure that produces cerebrospinal fluid is the: MCQ with Answer and Explanation

The structure that produces cerebrospinal fluid is the:
A. Subarachnoid space
B. Arachnoid villi
C. Dura mater
D. Choroid plexus
Answer: Option D
Solution (By JKSSB Mock Tests)
The choroid plexus, a network of ependymal cells and capillaries in the ventricles of the brain, continuously produces CSF by filtration and secretion. CSF circulates through ventricles and the subarachnoid space and is reabsorbed by arachnoid villi into the venous system. Dura mater is the outer protective membrane.

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Practice More Biology Questions

Question #1
The scientist who coined the term 'cell' was:
A. Robert Brown
B. Robert Hooke
C. Rudolf Virchow
D. Antonie van Leeuwenhoek

Correct Answer: Option B


Explanation:
Robert Hooke, in 1665, observed thin slices of cork under a compound microscope and saw box-like structures he named 'cells'. Leeuwenhoek observed live cells, Brown discovered the nucleus, Virchow proposed cells arise from cells.

This question belongs to: Science Biology
Question #2
Which of the following pollutants is responsible for Minamata disease?
A. Arsenic
B. Lead
C. Mercury
D. Cadmium

Correct Answer: Option C


Explanation:
Minamata disease is a neurological syndrome caused by severe mercury poisoning, first discovered in Minamata, Japan, due to industrial wastewater containing methylmercury that bioaccumulated in fish. Lead causes plumbism, cadmium causes Itai-itai disease, arsenic causes arsenicosis. Mercury affects the central nervous system, causing numbness, muscle weakness, and vision problems.

This question belongs to: Science Biology
Question #3
The part of the brain that coordinates voluntary muscle movements and maintains balance is the:
A. Thalamus
B. Medulla oblongata
C. Cerebellum
D. Cerebrum

Correct Answer: Option C


Explanation:
The cerebellum, located at the back of the brain, integrates sensory input and fine-tunes motor activity, posture, and equilibrium. The cerebrum handles conscious thought and voluntary actions, the thalamus relays sensory information, the medulla controls vital autonomic functions like breathing and heart rate.

This question belongs to: Science Biology