The part of the brain that acts as a relay station for sensory information is the: MCQ with Answer and Explanation

The part of the brain that acts as a relay station for sensory information is the:
A. Thalamus
B. Medulla
C. Cerebellum
D. Hypothalamus
Answer: Option A
Solution (By JKExamLibrary)
The thalamus, a paired structure in the diencephalon, processes and relays sensory information (except olfaction) to the cerebral cortex. It also regulates consciousness and alertness. The cerebellum coordinates movement, hypothalamus maintains homeostasis, medulla controls vital reflexes.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1
Which of the following is an example of an X-linked recessive disorder?
A. Sickle cell anemia
B. Hemophilia
C. Down syndrome
D. Cystic fibrosis

Correct Answer: Option B


Explanation:
Hemophilia A and B are X-linked recessive disorders caused by mutations in genes for clotting factor VIII or IX on the X chromosome. It predominantly affects males, while females are usually carriers. Down syndrome is an autosomal aneuploidy, cystic fibrosis and sickle cell anemia are autosomal recessive. X-linked disorders follow a characteristic pattern of inheritance.

This question belongs to: Science Biology
Question #2
The basic structural and functional unit of the nervous system is:
A. Neuron
B. Nephron
C. Axon
D. Dendrite

Correct Answer: Option A


Explanation:
The neuron is the nerve cell, the fundamental unit of the nervous system, responsible for receiving, processing, and transmitting electrochemical signals. It consists of a cell body (soma), dendrites, and axon. Axon and dendrite are parts of a neuron. Nephron is the unit of kidney. Neurons communicate via synapses using neurotransmitters.

This question belongs to: Science Biology
Question #3
Consider statements about microorganisms: 1. Rhizobium fixes atmospheric nitrogen. 2. Yeast is used in baking. 3. All bacteria are pathogenic. Which are correct?
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2 and 3

Correct Answer: Option A


Explanation:
Rhizobium is a symbiotic bacterium found in legume root nodules that fixes atmospheric nitrogen into ammonia. Yeast (Saccharomyces cerevisiae) undergoes anaerobic respiration, producing CO2 that leavens bread dough. The vast majority of bacteria are harmless or beneficial (e.g., gut flora, decomposers); only a small fraction are pathogenic to humans. Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology