Chapter Exam

Chapter 6: Control and Coordination — Online MCQ Test

Q: What is the structural and functional unit of the nervous system?

Answer: A. Neuron — A neuron is a specialised nerve cell that receives and transmits information in the nervous system.

Q: The central nervous system in humans consists of:

Answer: A. Brain and spinal cord — The central nervous system is made up of the brain and spinal cord, which process and coordinate responses.

Q: At a synapse, the nerve impulse is passed from one neuron to the next mainly through:

Answer: B. Chemical substances — At the synapse, chemicals are released from the end of one neuron and start an impulse in the next neuron.

SCIENCE · CLASS 10 · Andhra State Board

Practice Chapter 6: Control and Coordination with a free chapter-wise online MCQ test for Andhra State Board CLASS 10 SCIENCE. This chapter covers: Nervous system Neuron Brain Spinal cord Reflex action Hormones Endocrine glands Coordination Tropic movement Stimulus Response. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 6: Control and Coordination — Important Questions & Answers (FAQ)

Frequently asked questions from Andhra State Board CLASS 10 SCIENCE — Chapter 6: Control and Coordination, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the structural and functional unit of the nervous system?

A. Neuron ✓
B. Nephron
C. Hormone
D. Synapse

Answer: A. Neuron
A neuron is a specialised nerve cell that receives and transmits information in the nervous system.

The central nervous system in humans consists of:

A. Brain and spinal cord ✓
B. Brain and nerves
C. Spinal cord and muscles
D. Nerves and receptors

Answer: A. Brain and spinal cord
The central nervous system is made up of the brain and spinal cord, which process and coordinate responses.

At a synapse, the nerve impulse is passed from one neuron to the next mainly through:

A. Blood pressure
B. Chemical substances ✓
C. Bone movement
D. Direct muscle contraction

Answer: B. Chemical substances
At the synapse, chemicals are released from the end of one neuron and start an impulse in the next neuron.

Which statement correctly compares nervous and hormonal communication?

A. Nervous messages travel through neurons, while hormones travel through blood ✓
B. Hormonal messages travel only through neurons
C. Nervous coordination uses only hormones
D. Both systems always produce equally fast responses

Answer: A. Nervous messages travel through neurons, while hormones travel through blood
Nervous coordination uses electrical impulses through neurons, while hormones are chemical messengers carried by blood.

A student says, 'All reflex actions are controlled only by the brain because the brain is the main control centre.' Which option best evaluates this statement?

A. Incorrect, because many reflex actions are coordinated by the spinal cord for a faster response ✓
B. Correct, because the spinal cord has no role in responses
C. Correct, because receptors send signals only to the cerebrum
D. Incorrect, because reflex actions are controlled by endocrine glands only

Answer: A. Incorrect, because many reflex actions are coordinated by the spinal cord for a faster response
Many reflex actions are processed through the spinal cord, allowing quick responses before conscious awareness by the brain.