Neural Control and Coordination Practice Questions
Class 11 · Biology · 2331 free MCQs with instant results and detailed explanations.
2331
Total
688
Easy
1154
Medium
489
Hard
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Topics in Neural Control and Coordination
Central Nervous System
611
Neuron
551
Sensory Organs
592
Reflex Arc
577
Sample Questions from Neural Control and Coordination
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the primary function of a neuron?
A.
To transmit electrical impulses.
B.
To produce hormones.
C.
To store nutrients.
D.
To support cell structure.
Show Answer & Explanation
Correct Answer: A
Neurons are specialized cells responsible for transmitting electrical impulses throughout the nervous system, facilitating communication between different parts of the body.
Q2
Easy
Which part of the neuron is responsible for receiving signals from other neurons?
A.
Axon
B.
Dendrites
C.
Myelin sheath
D.
Cell body
Show Answer & Explanation
Correct Answer: B
Dendrites are the branched structures of a neuron that receive signals from other neurons, allowing communication within the nervous system.
Q3
Easy
What type of neuron carries signals away from the central nervous system?
A.
Sensory neurons
B.
Interneurons
C.
Motor neurons
D.
Efferent neurons
Show Answer & Explanation
Correct Answer: C
Motor neurons (or efferent neurons) are responsible for carrying signals away from the central nervous system to muscles and glands, facilitating movement and responses.
Q4
Medium
What is the primary function of a neuron?
A.
To transmit electrical signals
B.
To produce hormones
C.
To generate energy
D.
To transport nutrients
Show Answer & Explanation
Correct Answer: A
Neurons are specialized cells that transmit electrical signals throughout the body, facilitating communication between different parts of the nervous system.
Q5
Medium
Which part of the neuron is primarily responsible for receiving signals?
A.
Axon
B.
Dendrite
C.
Soma
D.
Myelin sheath
Show Answer & Explanation
Correct Answer: B
Dendrites are the branched extensions of a neuron that receive signals from other neurons, making them crucial for signal reception.
Q6
Medium
What is the role of the myelin sheath in neurons?
A.
To protect the neuron
B.
To facilitate faster signal transmission
C.
To generate neurotransmitters
D.
To increase energy production
Show Answer & Explanation
Correct Answer: B
The myelin sheath is an insulating layer around the axon of a neuron that increases the speed of electrical signal transmission.
Q7
Medium
Which ion is primarily responsible for the depolarization phase of an action potential?
A.
Potassium (K+)
B.
Sodium (Na+)
C.
Calcium (Ca2+)
D.
Chloride (Cl-)
Show Answer & Explanation
Correct Answer: B
During depolarization, sodium ions (Na+) flow into the neuron, causing the membrane potential to become more positive.
Q8
Hard
Which part of the neuron is primarily responsible for receiving signals from other neurons?
A.
Axon
B.
Dendrites
C.
Soma
D.
Myelin sheath
Show Answer & Explanation
Correct Answer: B
Dendrites are specialized structures that receive signals and information from other neurons and transmit them to the soma.
Q9
Hard
What is the role of the myelin sheath in neuronal function?
A.
To increase the speed of impulse conduction
B.
To store neurotransmitters
C.
To produce action potentials
D.
To connect neurons
Show Answer & Explanation
Correct Answer: A
The myelin sheath acts as an insulator and increases the speed of electrical impulses along the axon through saltatory conduction.
Q10
Hard
In what way do voltage-gated sodium channels function during an action potential?
A.
They open at resting potential
B.
They allow Na+ ions to flow out
C.
They open in response to depolarization
D.
They close before repolarization starts
Show Answer & Explanation
Correct Answer: C
Voltage-gated sodium channels open in response to a change in membrane potential during depolarization, allowing Na+ ions to rush into the neuron.
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Neural Control and Coordination — Class 11 Biology Practice Questions Online
This page contains 2331 practice MCQs for the chapter Neural Control and Coordination in Class 11 Biology. The questions are organized by difficulty — 688 easy, 1154 medium, 489 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 4 topics, giving you comprehensive coverage of the entire chapter.