Multipolar neurons are

(1) One axon and two or more dendrites

(2) One dendrites and two or more axon

(3) Multiple dendrites and no axon

(4) No dendrites and multiple axon

Subtopic:  Nervous System |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Unipolar neuron means

(1) Cell body with one axon only

(2) Cell body with dendrite only

(3) Only cell body

(4) An axon and dendrite with a cell body

Subtopic:  Nervous System |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The gaps between two adjacent myelin sheath are called

(1) Nodes of Ranvier

(2) Axon terminal

(3) Synaptic knob

(4) Schwan cell

Subtopic:  Nervous System |
 95%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

Unmyelinated nerve fibres are found in

(1) Autonomous

(2) Somatic Neural systems

(3) Both A and B

(4) CNS

Subtopic:  Nervous System |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Myelinated nerve fibres are found in

(1) Cranial nerves

(2) Spinal nerves

(3) Both A and B

(4) Not in CNS

Subtopic:  Nervous System |
 89%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Neurons are excitable cells because

(1) Their membranes are in unpolarized state

(2) There membranes are very light to create channels

(3) They have got neurotransmitters

(4) Their membranes are in polarized state

Subtopic:  Origin of Resting Membrane Potential |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

The membrane of neuron is polarized because

(1) Different kind of lipids are there over membrane

(2) Different kinds of ion channels are there in membrane

(3) These ion channels are selectively permeable to different ions

(4) Both B and C

Subtopic:  Origin of Resting Membrane Potential |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

When neuron is resting, which of the following is false with respect to that

(1) It is not conducting any impulse

(2) Axonal membrane is more permeable to potassium ions

(3) Axonal membrane won't allow any flow of sodium ions across it

(4) Membrane is impermeable to negatively charged proteins

Subtopic:  Origin of Resting Membrane Potential | Action Potential |
 56%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following conditions are not true across resting membrane?

(1) Axoplasm has more number of Potassium ions

(2) Axoplasm has less number of sodium ions

(3) High Concentration of negatively charged proteins in fluid outside axoplasm

(4) Both B and C

Subtopic:  Origin of Resting Membrane Potential |
 73%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

Ionic gradients across the resting membrane are maintained by

(1) Active transport of ions

(2) RMP

(3) Impulse or stimulus

(4) Both A and B

Subtopic:  Origin of Resting Membrane Potential |
 53%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh