Free Neural Control And Coordination (Daily Quiz: 5) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Neural Control And Coordination (Daily Quiz: 5) Time:

Question-1

During the propagation of a nerve impulse, the action potential results from the movement of

(a)

(b)

(c)

(d)

Explanation:

Answer: (c)

Action potential is the change in electrical potential that occurs across a plasma membrane during the passage of a nerve impulse. As an impulse travels in a wave-like manner along the axon of a nerve, it causes a localized and transient switch in electric potential across the membrane from –60 mV (millivolts; the resting potential) to + 45 mV. It is due to the fact that the sodium channels open and the potassium channels remain closed. As a result, sodium channels permit the influx of Na+ by diffusion from extracellular fluid to intracellular fluid.


Question-2

Afferent nerve fibres carry impulses from

(a)

(b)

(c)

(d)

Explanation:

Answer: (c)

Afferent nerve fibres – sensory nerve fibres which carry senses from receptors to brain or spinal cord (CNS). Efferent nerve fibres – motor nerve fibres that carry orders or responses from CNS to effectors (muscles and glands).


Question-3

A person entering an empty room suddenly finds a snake right in front of the opening of door. Which one of the following is likely to happen in his neuro-hormonal control system?

(a)

(b)

(c)

(d)


Question-4

Identify A, B, C, D and E:

neural-control-and-coordination-neet-mcq-7-21-2

(a)

(b)

(c)

(d)


Question-5

Injury localized to the hypothalamus would most likely disrupt

(a)

(b)

(c)

(d)


Molecular Basis Of Inheritance

Quiz 1091

Biotechnology Principles And Processes

Quiz 1092

Biotechnology And Its Applications

Quiz 1093

Organisms And Populations

Quiz 1094

Ecosystem

Quiz 1095

NEET Biology Quiz

Topic Wise Quizzes

NEET Biology MCQ

Topic Wise Exercise

Today Quiz

Morphology Of Flowering Plants

This Week Quiz

Locomotion And Movement

This Month Quiz

Locomotion And Movement