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NEET • BIOLOGY • NEURAL CONTROL AND COORDINATION

Neural control and coordination practice · Medium

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1 Medium

1 of 127

Remembering +4 | -1

How many laminae are present in the grey matter of spinal cord?

View answer and explanation

Correct option: D

Ten

Option D is correct. The grey matter of the spinal cord is organized into ten distinct laminae, known as Rexed laminae.

2 Medium

2 of 127

Remembering +4 | -1

In a resting neuron, the axonal membrane is more permeable for which of the following ions?

View answer and explanation

Correct option: B

{K^ + }

Option B (

{K^ + }

) is correct because the axonal membrane is more permeable to potassium ions (

{K^ + }

) in a resting neuron, contributing to the resting membrane potential.

3 Medium

3 of 127

Remembering +4 | -1

Which of the damaged cells cannot be repaired?

View answer and explanation

Correct option: B

Brain cells

Option B is correct. Brain cells, particularly neurons, have limited regenerative capacity, making it difficult to repair damaged brain tissue.

4 Medium

4 of 127

Remembering +4 | -1

The nerve cells exercise its control by sending electrical signals called

View answer and explanation

Correct option: D

Nerve impulses

Option D (Nerve impulses) is correct because nerve cells communicate using electrical signals specifically called nerve impulses.

5 Medium

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Remembering +4 | -1

A nerve impulse is transmitted from one neuron to another through the junctions called

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Correct option: C

Neurosynaptic junction

Option C (Neurosynaptic junction) is correct because a nerve impulse is transmitted from one neuron to another through a neurosynaptic junction, commonly referred to as a synapse.

6 Medium

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Understanding +4 | -1

Which of the following is correct in case of chemical synapses?
I. The membranes of the pre and postsynaptic neurons are separated by a gap called synaptic cleft
II. Chemicals called neurotransmitters are involved in the transmission of impulses
III. Impulse transmission in chemical synapse is faster than that across an electrical synapse
IV. Chemical synapses are rare in our system

View answer and explanation

Correct option: C

I and II

Option C (I and II) is correct because chemical synapses involve a synaptic cleft and neurotransmitters for impulse transmission.

7 Medium

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Analyzing +4 | -1

How many of the following are not included in the human hindbrain?
Medulla oblongata, Thalamus, Corpora qudrigemina, Pons, Cerebrum, Cerebellum

View answer and explanation

Correct option: B

Three

Option B (Three) is correct because Thalamus, Corpora quadrigemina, and Cerebrum are not part of the hindbrain.

8 Medium

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Understanding +4 | -1

Which is not a reflex action?

View answer and explanation

Correct option: B

Eye opening and closing

The correct answer is B (Eye opening and closing) because it can be a voluntary action, unlike the other options which are involuntary reflex actions.

9 Medium

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Analyzing +4 | -1

Assertion : The axonal membrane of the neuron
is more permeable to sodium ion

\left( {N{a^ + }} \right)

and nearly
impermeable to potassium

\left( {{K^ + }} \right)

.
Reason : In a resting state, neuron conducts
impulses.

View answer and explanation

Correct option: D

If both Assertion and Reason are false

Option D (If both Assertion and Reason are false) is correct because the axonal membrane is more permeable to potassium ions at rest and does not conduct impulses in a resting state.

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Analyzing +4 | -1

Assertion: Choroid layer is thick over the posterior two-third of the eye ball, but it becomes thin in the
anterior part.

Reason: Choroid layer contains blood vessels

View answer and explanation

Correct option: D

Assertion is false but reason is true

Option D is correct because the assertion is false; the choroid is thinner in the anterior part and thicker in the posterior part, and the reason is true; it contains blood vessels.

11 Medium

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Remembering +4 | -1

The correct sequence of meninges of brain from outside to inside is

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Correct option: A

duramater→arachnoid→piamater

Option A (duramater→arachnoid→piamater) is correct because the meninges, which protect the brain and spinal cord, are arranged in this order from the outermost to the innermost layer.

12 Medium

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Understanding +4 | -1

Function of ear ossicles in human is

View answer and explanation

Correct option: B

Collects the vibrations in the air which produce sound

Option C (To increase the efficiency of transmission of sound waves to the inner ear) is correct because the ear ossicles amplify sound vibrations as they transmit them from the tympanic membrane to the oval window.

13 Medium

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Remembering +4 | -1

Which converts short time memory into long time remembrance?

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Correct option: C

Thalamus

Option B is correct. The hippocampus plays a crucial role in converting short-term memories into long-term memories.

14 Medium

14 of 127

Understanding +4 | -1

Which pair of systems jointly coordinate and integrate all the activities of the organs, so that they function in a synchronized fashion?

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Correct option: C

Neural and endocrine system

Option C (Neural and endocrine system) is correct because these two systems work together to maintain homeostasis and coordinate bodily functions.

15 Medium

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Understanding +4 | -1

Which system jointly co-ordinates and regulates the physiological functions in the body?

View answer and explanation

Correct option: D

1 and 2

Option D (1 and 2) is correct because both the nervous system and the endocrine system coordinate and regulate physiological functions.

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16 Medium

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Remembering +4 | -1

Structurally what are olfactory nerve cells?

View answer and explanation

Correct option: D

Bipolar neurons

Option D (Bipolar neurons) is correct because olfactory nerve cells are structurally classified as bipolar neurons.

17 Medium

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Understanding +4 | -1

Select the correct statements

View answer and explanation

Correct option: A

Neurons regulates endocrine activity but not vice-versa

The correct answer is A because neurons can regulate endocrine activity, but the reverse is not always true; endocrine activity can influence, but not strictly regulate, neural activity.

18 Medium

18 of 127

Understanding +4 | -1

Read the following statements.
I.Preganglionic nerve fibres of III, VII, IX and X cranial nerves are a part of the parasympathetic nervous system
II.V,VII, IX and X cranial nerves are mixed nerves.
III.Trochlear nerves are the largest cranial nerves.
IV.Abducens nerves are motor nerves and originate from the Gasserian ganglia.
Which of the above statements are correct?

View answer and explanation

Correct option: B

I and II

Option B (I and II) is correct because preganglionic nerve fibers of III, VII, IX, and X cranial nerves are part of the parasympathetic nervous system, and V, VII, IX, and X cranial nerves are mixed nerves.

19 Medium

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Understanding +4 | -1

When we do physical exercises, the energy demand is increased for

View answer and explanation

Correct option: D

Maintaining an increased muscular activity

Option D (Maintaining an increased muscular activity) is correct because during physical exercise, the primary energy demand is to support the increased activity of muscles.

20 Medium

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Understanding +4 | -1

Which one of the following pairs of structures distinguishes a nerve cell from other types of cell?

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Correct option: A

Perikaryon and dendrites

Option A (Perikaryon and dendrites) is correct because these structures are unique to nerve cells and distinguish them from other cell types.

21 Medium

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Understanding +4 | -1

Pinna

View answer and explanation

Correct option: D

All of the above

Option A (Collects the vibrations in the air which produce sound) is correct because the pinna's primary function is to gather sound waves and channel them into the ear canal.

22 Medium

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Remembering +4 | -1

Yellow spot of eye is known for

View answer and explanation

Correct option: C

Preponderance of cones

Option C (Preponderance of cones) is correct because the yellow spot (macula lutea) and especially the fovea centralis within it, have a high concentration of cones, responsible for sharp central vision and color vision.

23 Medium

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Remembering +4 | -1

Reflex action is controlled by

View answer and explanation

Correct option: B

Autonomous nervous system

Option B (Autonomous nervous system) is correct because the autonomous nervous system controls involuntary actions, including reflex actions.

24 Medium

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Remembering +4 | -1

A projecting ridge, having hair cells, present at the swollen base of semicircular canals is known as

View answer and explanation

Correct option: D

Crista ampullaris

Option D (Crista ampullaris) is correct because the crista ampullaris is a sensory receptor located in the ampulla of each semicircular canal, containing hair cells that detect rotational movement.

25 Medium

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Remembering +4 | -1

In which of the following, Nissl’s granules are found in?

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Correct option: B

Nerve cells

Option B (Nerve cells) is correct because Nissl's granules, which are involved in protein synthesis, are found in the cytoplasm of nerve cells (neurons).

26 Medium

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Understanding +4 | -1

In which direction, cristae of rabbit ear helps in maintaining balance?

View answer and explanation

Correct option: B

Transverse position of longitudinal axis of semi circular canals

Option A (Circular position of longitudinal axis of semi circular canals) is incorrect. Option B (Transverse position of longitudinal axis of semi circular canals) is correct because the cristae ampullares are oriented to detect angular acceleration in different planes, which is achieved by their transverse positioning relative to the semicircular canals.

27 Medium

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Remembering +4 | -1

The functions of the organs/organ system in our body must be coordinated to maintain …….
Complete the given statement with reference to NCERT textbook

View answer and explanation

Correct option: B

Homeostasis

Option B (Homeostasis) is correct because the coordinated function of organs and organ systems is essential for maintaining a stable internal environment, which is homeostasis.

28 Medium

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Remembering +4 | -1

The system that transmits impulses from CNS to skeletal muscles is

View answer and explanation

Correct option: C

Somatic neural system

Option C (Somatic neural system) is correct because it is responsible for transmitting impulses from the CNS to skeletal muscles, enabling voluntary movements.

29 Medium

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Remembering +4 | -1

When we do physical exercises, the energy demand is

View answer and explanation

Correct option: A

Increased

Option A (Increased) is correct because physical exercise increases the body's metabolic rate and thus the demand for energy.

30 Medium

30 of 127

Understanding +4 | -1

Which one is correct about the physiology of eye?

View answer and explanation

Correct option: B

When light is shone in one eye both pupils constrict

Option B (When light is shone in one eye both pupils constrict) is correct because the pupillary light reflex causes both pupils to constrict when light is shone into either eye.

Revision notes and key takeaways

Review NEURAL CONTROL AND COORDINATION in your textbook or class notes, then use this set to check your understanding.

Key Takeaways

✓ This set contains 127 single-correct-answer MCQs on NEURAL CONTROL AND COORDINATION.
✓ Try each question before opening its answer. Read the explanation where one is available.
✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.

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