Neural Control And Coordination Multiple Choice Question and Answers

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Neural Control And Coordination Multiple Choice Question and Answers

Question 1. Receptor sites for neurotransmitters are present on—

  1. Pre-synaptic membrane
  2. Tips of axons
  3. Post-synaptic membrane
  4. Membranes of synaptic vesicles

Answer: 3. Membranes of synaptic vesicles

Question 2. Myelin sheath is produced by—

  1. Astrocytes and Schwann Cells
  2. Oligodendrocytes and Osteoclasts
  3. Osteoclasts and Astrocytes
  4. Schwann Cells and Oligodendrocytes

Answer: 4. Schwann Cells and Oligodendrocytes

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Question 3. Good vision depends on adequate intake of carotene-rich food.

  1. Vitamin A derivatives are formed from carotene.
  2. The photopigments are embedded in the membrane discs of the inner segment.
  3. Retinal is a derivative of Vitamin A.
  4. The retina is a light-absorbing part of all visual photopigments.

Options:

  1. 1,3,4
  2. 1,3
  3. 2,3, and 4
  4. 1,2

Answer: 1. 1,3,4

Question 4. Photosensitive compound in the human eye is made up Of—

  1. Opsin and Retinal
  2. Opsin and Retinol
  3. Trunsducin and retinene
  4. Guanosine and Retinol

Answer: 1. Opsin and Retinal

Read and Learn More WBCHSE Multiple Choice Question and Answers for Class 11 Biology

Question 5. Choose the correct statement.

  1. Nociceptors respond to changes in pressure.
  2. Meissner’s corpuscles are thermoreceptors.
  3. Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to the light stimulus.
  4. Receptors do not produce graded potentials.

Answer: 3. Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to the light stimulus.

Question 6. In the mammalian eye, the ‘fovea’ is the center of the visual field, where—

  1. More rods than cones are found
  2. The high density of cones occurs but has no rods
  3. The optic nerve leaves the eye
  4. Only rods are present

Answer: 2. High density of cones occur, but has no rods

Question 7. Destruction of the anterior horn cells of the spinal cord would result in loss of—

  1. Integrating impulses
  2. Sensory impulses
  3. Voluntary motor impulses
  4. Commissural impulses

Answer: 3. Voluntary motor impulses

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Question 8. Stimulation of a muscle fiber by a motor neuron occurs at—

  1. The neuromuscular junction
  2. The transverse tubules
  3. The myofibril
  4. The sarcoplasmic reticulum

Answer: 1. The neuromuscular junction

Question 9. Which one of the following statements is not correct?

  • Retinol is the light-absorbing portion of visual photopigments
  • In the retina, the rods have the photopigment rhodopsin, while, cones have three different photopigments
  • Retinol is a derivative of vitamin C
  • Rhodopsin is the purplish red protein present in rods only

Answer: 3. Retinol is a derivative of vitamin C

Question 10. Which excitatory neurotransmitter is involved in the transmission of impulses at the neuromuscular junction?

  1. Epinephrine
  2. Serotonin
  3. Acetylcholine
  4. Glycine

Answer: 3. Acetylcholine

Question 11. Which area of the cerebral cortex is responsible for the

  1. Broca’s area
  2. Wernicke’s area
  3. Premotor area
  4. Association area of sensory cortex

Answer: 2. Wernicke’s area

Question 12. Which one of the following statements is true for ‘Motor cortex’?

  • It is located in the frontal lobe of the cerebral cortex.
  • It contains pyramidal cells.
  • It is responsible for all visual functions.
  • It is essential for our thought process.
  • It stimulates wakefulness.

It regulates voluntary muscular movements. Select the correct answer using the codes given below.

  1. 1,2,3 And 4
  2. 2,3,4 and 5
  3. 2,4,5 and 6
  4. 1,2,4 and 6

Answer: 4. 1,2,4 and 6

Question 13. The statoacoustic receptor responds to changes in the—

  1. Light and pressure
  2. Pressure and touch
  3. Pain and pressure
  4. Sound and equilibrium

Answer: 4. Sound and equilibrium

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Question 14. Select the correct statement regarding the Schwann cells.

  1. Surround axon of myelinated nerve fiber
  2. Support muscle fibers.
  3. Found in the Haversian system of bones.
  4. From the basement membrane of the epithelium.

Answer: 1. Surround axon of myelinated nerve fiber

Question 15. Which of the following statements is wrong regarding the conduction of nerve impulses?

  1. In a resting neuron, the axonal membrane is more permeable to K+ ions and nearly impermeable to Na+ ions.
  2. The fluid outside the axon has a high concentration of Na+ and a low concentration of K+ in a resting neuron.
  3. Ionic gradients are maintained by Na+-K+ pumps across the resting membrane which transport 3 Na+ ions outwards for 2K+ ions into the cell.
  4. Resting potential is the electrical potential difference across the resting membrane.

Answer: 5. Resting potential is the electrical potential difference across the resting membrane.

Question 16. A neuron is polarised only when the outer surface of the axonal membrane possesses a negative charge and its inner surface is positively charged. Color blindness is due to defects in—

  1. Cones
  2. Rods
  3. Rods and cones
  4. Rhodopsin

Answer: 1. Cones

Question 17. Which one of the following does not act as a neurotransmitter?

  1. Acetylcholine
  2. Glutamic acid
  3. Epinephrine
  4. Tyrosine

Answer: 4. Tyrosine

Question 18. Which cranial nerve has the maximum branches?

  1. Auditory
  2. Trochlear
  3. Trigeminal
  4. Vagus

Answer: 4. Vagus

Question 19. The myelin sheath around the axon is produced by which type of neuroglial cells?

  1. Satellite glial cells
  2. Radial glial cells
  3. Dendrocytes
  4. Schwann cells

Answer: 4. Schwann cells

Question 20. Choose the functions of the sympathetic nervous system.

  1. Constricts bronchi and pupil of the eye
  2. Increases heart rate, relaxes bronchi
  3. Decreases heart rate, increases peristalsis
  4. Dilates blood vessels stimulate salivary glands Which option is correct for the correctly matched groups for column 1, column 2, and column 3?

Answer: 2. Increases heart rate, relaxes bronchi

Question 21. Which option is correct for the correctly matched groups for column 1, column 2, and column 3?

Biology Class 11 Chapter 20 Neural Control And Coordination Multiple Choice Question 21

  1. 1-3-1, 2-4-2, 3-1-4, 4-2-3
  2. 1-2-4, 2-1-2, 3-3-1, 4-4-2
  3. 1-4-2, 2-2-2, 3-1-1, 4-1-4
  4. 1-4-1, 2-3-2, 3-2-3, 4-1-3

Answer: 1. 1-3-1, 2-4-2, 3-1-4, 4-2-3

Question 22. Which of the following options is correct for statements ‘X’ and ‘Y’? Statement X: Immediately after repolarisation, the ionic imbalance is created on both sides of the nerve fiber.

  • Statement Y: During repolarisation K+ ion channel opens up and the K+ ion moves on the inner side of the plasma membrane.
  • Statements X and Y are correct and Y is not correct for X
  • Statements X and Y are correct and Y is correct for X
  • Statement X is correct and statement Y is incorrect
  • Statement X is incorrect and statement Y is correct

Answer: 3. Statement X is correct and statement Y is incorrect

Question 23. The part of the brain where the center for hunger and thirst is located in—

  1. Cerebrum
  2. Hypothalamus
  3. Cerebellum
  4. Medulla oblongata

Answer: 2. Hypothalamus

Question 24. The reflex arc, which is made of two neurons is known as—

  1. Monosynaptic reflex arc
  2. Disynaptic reflex arc
  3. Polysynaptic reflex arc
  4. Asynaptic reflex arc

Answer: 1. Monosynaptic reflex arc

Question 25. The following is the scheme showing the path of the reflex arc. Identify the different labelings 1,2,3,4,5 and Fin the reflex arc.

Biology Class 11 Chapter 20 Neural Control And Coordination Multiple Choice Question 25

  1. 1—Stimulus, 2-Effector,3—Motor nerve, 4-Sensory nerve,5—Receptor 6-Response
  2. 1—Stimulus, 2-Receptor,3—Motor nerve, 4-Sensory nerve,5—Effector 6-Response
  3. 1—Stimulus, 2-Effector,3—Sensory nerve, 4-Motor nerve,5—Receptor 6-Response
  4. 1—Stimulus, 2-Receptor, 3—Motor nerve, 4-Sensory nerve,5—Effector 6-Response

Answer: 4. 1—Stimulus, 2-Receptor, 3—Motor nerve, 4-Sensory nerve,5—Effector 6-Response

Question 26. The cornea is a very important component of the human eye. The main function of the cornea is to—

  1. Bend the light before it reaches the lens
  2. Provide structural support to the eye
  3. Contain a concentrated amount of cone cells in the correct orientation
  4. Change the shape of the lens to enable the image to be focused on the retina

Answer: 4. Change the shape of the lens to enable the image to be focused on the retina

Question 27. A diagram showing the axon terminal and synapse is given. Justify correctly at least two of A-D.

 

  1. 1—Receptor, 3—Synaptic vesicles
  2. 2—Synaptic connection, 4—K+
  3. 1—Neurotransmitter, 2—Synaptic cleft
  4. 3—Neurotransmitter, 4—Ca 2+

Answer: 1. 1—Receptor, 3—Synaptic vesicles

Question 28. Parts A, B, C, and D of the human eyes are shown in
the diagram. Select the option, that gives correct Identification along with its function characteristics

Biology Class 11 Chapter 20 Neural Control And Coordination Multiple Choice Questions 28

  • 1—retina; contains photoreceptors— rods and cones
  • 2— blind spot; has only a few rods and cones
  • 3—aqueous chamber; reflects the light, which does not pass through the lens
  • 4—The choroid, its anterior part forms the ciliary body.

Answer: 1. 1—retina; contains photoreceptors— rods and cones

Question 29. The thermoregulatory center of the human body is Associated with

  1. Cerebrum
  2. Cerebellum
  3. Hypothalamus
  4. Medulla Oblongata

Answer: 3. Hypothalamus

Question 30. Which of the following is the smallest cranial nerve?

  1. Abducent
  2. Optic
  3. Trochlear
  4. Facial

Answer: 3. Facial

Question 31. Hearing is controlled by—

  1. Cerebellum
  2. Diencephalon
  3. The frontal lobe of the cerebrum
  4. The temporal lobe of the cerebrum

Answer: 4. Temporal lobe of cerebrum

Question 32. Adrenaline is Equivalent To Which Neurotransmitter?

  1. Epinephrine
  2. Acetylcholine
  3. Dopamine
  4. GABA

Answer: 1. Epinephrine

Question 33. Sensory neurons in the retina of the eye care—

  1. Rods
  2. Cones
  3. Ciliary Body
  4. Both 1 And 2

Answer: 4. Both 1 And 2

 

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