NCERT CLASS 11 | TOPIC : NEURAL CONTROL AND CO-ORDINATION | QB-1 | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : NEURAL CONTROL AND CO-ORDINATION | QB-1 | NEET BIOLOGY ONLINE TEST

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It contains 100 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : www.onlinetest.kalvisolai.com

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1 ➤ 1. Select the incorrect statement:

(a) Coordination is the process through which two or more organ interact and complement the function of one another. (b) Neural system provides on organized network of point to point connection for quick coordination. (c) Neural organization is complex in lower invertebrates. (d) Vertebrates have more developed neural system.

2 ➤ 2. Identify A, B, C, D and E:

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(a) A–Central Nervous System (CNS), B–Peripheral Nervous System (PNS), C–Spinal cord,D–Sympathetic Neural System, E–Parasympathetic Neural System (b) A–Peripheral Nervous System (PNS), B–Parasympathetic Neural System, C–Central Nervous System (CNS), D–Sympathetic Neural System, E–Spinal cord (c) A–Parasympathetic Neural System, B–Spinal cord, C–Central Nervous System (CNS),D–Sympathetic Neural System, E–Peripheral Nervous System (PNS) (d) A–Central Nervous System (CNS), B–Spinal cord, C–Peripheral Nervous System (PNS),D–Sympathetic Neural System, E–Parasympathetic Neural System

3 ➤ 3. Somatic neural system transmits impulse to

(a) Skeletal muscles (b) Involuntary organs (c) Smooth muscles (d) All of these

4 ➤ 4. Which of the following lacks a neural system?

(a) Hydra (b) Silver fish (c) Spongia (Sponges) (d) Ophiura

5 ➤ 5. Nervous system of hydra is composed of

(a) Ganglia chain (b) Vertical ganglion chain interconnected by commissure (c) Network of nerves (d) Brain

6 ➤ 6. Nissl’s granules are found in all except

(a) Cyton (b) Dendrites (c) Axon (d) Cell body

7 ➤ 7. Which of the following system relays impulse from CNS to skeletal muscles?

(a) Somatic neural system (b) Sympathetic neural system (c) Parasympathetic neural system (d) Autonomic neural system

8 ➤ 8. Dendrites transmit impulse ____ cell body and axon transmits impulse ____ cell body.

(a) towards, away from (b) away, towards (c) towards, towards (d) away, away

9 ➤ 9. Bipolar axons are found in

(a) Retina of eye (b) Cerebral cortex (c) Mesencephalon (d) Embryonic stage

10 ➤ 10. Unipolar axons are found in

(a) Respiratory epithelium (b) Retina (c) Embryo (d) Cerebral cortex

11 ➤ 11. Schwann cell is absent in

(a) Myelinated neuron (b) Non myelinated (c) Astrocytes (d) Both (b) and (c)

12 ➤ 12. Neuron can

(a) Detect stimuli (b) Receive stimuli (c) Transmit stimuli (d) All of these

13 ➤ 13. Neuron is a _____ structure composed of three major parts cell body _____ and axon.

(a) Macroscopic, dendrites (b) Microscopic, dendrites (c) Microscopic, cyton (d) Microscopic, soma

14 ➤ 14.

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I) (A) (c) (B) (a) II) (A) (c) (B) (b) III) (A) (c) (B) (c) IV) (A) (c) (B) (b)

15 ➤ 15.

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A) B) C) D)

16 ➤ 16. Myelinated nerve fibre is found in

(a) Spinal nerve (b) Cranial nerve (c) Both (a) and (b) (d) None of these

17 ➤ 17. Unmyelinated nerve fibres are commonly found in

(a) ANS (b) Somatic neural system (c) Both (a) and (b) (d) None of these

18 ➤ 18. The outermost of the 3 cranial meninges is

(a) Arachnoid (b) Dura (c) Pia (d) Sclera

19 ➤ 19. Brain stem is formed by

(a) Fore brain (b) Mid brain (c) Hind brain (d) Both (b) and (c)

20 ➤ 20. Right and left cerebral hemispheres are connected via

(a) Corpus striatum (b) Corpus callosum (c) Thalamus (d) Hippocampus

21 ➤ 21. Forebrain consist of

(a) Cerebrum (b) Thalamus (c) Hypothalamus (d) All of these

22 ➤ 22. The cerebrum is made up of how many cerebral hemisphere?

(a) 1 (b) 2 (c) 3 (d) 4

23 ➤ 23. Select the incorrect statement:

(a) Cerebral cortex, greyish in appearance thrown into prominent folds known as sulci and gyri. (b) Concentrated neuron cell body gives grey color to the cerebral cortex. (c) Fibres of the tract, covered with myelin sheath, constitute inner part of cerebral hemisphere. (d) Cerebrum is wrapped around the structure called medulla.

24 ➤ 24. Cerebral cortex contains

(a) Sensory area (b) Motor area (c) Large association area (d) All of these

25 ➤ 25. The association area in cerebral cortex is responsible for

(a) Inter sensory association (b) Memory (c) Communication (d) All of these

26 ➤ 26. The major coordinating centre for sensory and motor signaling is

(a) Thalamus (b) Hypothalamus (c) Medulla (d) Pons

27 ➤ 27. Hypothalamus contain the brain centre which controls the

(a) Body temperature (b) Urge for eating (c) Urge for drinking (d) All of these

28 ➤ 28. Which of the following is true about hypothalamus?

(a) Situated at the base of thalamus (b) Contains neurosecretory cell (c) It contains the centre for thermoregulation (d) All of these

29 ➤ 29. Limbic system consists of

(a) Amygdala (b) Hippocampus (c) Both (a) and (b) (d) None of these

30 ➤ 30. The part of brain located between the thalamus, hypothalamus of fore brain and pons is known as

(a) Mid-brain (b) Hind-brain (c) Limbic system (d) All of these

31 ➤ 31. Which of the following is true about midbrain?

(a) A canal called cerebral aqueduct passes through the mid-brain. (b) The dorsal portion of mid-brain consists of four round swelling called corpora quadrigemina. (c) It forms the part of brain stem. (d) All the above

32 ➤ 32. The hind-brain consists of

(a) Pons (b) Medulla oblongata (c) Cerebellum (d) All of these

33 ➤ 33. Hypothalamus controls

(a) Body’s thermostat (b) Respiration (c) Gastric secretions (d) All of these

34 ➤ 34. Limbic system controls

(a) Sexual behaviour (b) Motivation (c) Affection (d) All of these

35 ➤ 35. Corpora quadrigemina are present on _____ portion of Mesencephalon (midbrain).

(a) Anterior (b) Dorsal (c) Ventral (d) Lateral

36 ➤ 36. Which of the following is false about hind-brain?

(a) Pons, a part of it consist of fibre tracts that interconnects different regions of brain. (b) The cerebellum part of it has very convoluted surface to accommodate many neurons. (c) Medulla of this part is connected to the spinal cord. (d) The hind-brain is known for regular excitement, pleasure, rag and fear.

37 ➤ 37. Medulla contains the centre for

(a) Respiration (b) Cardiovascular reflex (c) Gastric Secretion (d) All of these

38 ➤ 38. Which of the following consists of fibre tracts interconnecting the different regions of brain?

(a) Cerebellum (b) Pons varoli (c) Medulla (d) All of these

39 ➤ 39. Which of the following helps in the regulation of respiration?

(a) Medulla (b) Cerebral cortex (c) Pons (d) Both (a) and (c)

40 ➤ 40. Reflex action is under

(a) CNS (b) Spiral cord (c) Peripheral Nervous Stimulation (d) Voluntary response

41 ➤ 41. The dorsal nerve root ganglion is

(a) Bipolar (b) Unipolar (c) Pseudounipolar (d) Multipolar

42 ➤ 42. In spiral cord of humans, the grey matter is _____ shaped.

(a) Circular (b) Irregular (c) Butterfly (d) None of these

43 ➤ 43. White matter is _____ in brain and _____ in spiral cord (in case of humans)

(a) Outside, inside (b) In, out (c) In, in (d) Out, out

44 ➤ 44. Resting axonal membrane is

(a) Unpolarized (b) Unpolarized and more permeable to K+ (c) Polarized and more permeable to Na+ (d) Polarized and more permeable to K+

45 ➤ 45. Na/K pumps transports

(a) 3Na+ out for 2K+ in (b) 3Na+ in for 2K+ out (c) 2Na+ out for 3K+ in (d) 2Na+ in for 3K+ out

46 ➤ 46. Which of the following is true about neural membrane?

(a) Different type of ion channels present. (b) Ion channels are selectively permeable. (c) Impermeable to negatively charged protein present in axoplasm. (d) All the above

47 ➤ 47. Axoplasm have (polarized)

(a) High K+ ion (b) Low Na+ ion (c) Negatively charged proteins (d) All of these

48 ➤ 48. The electrical potential difference across the resting plasma membrane is called as

(a) Spike potential (b) Action potential (c) Resting potential (d) All of these

49 ➤ 49. Depolarization occurs due to

(a) Influx of Na+ (b) Eflux of Na+ (c) Influx of K+ (d) Eflux of K+

50 ➤ 50. The correct sequence for depolarization and repolarization is

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(A) Stimulus applied at a site on polarized membrane

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(B) Increase the permeability for Na+

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(C) Generation of A.P.(Action Potential)

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(D) Increase the permeability for K+

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(E) Restoration of membrane potential

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(a) A → B → C → D → E (b) B → A → C → D → E (c) A → D → C → B → E (d) A → B → D → C → E

51 ➤ 51. Unidirectional transmission of the nerve impulse is maintained by

(a) Interneurons (b) Myelin sheath (c) Synapse (d) Membrane polarity

52 ➤ 52. Select the total number of true statements from the following.

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1) There are two types of synapses, namely electrical synapses and chemical synapses.

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2) Electrical synapses are rare in our system.

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3) At chemical synapse, the membranes of pre- and post-synaptic neuron are in very close proximity.

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4) Transmission of an impulse across electrical synapses is very similar to impulse conduction along a single axon.

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5) At a chemical synapse, the membrane of the pre- and post-synaptic neurons are separated by a fluid-filled space called synaptic cleft.

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(a) 2 (b) 3 (c) 4 (d) 5

53 ➤ 53. Chemicals called _____ are involved in the transmission of impulses at chemical synapse.

(a) Neurohormones (b) Neurotransmitters (c) Receptors (d) Interferon

54 ➤ 54. Which element ion helps in releasing Ach at synaptic cleft?

(a) Na+ (b) K+ (c) Ca+2 (d) PO₄ ^3-

55 ➤ 55. The new potential developed on post-synaptic membrane is

(a) Excitatory always (b) Inhibitory always (c) May be excitatory or inhibitory (d) Neither excitatory nor inhibitory

56 ➤ 56. Identify A to H in the given figure.

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(a) A—Neurotransmitters, B—Pre-synaptic membrane, C—Receptors, D—Axon,E—Synaptic vesicles, F—Axon terminal, G—Synaptic cleft, H—Post-synaptic membrane (b) A—Axon, B—Axon terminal, C—Synaptic vesicles, D—Pre-synaptic membrane,E—Synaptic cleft, F—Post-synaptic membrane, G—receptors, H—Neurotransmitters (c) A—Receptors, B—Post-synaptic membrane, C—Pre-synaptic membrane, D—Axonterminal, E—Neurotransmitters, F—Synaptic cleft, G—Synaptic vesicles, H—Axon (d) A—Axon terminal, B—Neurotransmitters, C—Synaptic vesicles, D—Axon, E—Presynaptic membrane, F—Post-synaptic membrane, G—Synaptic vesicles, H—Synaptic cleft

57 ➤ 57. Reflex action

(a) Occurs involuntarily (b) Requires the involvement of CNS (c) Protective (d) All of these

58 ➤ 58. Smallest reflex consists of

(a) Afferent neuron (Receptor) (b) Efferent neuron (effector or excitor) (c) Both (a) and (b) (d) None of these

59 ➤ 59. In reflex action, the reflex arc is formed by

(a) Muscle, receptor, brain (b) Brain, spinal cord, muscle (c) Receptor, spinal cord, muscle (d) Receptor, muscle, spinal cord

60 ➤ 60. Which of the following are due to reflex action?

(a) Vomiting (b) Sneezing (c) Coughing (d) All of these

61 ➤ 61. Which of the following are example of reflexes?

(a) Knee-jerk reflex (b) Corneal reflex (c) Papillary reflex (d) All of these

62 ➤ 62. In the diagram of the lateral view of the human brain, the parts are indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the parts which they indicate?

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(a) A–Temporal lobe, B–Parietal lobe, C–Cerebellum, D–Medulla oblongata,E–Frontal lobe (b) A–Frontal lobe, B–Temporal lobe, C–Cerebrum, D–Medulla oblongata,E–Occipital lobe (c) A–Temporal lobe, B–Parietal lobe, C–Cerebrum, D–Medulla oblongata,E–Frontal lobe (d) A–Frontal lobe, B–Temporal lobe, C–Cerebellum, D–Medulla oblongata,E–Occipital lobe

63 ➤ 63. The site for processing of vision, hearing, speech, memory, intelligence, emotions and thoughts is

(a) Brain (b) Hear (c) Lungs (d) Kidney

64 ➤ 64. Eyes are located in

(a) Eye orbits (b) Depression in sphenoid bone (c) Both (a) and (b) (d) None of these

65 ➤ 65. Choroid is blue due to _________

(a) Lack of O2 in tissues (b) Due to pigment (c) Excess of blood vessels (d) None of these

66 ➤ 66. Choroid thickens anteriorly to form

(a) Iris (b) Ciliary body (c) Suspensory ligaments (d) None of these

67 ➤ 67. The diameter of pupil is regulated by

(a) Lens (b) Ciliary muscles (c) Muscles of iris (d) All of these

68 ➤ 68. Cells located in retina are

(a) Photoreceptor cells (b) Bipolar cell (c) Ganglion cells (d) All of these

69 ➤ 69. Layers in the wall of eyeballs from inside outwards are

(a) Retina, choroid, sclerotic (b) Sclerotic, choroid, retina (c) Choroid, retina, sclerotic (d) Choroid, sclerotic, retina

70 ➤ 70. Which layer of an eyeball wall contains abundant blood vessels?

(a) Lens (b) Retina (c) Choroid (d) Sclerotic

71 ➤ 71. Iris is a part of

(a) Choroid only (b) Retina only (c) Sclera and choroid (d) Choroid and retina

72 ➤ 72. The size of aperture of the pupil of one eye is controlled by

(a) Iris (b) Retina (c) Cornea (d) Conjunctiva

73 ➤ 73. Eye lens of a man is

(a) Biconcave (b) Biconvex (c) Concave (d) Convex

74 ➤ 74. Cornea is a transparent part of

(a) Choroid (b) Sclera (c) Conjunctiva (d) Retina

75 ➤ 75. The second layer of the eyeball is called

(a) Choroid (b) Retina (c) Cornea (d) Sclera

76 ➤ 76. The iris of the eye is an extension of

(a) Cornea (b) Sclerotic (c) Retina (d) Choroid

77 ➤ 77. The suspensory ligament (Zonule of Zinn) is a part of

(a) Tongue (b) Brain (c) Heart (d) Eye

78 ➤ 78. The choroid layer is thin over the _________ of the eye ball

(a) Anterior two-third (b) Posterior two-third (c) Lateral two-third (d) Posterior one-third

79 ➤ 79. Find out the incorrect statement:

(a) Lens is a transparent and crystalline structure. (b) Iris is pigmented and opaque layer. (c) The aperture surrounded by iris is called pupil. (d) Twilight vision is the function of cones.

80 ➤ 80. Aqueous humor is present

(a) In front of the retina (b) In front of cornea (c) Behind the conjunctiva (d) In front of lens

81 ➤ 81. Retinal cells involved in colour vision are

(a) Cones (b) Rods (c) Neurons (d) Neuroglial cells

82 ➤ 82. Which of the following is not a basic colour in trichromatic vision?

(a) Red (b) Yellow (c) Green (d) Blue

83 ➤ 83. Anterior chamber of the eye is the space between

(a) Cornea and lens (b) Cornea and iris (c) Lens and retina (d) Lens and iris

84 ➤ 84. Which of the following passes from lens to blindspot?

(a) Eustachian canal (b) Canal of Schlemm (c) Hyaloid canal (d) Semicircular canal

85 ➤ 85. Colour vision in man is

(a) Trichromatic (b) Bichromatic (c) Monochromatic (d) Achromatic

86 ➤ 86. Quantum of light entering the eye through the pupil is dependent on

(a) Ciliary body (b) Lens (c) Retina (d) Iris

87 ➤ 87. Rhodopsin is a constituent of

(a) Choroid (b) Sclera (c) Cornea (d) None

88 ➤ 88. In nocturnal birds, the retina mostly contains

(a) Cones (b) Rods (c) Both in equal numbers (d) None of these

89 ➤ 89. Macula lutea is located

(a) In the middle of retina (b) Below lens (c) Below pupil (d) At posterior polylateral to blind spot

90 ➤ 90. Photopic vision is associated with

(a) Rods (b) Cones (c) Both (a) and (b) (d) None of these

91 ➤ 91. Retina is the most sensitive at

(a) Optic disc (b) Periphery (c) Macula lutea (d) Fovea centralis

92 ➤ 92. The aperture controlling light passage in the eye is

(a) Pupil (b) Sclerotic (c) Blindspot (d) Iris

93 ➤ 93. The space between cornea and lens is

(a) Aqueous chamber (b) Vitreous chamber (c) Canal of Schlemm (d) Fovea centralis

94 ➤ 94. Cones are sensitive to

(a) Dim light only (b) Bright light only (c) Both dim and bright light (d) None of these

95 ➤ 95. Colour is perceived by

(a) Rods in retina (b) Cones in retina (c) Corneal-lens complex (d) Lens

96 ➤ 96. Rhodopsin (visual purple) of the eye will require

(a) Guava (b) Carrot (c) Mango (d) Wheat

97 ➤ 97. Area of the most acute vision in the eye where sharp and bright image formed is

(a) Yellow spot (b) Blindspot (c) Pupil (d) Lens

98 ➤ 98. An area of the retina which does not have rods or cones are

(a) Red spot (b) Blue spot (c) Blind spot (d) Black spot

99 ➤ 99. Vitamin A combines with a protein in the retina to produce

(a) Glaucoma (b) Night blindness (c) Rhodopsin (d) Colour blindness

100 ➤ 100. The fovea is a _________ portion of the _________

(a) Thick-out, sclera (b) Thin-out, choroid (c) Thin-out, retina (d) Thick-out, retina

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