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11th Standard Zoology - Neural Control and Coordination English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021

11th Standard

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Zoology

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. Which of the following pairings is correct?

    (a)

    Sensory nerve - afferent

    (b)

    Motor nerve - afferent

    (c)

    Sensory nerve - ventral

    (d)

    Motor nerve - dorsal

  2. Which part of the human brain is concerned with the regulation of body temperature?

    (a)

    Cerebellum

    (b)

    Cerebrum

    (c)

    Medulla oblongata

    (d)

    Hypothalamus

  3. Match the following human spinal nerves in column I with their respective number in column II and choose the correct option.

    Column I Column II
    P. Cervical Nerves i. 5 pairs
    Q. Thoracic nerve ii. 1 pair
    R. Lumbar nerve iii. 12 pair
    S. Coccygeal nerve iv. 8 pair
    (a)
    P Q R S
    iv iii i ii
    (b)
    P Q R S
    iii i ii iv
    (c)
    P Q R S
    iv i ii iii
    (d)
    P Q R S
    ii iv i iii
  4. All of the following are associated with the myelin sheath except

    (a)

    Faster conduction of nerve impulses

    (b)

    Nodes of Ranvier forming gaps along the axon

    (c)

    Increased energy output for nerve impulse conduction

    (d)

    Saltatory conduction of action potential

  5. Which of the following statement concerning the somatic division of the peripheral neural system is incorrect?

    (a)

    Its pathways innervate skeletal muscles

    (b)

    Its pathways are usually voluntary

    (c)

    Some of its pathways are referred to as reflex arcs

    (d)

    Its pathways always involve four neurons

  6. Choose the wrong statement with regard to a dendron.

    (a)

    Dendrons are branched.

    (b)

    Dendron gives rise to Axon.

    (c)

    Dendron is associated with myelin sheath

    (d)

    Dendron arises from cell body.

  7. 'Lazy gates' condition is seen in _____________

    (a)

    Repolarization

    (b)

    Hyperpolarization

    (c)

    Depolarization

    (d)

    Synapse

  8. _______________ is the coloured portion of the eye.

    (a)

    Cornea

    (b)

    Iris

    (c)

    Pupil

    (d)

    Sclera

  9. Irregular curvature of cornea or lens causes ___________

    (a)

    Cataract

    (b)

    Presbyopia

    (c)

    Astigmatism

    (d)

    Myopia

  10. ___________ are involved in olfactory reflexes and emotional responses to odour.

    (a)

    Hypothalamus

    (b)

    Epithalamus

    (c)

    Infundibulum

    (d)

    Mammillary bodies

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