Locomotion and Movement

Multiple Choice Questions

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Action potential is generated by

  • Na+

  • K+

  • Ca+

  • Cl-

A.

Na+

Action potential refers to the electrical potential difference across an axon membrane, that is stimulated (action). Action potential is generated by Na+.

It occurs when the membrane potential of a specific axon location rapidly rises and falls. And this depolarisation leads to the adjacent locations to similary depolarize.

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    One animal that does not perform locomotion is

    • Sycon

    • Nereis

    • Sepia

    • Euglena

    Answer

    During strenuous excercise, glucose is converted into

    • glycogen

    • pyruvic acid

    • starch

    • lactic acid

    Answer

    Which of the following is a transparent tissue?

    • Tendon

    • Fibrous cartilage

    • Hyaline cartilage

    • All of these

    Answer

    In rabbit, end of a long bone is connected in another by

    • tendon

    • ligaments

    • muscle

    • cartilage

    Answer
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    Which of the following is important for muscle contraction and nerve impulse transmission?

    • Ca2+ ions

    • Mg2+ ions

    • Both (a) and (b)

    • Fe2+ ions

    Answer

    Spindle fibre is made up of

    • tubulin

    • humulin

    • intermediate filament

    • flagelin

    Answer

    Ligament is mainly made up of

    • reticulin

    • elastin

    • myosin

    • collagen

    Answer

    Sigmoid notch is formed by

    • cavity formed by humerus

    • cavity formed by radius-ulna

    • cavity formed by tibia-fibula

    • cavity formed by femur

    Answer
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    An acromian process is characteristically found in the

    • pelvic girdle of mammals

    • skull of frog

    • pectoral girdle of mammals

    • sperm of mammals

    Answer
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