Multiple Choice Questions

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During strenuous excercise, glucose is converted into

  • glycogen

  • pyruvic acid

  • starch

  • lactic acid


D.

lactic acid

During strenuous excercise, anaerobic respiration of glucose takes place and Pyruvic acid (a product of glycolysis of glucose) changes into lactic acid. Accumulation of lactic acid is responsible for muscle fatigue. Glycogen is a polysaccharide and stroing material of animal body. It is stored in muscle and liver.

Starch is also a polysaccharide but a storing material of plant body.


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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


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

  • tendon

  • ligaments

  • muscle

  • cartilage


One animal that does not perform locomotion is

  • Sycon

  • Nereis

  • Sepia

  • Euglena


An acromian process is characteristically found in the

  • pelvic girdle of mammals

  • skull of frog

  • pectoral girdle of mammals

  • sperm of mammals


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Ligament is mainly made up of

  • reticulin

  • elastin

  • myosin

  • collagen


Spindle fibre is made up of

  • tubulin

  • humulin

  • intermediate filament

  • flagelin


Which of the following is a transparent tissue?

  • Tendon

  • Fibrous cartilage

  • Hyaline cartilage

  • All of these


Sigmoid notch is formed by

  • cavity formed by humerus

  • cavity formed by radius-ulna

  • cavity formed by tibia-fibula

  • cavity formed by femur


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Action potential is generated by

  • Na+

  • K+

  • Ca+

  • Cl-


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