Collagen is a
  • Cuboidal epithelium
  • Columnar epithelium
  • Simple ciliated brush border epithelium
  • Simple cuboidal brush border epithelium
Which of the following is a contractile protein of a muscle?
  • Phosphoprotein
  • Globulin
  • Scleroprotein
  • Derived protein
Which of the following statements about the mechanism of muscle contraction are correct?A. Acetylcholine is released when the neural signal reaches the motor end plate.B. Muscle contraction is initiated by a signal sent by CNS via a sensory neuron.C. During muscle contraction, the isotropic band gets elongated.D. Repeated activation of the muscle can lead to accumulation of lactic acid.
  • Tubulin
  • Tropomyosin
  • Myosin
  • Actin
The contractile unit of muscle is a part of myofibril between
  • B and C are correct.
  • A and D are correct.
  • A, Band C are correct.
  • A and C are correct.
Read the statements carefully and comment on them.A. A bands of muscle fibre are dark and contain myosin.B. I bands of muscle fibre are light and contain actin.C. During muscle contraction, the A bands contract.D. The part between two Z lines is called sarcomere.E. The central part of the thin filament not overlapped by the thick filament is the H zone.
  • A band and I band
  • Z line and Z line
  • Z line and A band
  • Z line and I band
Which category of muscle does not get tetanised?
  • A, C and E are correct, while B and D are incorrect.
  • A, B and D are correct, while C and E are incorrect.
  • A, B and C are correct, while D and E are incorrect.
  • A and B are correct, while C, D and E are incorrect.
Cyclosis is a characteristic of plant cells like Amoeba and vertebrate WBCs. This movement is due to
  • Striated unbranched muscles
  • Non-striated branched muscles
  • Cardiac muscles
  • Non-striated unbranched muscles
ATPase enzyme needed for muscle contraction is located in
  • Sliding microtubule
  • Cytoplasmic streaming
  • Beating of cilia
  • Podia formation
The only immediate source of energy for muscular contraction is
  • Myosin
  • Actin
  • Troponin
  • Actinin
Which one of the following is the correct pairing of a body part and the kind of muscle tissue which moves it?
  • Phosphocreatinine
  • ATP
  • Phosphoarginine
  • Glucose
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