Which one of the following pairs of chemical substances is correctly categorized?

  • A
    Calcitonin and thymosin $\rightarrow$ Thyroid hormones
  • B
    Pepsin and prolactin $\rightarrow$ Two digestive enzymes secreted in stomach
  • C
    Troponin and myosin $\rightarrow$ Complex proteins in striated muscles
  • D
    Secretin and rhodopsin $\rightarrow$ Polypeptide hormones

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Similar Questions

$A-$ Visceral muscles do not show any striations and are smooth in appearance. Hence,they are known as non-striated muscles.
$R-$ Their activities are under the voluntary control of the nervous system.

Which contractile protein of skeletal muscle is associated with $ATPase$ activity?

Proprioceptors are present in . . . . . . .

What is the source of energy for muscle contraction?

Choose the correct properties of muscle fibres.
$I.$ Muscle fibre is lined by the plasma membrane called sarcolemma.
$II.$ Cytoplasm of the muscle fibre is called tonoplasm.
$III.$ Sarcolemma of the muscle fibre encloses the sarcoplasm.
$IV.$ Muscle fibre is a syncytium.
Select the correct option.

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