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Which one of the following pairs of chemical substances is correctly categorized?
Options
(a) Calcitonin and thymosin – Thyroid hormones
(b) Pepsin and prolactin – Two digestive enzymes secreted in stomach
(c) Troponin and myosin – Complex proteins in striated muscles
(d) Secretin and rhodopsin – Polypeptide hormones
Correct Answer:
Troponin and myosin – Complex proteins in striated muscles
Explanation:
Troponin is a protein which is found an actin filament and myosin protein is found in myosin filament. Both actin and myosin are complex proteins in striated muscles. Thymosin is a hormone secreted by the thymus that stimulates development of T cells. Prolactin is a hormone released by the pituitary gland that stimulates breast development and milk production in women. Rhodopsin, also known as visual purple, is not a hormone. It is a biological pigment in photoreceptor cells of the retina that is responsible for the first events in the perception of light.
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- Match the following and select the correct answer:
Topics: Locomotion and Neural Control
(33)
Subject: Biology
(4253)
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