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

⇦

⇨

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.

Related Questions:

1. Pollen kitt substance is supplied by
2. The technique called gamete intrafallopian transfer (GIFT) is recommended for those
3. Body posture equilibrium and rapid muscular activities are controlled by
4. Vernalization stimulates flowering in
5. Sliding filament theory can be best explained as:

Topics: Locomotion and Neural Control (33)
Subject: Biology (4253)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends