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- Help me answer: Which one of the following pairs of chemical substances, is correctly categorised?
Which one of the following pairs of chemical substances, is correctly categorised?
- Option 1)
Pepsin and prolactin- Two digestive enzymes secreted in stomach
- Option 2)
Troponin and myosin - complex proteins in striated muscles
- Option 3)
Secretin and rhodopsin - Polypeptide hormones
- Option 4)
Calcitonin and thymosin - Thyroid hormones
Answers (1)
Structure of Contractile Proteins -
Troponin
- wherein
A complex protein Troponin is distributed at regular intervals on the tropomyosin. In the resting state a subunit of troponin masks the active binding sites for myosin on the actin filaments.
Troponin, Actin and myosin are characteristics of striated muscles or stripped muscles.
Option 1)
Pepsin and prolactin- Two digestive enzymes secreted in stomach
Incorrect option
Option 2)
Troponin and myosin - complex proteins in striated muscles
correct option
Option 3)
Secretin and rhodopsin - Polypeptide hormones
Incorrect option
Option 4)
Calcitonin and thymosin - Thyroid hormones
Incorrect option
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