Which of the following pairs of chemical substances, is correct categorization
A
Calcitonin and thymosin - thyroid hormones
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Pepsin and prolactin - two digestive enzymes secreted in stomach
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Troponin and myosin - complex proteins in striated muscles
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Secretin and rhodopsin - Polypeptide hormones
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C Troponin and myosin - complex proteins in striated muscles Troponin and myosin are complex proteins in striated muscles. Thymosins are small proteins present in many animal tissues. They are named thymosins because they were originally isolated from the thymus. Calcitonin is a hormone that is produced by the thyroid glands and reduces the calcium levels in the blood. Pepsin is a digestive enzyme and helps in the breakdown of proteins. Prolactin enables mammals to produce milk and is not a digestive enzyme. Peptide hormones and protein hormones are hormones whose molecules are peptides or proteins. Secretin is an example of a polypeptide hormone but Rhodopsin is a biological pigment found in the rods of the retina.