Tropomyosin and Troponin are Which of the Following Types of Molecules

Question

Tropomyosin and troponin are which of the following types of molecules?
A) functional hormone
B) secretory protein
C) regulatory protein
D) enzyme
E) accessory protein

Accepted Answer

Tropomyosin and troponin are both regulatory proteins involved in muscle contraction. Tropomyosin regulates the binding of myosin to actin filaments, while troponin is involved in the regulation of calcium ions within muscle cells.