Question

Which of the following biological functions does the protein 'myosin' perform?

Providing storage of essential nutrients

Providing strength and structure

Regulating the contraction of muscles

Transporting substance from one place to another

Protecting cells or the organism from foreign substances Which of the following types of intermolecular/intramolecular bonds are disrupted by the action of alkaloid reagents on positively charged amino groups in proteins? Dispersion forces Disulfide linkages Ionic bonds Hydrogen bonds Hydrophobic interactions

Answer 1

1. The biological functions does the protein 'myosin' perform is --"Regulating the contraction of muscles".

Reasons for this -  Myosin is a protein that converts chemical energy in the form of ATP to mechanical energy, thus generating force and movement. The most striking variety of such movement is muscle contraction. However, interactions of actin and myosin are responsible not only for muscle contraction but also for a variety of movements of nonmuscle cells, including cell division, so these interactions play a central role in cell biology.

2. QUESTION -Bonds that are disrupted by the action of alkaloid reagents on positively charged amino groups in proteins? Answer - IONIC Bonds

This is done in protein denaturation- Denaturation is the term used for any change in the three-dimensional structure of a protein that renders it incapable of performing its assigned function . A wide variety of reagents and conditions, such as heat, organic compounds, pH changes, and heavy metal ions can cause protein denaturation.