Question

Not all proteins are able to renature. Some proteins when exposed to heat or some other denaturing treatment are irreversibly denatured. What is an example of such a protein?

1) Protein A
2) Protein B
3) Protein C
4) Protein D

Answer 1

Proteins can denature when exposed to extreme heat, acids, bases, or other substances. One example is the denaturation of egg white protein when cooked. Not all proteins denature at high temperatures.

Step-by-step explanation:

Proteins can undergo denaturation, where they lose their shape and function, when exposed to extreme heat, acids, bases, and certain other substances. Denaturation is often reversible, but sometimes it can be irreversible, resulting in the permanent loss of function. One example of irreversible protein denaturation is the cooking of an egg white, where the albumin protein loses its shape when subjected to high heat, turning from a clear substance to an opaque white substance. Not all proteins are denatured at high temperatures; for example, bacteria in hot springs have proteins adapted to function at those temperatures.