BIOMOLECULES AND ENZYMES

BIOLOGY

PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What term means the protein’s shape is changed and becomes non-functional?
A
Modification
B
Denaturation
C
Distortion
D
Helication
Explanation: 

Detailed explanation-1: -Denaturation is a process in which proteins lose their shape and, therefore, their function because of changes in pH or temperature.

Detailed explanation-2: -Denaturation is described as the change in the structure and function of a protein. The process of altering the shape of a protein so that the purpose is lost is acknowledged as denaturation.

Detailed explanation-3: -Denaturation breaks the covalent bonds that hold the protein in its three-dimensional shape. Without the proper shape, the protein cannot function. Denaturation destroys the primary structure of the protein, and the protein breaks down to monomers.

Detailed explanation-4: -A protein becomes denatured when its normal shape gets deformed because some of the hydrogen bonds are broken. Weak hydrogen bonds break when too much heat is applied or when they are exposed to an acid (like citric acid from lemon juice).

Detailed explanation-5: -Because many of the proteins original bonds have been broken, those parts of the molecule are now available to make new bonds with other substances. This changes the way the molecule reacts. Since a protein’s function is dependent on its shape, a denatured protein is no longer functional.

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