Question

Select the true statements about denaturation.

a. Denaturation and digestion refer to the same process.
b. Denaturation of an enzyme will cause a loss of its catalytic activity.
c. A zymogen is a denatured form of a proteolytic enzyme.
d. Egg white meringue contains denatured egg white proteins.
e. A denatured protein has a different tertiary structure than its native state.
f. Protein denaturation involves cleavage of its peptide bonds.

Answer 1

Answer:

The correct options are: Denaturation of an enzyme will cause a loss of its catalytic activity.

Egg white meringue contains denatured egg white proteins.

A denatured protein has a different tertiary structure than its native state.

 Protein denaturation involves cleavage of its peptide bonds.

Explanation:

Protein denaturation is the breakdown of tertiary or quaternary junctions of proteins, which are the easiest to break compared to primary and secondary.

Denaturation can arise due to a change in pH or due to excess temperature. An enzyme is generally a protein and if it is subjected to acidic acids or high temperatures, it denatures, ceasing to perform its function.

Zymogen is a non-denatured INACTIVE proenzyme, that is why we consider that option false along with those that were not selected.

Answer 2

The statements true about the denaturation has been statement b, d, e, and f.

Denaturation can be described as the process for the rupture of the tertiary and quaternary structure of the protein with the change in pH or the reaction or change in the chemical environment.

• The quaternary structure of the enzyme has been responsible for the catalytic activity. Denaturation of an enzyme will cause a loss of its catalytic activity. Thus statement b is true.

• Egg white protein has been simple denatured protein. Thus, egg white meringue contains denatured egg white proteins. Statement d is true.

• The denaturation will distort the shape of the protein. A denatured protein has a different tertiary structure than its native state. Thus statement e is true.

• The rupture of structure has been based on the rupture of the peptides bond. Thus statement f is true.

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