Question

Which among the following statements about enzymes is not correct ?

• A. Enzymes are nonspecific
• B. Enzymes are temperature and pH specific.
• C. Almost all enzymes are proteins
• D. Enzymes act as a catalyst

Answer 1

The correct option is A

Enzymes are nonspecific

The explanation for the correct answer

(A)Enzymes are non-specific

1. Enzymes are the proteins that speed up the reaction in our bodies.
2. This means they are acting as catalysts in the metabolic reactions of our body.
3. Enzymatic activity is affected by the effect of temperature, pH, and enzyme/substrate concentration which causes denaturation of proteins.
4. Enzymes are specific in nature.
5. Hence, option A is correct.

The explanation for the incorrect answer

(B)Enzymes are temperature and pH specific

1. Enzymes are temperature and pH specific.
2. They have a specific range of temperature, if the temperature is more than that specific range then enzymes start losing their enzymatic properties and this process is called denaturation.
3. Similarly, they also have a specific pH range and if we increase the pH they do not able to work.
4. Thus, it is an incorrect option.

(C)Almost all enzymes are proteins

1. All enzymes are proteins as they are made up of amino acids.
2. All proteins are not enzymes.
3. Thus, all enzymes are proteins.
4. Thus, it is an incorrect option.

(D)Enzymes act as a catalyst

1. Enzymes speed up the reaction without undergoing any changes in it.
2. Enzymes are biocatalysts.
3. Thus, it is also an incorrect answer.

Thus, enzymes are non-specific is incorrect about enzymes i.e option A is correct.