Which of the following protein act as enzymes?ans.All of the aboveIsomeraseHaemoglobinInsulin Previous Marked for Review Save & Finish

The proteins that act as enzymes from the given options are Isomerase.

Here's a step-by-step explanation:

1. Proteins can function as enzymes, which can speed up chemical reactions in the body.

2. From the given options, Isomerase is an enzyme. Isomerases are a general class of enzymes that convert a molecule from one isomer to another.

3. Haemoglobin and Insulin, although they are proteins, they do not act as enzymes. Haemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues. Insulin is a hormone that regulates the amount of glucose in the blood.

So, the correct answer is Isomerase.