Which of the following protein act as enzymes?ans.InsulinIsomeraseAll of the aboveHaemoglobin Previous Marked for Review Next

The protein that acts as an enzyme from the given options is Isomerase. Enzymes are proteins that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.

Here's a step-by-step breakdown:

1. Insulin: This is a hormone that regulates the amount of glucose in the blood. The body’s cells need glucose for energy, but its levels must be controlled. It is not an enzyme.

2. Isomerase: This is an enzyme that catalyzes the rearrangement of atoms within a molecule.

3. Haemoglobin: This is a protein in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs. It is not an enzyme.

So, the correct answer is Isomerase.