Which of the following protein act as enzymes? ans. Haemoglobin All of the above Isomerase Insulin

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.

Haemoglobin is a protein, but it does not act as an enzyme. It is responsible for carrying oxygen in the blood.

Insulin is also a protein, but it is a hormone that regulates the metabolism of carbohydrates and fats by promoting the absorption of glucose from the blood into liver, fat and skeletal muscle cells.

So, the correct answer is Isomerase.