Q. With reference to proteins in the human body, consider the following statements:
1.Proteins function as enzymes that catalyse biochemical reactions.
2.Proteins are converted into amino acids only after they have been absorbed into the bloodstream.
3.Proteins serve as the primary long-term energy storage molecules in the human body.
How many of the above statements are correct?
Answer: A
Notes:
Explanation:
- Statement 1 is correct. Most enzymes are proteins that catalyse biochemical reactions.
- Statement 2 is incorrect. Dietary proteins are digested into amino acids before being absorbed into the bloodstream.
- Statement 3 is incorrect. Fats (triglycerides), not proteins, are the primary long-term energy storage molecules in the human body. Proteins are mainly involved in growth, repair, transport, immunity, and regulation.
Source- IE
