Which of the following is not a target molecule for drug function in body?

Vitamins

The correct answer is 3. Vitamins.

Carbohydrates, lipids, and proteins are all target molecules for drug function in the body. However, vitamins are not. Vitamins are essential nutrients that are needed for good health, but they are not involved in the function of drugs

Drugs work by binding to specific molecules in the body. These molecules are called drug targets. Drug targets can be proteins, carbohydrates, lipids, or nucleic acids.

Proteins are the most common drug targets. This is because proteins are involved in many important functions in the body, such as metabolism, cell signaling, and immunity.

Lipids are also common drug targets. Lipids are involved in the structure of cell membranes and the production of hormones.

Carbohydrates are not as common drug targets as proteins or lipids. However, there are some drugs that target carbohydrates, such as insulin and metformin.

Vitamins are not drug targets because they are not involved in the function of drugs. Vitamins are essential nutrients that are needed for good health, but they do not have specific binding sites that drugs can target.