Question

Prosthetic group of a glycoprotein consists of
A. Lipids
B. Nucleic acid
C. Metal ions
D. Carbohydrate

Answer 1

Hint: This is used as energy sources and as important structural elements in organisms. In addition, much of the nucleic acid structure, which includes genetic material, consists of this nutrient.

Complete Answer:
- Glycoproteins belong to the branch of conjugate proteins. Many proteins contain only amino acids and no other chemical groups and are considered basic proteins. Some styles of proteins produce, however, on hydrolysis, some other chemical factor besides amino acids and are called conjugate proteins.
- Conjugated proteins are made up of a protein molecule that is bound to a non-protein group called the prosthetic group.
- Glycoproteins are typically the largest and most common group of conjugated proteins. They range from glycoproteins in glycocalyx-constituting cell surface membranes to essential antibodies formed by leukocytes.
- Lipids are prosthetic classes of lipoproteins. Lipoproteins are found in milk casein, membranes, egg yolk, and blood serum.
- Nucleic acids are prosthetic classes of nucleoproteins. Examples of nucleoproteins include ribonucleoprotein of ribosomes and deoxyribonucleoprotein of chromosomes.
- Metal ions are prosthetic classes in metalloproteins.
- An example of this is the enzyme carbonic anhydrase. It contains zinc ions in addition to the amino acids in the molecule.
- The prosthetic group of glycoproteins consists of carbohydrates. Glycoproteins are found in blood plasma, egg albumin, saliva, mucus and blood group compounds.

Thus, the correct answer is option D i.e., Carbohydrate.

Note: Glycoproteins are proteins that have sugars bound to them. They perform many essential roles for the body, like supporting the respiratory, digestive and reproductive processes, transporting molecules, etc.