Type of conjugated molecules present in ribosomes:
Correct answer: B. Nucleoprotein
- A. Glycolipids
- B. Nucleoprotein
- C. Glycoproteins
- D. Lipoproteins
Explanation
Option B is correct. Conjugated molecules are molecules that contain a non-protein prosthetic group, which is a group of atoms that is not part of the amino acid chain of the protein. In the case of ribosomes, the prosthetic group is RNA. Ribosomes are the cellular organelles that are responsible for protein synthesis. They are made up of rRNA and proteins, including nucleoproteins. Nucleoproteins are proteins that are covalently linked to nucleic acids, either DNA or RNA. The type of conjugated molecules present in ribosomes are ribonucleoproteins (RNP). RNP are molecules that contain RNA and protein. In ribosomes, the RNA is called ribosomal RNA (rRNA) and the protein is called ribosomal protein. Ribosomes are the cellular organelles that are responsible for protein synthesis. They are found in all living cells, and they are made up of rRNA and proteins. The rRNA makes up about 60% of the mass of a ribosome, and the proteins make up the remaining 40%.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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