NTA Abhyas NEET2020BotanyCell - The Unit of LifePractice
Ribososomes are CORRECTLY characterized by which of the following statements?
Options
- AThey are composed entirely of r-RNA
- BThey are composed of two equal subunits.
- CThey differ in response to antibiotics depending on whether they are eukaryotic or prokaryotic in origin.
- DThey are composed of three equal subunits.
Correct answer
C. They differ in response to antibiotics depending on whether they are eukaryotic or prokaryotic in origin.
Step-by-step solution
Ribosomes are membrane less organelles found in both types of cells- eukaryote and prokaryote. Ribosomes are made of mix of proteins and ribosomal RNA. This organelle is important for the process of protein synthesis. It helps in translating mRNA and joining the amino acids together forming long polypeptide chain. Each ribosome is made up of two subnits - one large subunit and other small subunits. The ribosomes of the eukaryotes are of 80S type and that of prokaryotes are of 70S. Antibiotics are chemicals that kil