Question
Biology Question on Cell: the unit of life
Which cell organelle is present in both prokaryotic and eukaryotic cell?
A
Ribosome
B
Mitochondria
C
ER
D
Nucleus
Answer
Ribosome
Explanation
Solution
Ribosomes are ribonucleoprotein particles. These are the site 6f protein synthesis. Two basic types of ribosomes are- [a] 70S type (50S + 303): These are found in prokaryotes, mitochondria and chloroplast. [b] 80S type (60S +40S): These are found in cytoplasm of eukaryotes. Mitochondria, endoplasmic reticulum and nucleus are membrane bound cell organelles found in eukaryotic cell only. These are absent in prokaryotic cells.