Question
Biology Question on Cell: the unit of life
Which of the following are not membrane - bound?
A
Lysosomes
B
Mesosomes
C
Vacuoles
D
Ribosomes
Answer
Ribosomes
Explanation
Solution
Endoplasmic reticulum, nuclei, lysosomes, Golgi apparatus and mitochondria are membrane bound cell organelles whereas ribosomes are naked ribonucleoprotein protoplasmic particles. Chromosomes are the hereditary particles present in the nucleus.