Q. Which of the following are not membrane-bound?
A) Mesosomes
B) Vacuoles
C) Ribosomes
D) Lysosomes
Explanation
[Solution] Ribosomes are non-membranous organelles made of rRNA and protein. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.