Lysosomes were discovered by Christian de Duve (1955) from rat liver. Matile (1964) discovered lysosomes in plants. Generally, lysosomes are 0.2-0.8$\mu$ in size, irregular membranous vesicles filed with hydrolytic enzymes. They are polymorphic.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.