Q. Three of the following statements regarding cell organelles are correct, while one is wrong. Which one is wrong?
A) Lysosomes are double membraned vesicles budded off from Golgi apparatus and contain digestive enzymes
B) Endoplasmic reticulum consists of a network of membranous tubule and helps in transport, synthesis and secretion
C) Leucoplasts are bound by two membranes, lack pigment but contain their own DNA and protein synthesising machinery
D) Sphaerosomes are single membrane bound and are associated with synthesis and storage of lipids
Explanation
Double membranes are absent in lysosomes. They are enclosed by lipoproteinaceous unit membrane. Lysosome is called ‘suicidal bag’ of the cell due to presence of hydrolytic enzymes.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.