Question

In rapidly dividing cells, endoplasmic reticulum is

• A. Highly developed
• B. Poorly developed
• C. Absent
• D. None of the above

Answer 1

The correct option is B Poorly developed

Endoplasmic reticulum (ER) is a system of membrane-lined channels found in all eukaryotic cells except mature erythrocytes. It constitutes more than 30 to 60 percent of total cell membranes. The endoplasmic reticulum is little or poorly developed in meristematic cells, young dividing cells etc. Membranes of Endoplasmic reticulum are thinner than most other cell membranes.