Multiple choice

The cell organelle that is a large network of membrane bound tubes and sheets is the

  1. vacuole

  2. chloroplast

  3. mitochondria

  4. endoplasmic reticulum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The endoplasmic reticulum (ER) is a complex network of membrane-bound tubules and sheets that extends throughout the cytoplasm. It provides a large surface area for cellular activities like protein synthesis and lipid metabolism. Vacuoles are storage sacs, chloroplasts are for photosynthesis, and mitochondria produce energy.

Keep practicing — related questions