Question

A series of membrane-enclosed channels studded with ribosomes is called

• A. Lysosomes
• B. Golgi complex
• C. rough endoplasmic reticulum
• D. mitochondria

Answer 1

The correct option is C

rough endoplasmic reticulum

The correct option is C

Explanation of the correct option:

1. The endoplasmic reticulum is a network of membranes found throughout the cell and connected to the nucleus.
2. The endoplasmic reticulum (ER) helps in the synthesis of protein and phospholipids.
3. As ER of two types, Rough endoplasmic reticulum, and Smooth endoplasmic reticulum. The rough endoplasmic reticulum synthesizes protein as it has ribosomes on its surface, and the smooth endoplasmic reticulum synthesizes phospholipids.
4. For the synthesis of membranes, proteins and phospholipids are very important.

Explanation of the incorrect option:

Option A:

1. Lysosomes are cell organelles that contain digestive enzymes capable of breaking down all organic materials.
2. In case of any damage to the cell, lysosomes burst and release the enzymes which digest the other cell organelles and finally the whole cell. So, they are called "suicide bags".

Option B:

1. The Golgi body is a membrane-bound flattened sac-like structure.
2. There are different functions that are performed by Golgi such as modification, sorting, and packaging of the proteins, which are synthesized by cells.

Option D:

1. Mitochondria are the cell organelles that generate electricity or power for the cell to perform functions.
2. Power is in the form of energy.

Final answer: A series of membrane-enclosed channels studded with ribosomes is called the rough endoplasmic reticulum.