Question

The main organelle involved in the modification and routing of newly synthesized proteins to their destinations is ________.

• A. Endoplasmic reticulum
• B. Lysosome
• C. Mitochondria
• D. Chloroplast

Answer 1

The correct option is A Endoplasmic reticulum

The main organelle involved in the modification and routing of newly synthesized proteins to their destination is the endoplasmic reticulum. ER divides the intracellular space into two distinct compartments, i.e., luminal (inside ER) and extraluminal (cytoplasm) compartments.

The ER is of the following two types:

1) Smooth ER (SER) - involved in the synthesis of lipids.

2) Rough ER (RER) - involved in protein synthesis and secretion.

So, the correct answer is 'Endoplasmic reticulum'.