Question

multiple choice question
____ are often attached to the endoplasmic reticulum.
o nucleoli
o ribosomes
o mitochondria

Explanation:

To solve this, we analyze each option:

• Nucleoli are inside the nucleus and not attached to the endoplasmic reticulum.
• Ribosomes are often attached to the rough endoplasmic reticulum (forming rough ER) to synthesize proteins.
• Mitochondria are organelles for energy production and not typically attached to the endoplasmic reticulum.

Answer:

B. Ribosomes