Question

what is the difference between the rough and smooth endoplasmic reticulum?
the rough endoplasmic reticulum is found in plant cells, while the smooth endoplasmic reticulum is found in animal cells
the rough endoplasmic reticulum is found in animal cells, while the smooth endoplasmic reticulum is found in plant cells
the rough endoplasmic reticulum breaks down waste, while the smooth endoplasmic reticulum produces energy.
the surface of rough endoplasmic reticulum is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.

Explanation:

• Rough endoplasmic reticulum (RER) has ribosomes on its surface, which gives it a "rough" appearance. Ribosomes are involved in protein synthesis.
• Smooth endoplasmic reticulum (SER) lacks ribosomes on its surface, so it is "smooth". SER is involved in lipid synthesis, detoxification, and other functions.
• Both RER and SER are found in both plant and animal cells. Lysosomes break down waste, and mitochondria produce energy.

Answer:

The surface of rough endoplasmic reticulum is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.