Question

some proteins on the surface of a mammalian cell contain carbohydrates. these proteins are synthesized by
and the sugars are added in the

○ cytoplasmic ribosomes; cell membrane
○ the golgi apparatus; rough endoplasmic reticulum
○ ribosomes on the rough endoplasmic reticulum; golgi apparatus
○ mitochondrial ribosomes; smooth endoplasmic reticulum
○ cytoplasmic ribosomes; smooth endoplasmic reticulum

Explanation:

• Proteins on the cell membrane are synthesized by ribosomes on the rough endoplasmic reticulum.
• After synthesis, they are modified and processed in the Golgi apparatus.
• The sugars (carbohydrates) are added in the Golgi apparatus.

Answer:

the Golgi apparatus; rough endoplasmic reticulum