Question
Asked Oct 23, 2019

Which structure is the site of the synthesis of proteins destined for export from the cell?

  1. Lysosomes 
  2. Smooth ER
  3. Rough ER 
  4. Free cytoplasmic ribosomes
  5. Golgi vesicles
check_circleExpert Solution
Step 1

The membrane-bounded organelles that are suspended in the cytoplasm of a cell are referred to as the cytoplasmic organelles. Each type of organelle possesses a definite structure and a specific role in the function of the cell. Nucleus, ribosomes, mitochondria, endoplasmic reticulum, vesicles, lysosome, and Golgi apparatus are some of the major organelles of cytoplasm.

Step 2

Correct answer: option 3. 

Option 3 is given as “rough ER”.

Reason for correct option: The ribosomes are attached to the endoplasmic reticulum making it rough. The protein synthesis process is initiated when the mRNA moves from the nucleus to the ribosome on the surface of the rough endoplasmic reticulum. The rough ER is found to be studded ...

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