INTRODUCTION
CELL STRUCTURE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
to synthesise proteins that are used within the cytoplasm of that cell
|
|
|
to make proteins that are usually transported out of the cell
|
|
|
to synthesise fats and steroids e.g. sex hormones
|
|
|
detoxification i.e. converting harmful substances into harmless materials
|
Detailed explanation-1: -What does the rough ER do? The rough ER purpose is to produce proteins that will become part of the endomembrane system, the plasma membrane or to be secreted. The endomembrane system includes all membranes within the cell, such as the endoplasmic reticulum itself, the Golgi apparatus, lysosomes and vesicles.
Detailed explanation-2: -The RER is associated with many roles in protein synthesis, which also include post-translational modifications, folding, and sorting. Membrane-bound ribosomes in the RER translate the mature mRNA transcript into amino acids that are attached to become polypeptides.
Detailed explanation-3: -Plasma membrane and lysosomal proteins also travel from the rough ER to the Golgi and then to their final destinations. Still other proteins travel through the initial steps of the secretory pathway but are then retained and function within either the ER or the Golgi apparatus.