Biology

The correct answer is: C.Both of above.

The basic types of endoplasmic reticulum (E.R.) are:

1.Rough E.R.: This type of E.R. has ribosomes attached to its surface, giving it a rough appearance. It is primarily involved in the synthesis and processing of proteins.

2.Smooth E.R.: This type does not have ribosomes on its surface, giving it a smooth appearan...