For each of the following statements, indicate if it is true of the rough ER only, of the smooth ER only, of both rough and smooth ER, or of neither. a. has ribosomes attached to outer (cytosolic) surface
b. is site for biosynthesis of secretory proteins
c. site for folding of membrane-bound proteins
d. consists of flattened sacs
e. involved in detox of drugs
f. involved in breakdown of glycogen
g. tends to form tubular structures
h. contains less cholesterol than rest of membrane
i. visible only thru electron microscope