Question

Why the RER appears rough?

Answer 1

$\huge\mathfrak{Ello\:Dear}$❤

RER - Rough Endoplasmic Reticulum.

It has Ribosomes attatched to it.

Hope it helps uhh✌

$\bold{@PhilophobiaXD}$

Answer 2

because there r large number of ribosomes attached to the cytoplasmic side of the membranes