$(i)$ Differentiate between rough and smooth endoplasmic reticulum.
$(ii)$ How is endoplasmic reticulum important for membrane biogenesis?

Where are genes located?

If you are provided with some vegetables to cook,you generally add salt into the vegetables during the cooking process. After adding salt,vegetables release water. What mechanism is responsible for this?

Which plastid would you expect to be present in $(i)$ Papaya and $(ii)$ Grass?

Expand the following:
$(i)$ $RER$
$(ii)$ $SER$
$(iii)$ $DNA$
$(iv)$ $RNA$
$(v)$ $ATP$
$(vi)$ $SPM$

Name the stain used to prepare slides like that of onion peel and cheek cell. Why is the use of stain necessary? Do all organelles absorb stain equally?