Which of the following can be made into crystal?

Which of these options are not a function of Ribosomes?
$(i)$ It helps in manufacture of protein molecules
$(ii)$ It helps in manufacture of enzymes
$(iii)$ It helps in manufacture of hormones
$(iv)$ It helps in manufacture of starch molecules

$(a)$ List any two structural differences and two similarities between a plant cell and an animal cell.
$(b)$ What would happen if an animal cell is kept in distilled water for $24$ hours?

$A$ cell will swell up if

State whether the following statement is true or false:
$RER$ looks smooth under a microscope because it has particles called ribosomes attached to its surface.

The kitchen of the cell is: