Identify $X$ and $Y$ from the figure.

In which of the following are plastids $NOT$ found?

In the following,which is not common for chloroplasts and mitochondria?

Identify the labels $A, B, C, D$ and $E$ in the given diagram. The following components are listed:
$(i)$ $SER$
$(ii)$ Ribosome
$(iii)$ Nucleus
$(iv)$ Nuclear pore
$(v)$ $RER$

Match column-$I$ and column-$II$ and select the correct answer.

Column-$I$	Column-$II$
$A$. Bacteria without walls	$I$. Lysosome
$B$. Small circular $DNA$	$II$. Mycoplasma cells
$C$. Flattened sacs in a chloroplast	$III$. Thylakoid
$D$. $A$ vesicle in which hydrolytic enzymes are stored	$IV$. Plasmid

What is a fluorescence microscope used for?