Match the following.

Column-$I$	Column-$II$
$A$. Vacuole	$i$. Krebs cycle
$B$. Mitochondria	$ii$. Photosynthesis
$C$. Golgi body	$iii$. Excretion
$D$. Chloroplast	$iv$. Synthesis site of glycolipid and glycoprotein

Which of the following statements are correct?
$(i)$ In prokaryotic cells,a special membranous structure formed by the extension of the plasma membrane into the cell is known as polysome.
$(ii)$ The smooth endoplasmic reticulum is the major site for synthesis of glycoproteins.
$(iii)$ $RuBisCO$ is the most abundant protein in the whole biosphere.
$(iv)$ Mitochondria,chloroplasts,and peroxisomes are not considered as part of the endomembrane system.

Which stain is used for electron microscopy?

Which one of the following is not included under the endomembrane system?

Protoplasm is a

Mark the incorrect statement.