Match the following:

$(a)$ Protein	$(i)$ $SER$
$(b)$ Lipid	$(ii)$ Golgi body
$(c)$ Glycoprotein	$(iii)$ Lysosome
$(d)$ Hydrolytic enzyme	$(iv)$ $RER$

Describe the structure of the following with the help of labelled diagrams.
$(i)$ Nucleus
$(ii)$ Centrosome

Match the following.

Column-$I$	Column-$II$
$a$. Cristae	$i$. Flattened membrane sacs like structure present in stroma
$b$. Cisternae	$ii$. Infolding of mitochondria
$c$. Thylakoids	$iii$. Disc-shaped sacs
$d$. Kinetochores	$iv$. Disc-shaped structure present in chromosome

Which of the following statements is/are correct?
$(i)$ The endomembrane system includes plasma membrane,$ER$,Golgi complex,lysosomes and vacuoles.
$(ii)$ $ER$ helps in the transport of substances,synthesis of proteins,lipoproteins and glycogen.
$(iii)$ Ribosomes are involved in protein synthesis.
$(iv)$ Mitochondria help in oxidative phosphorylation and generation of $ATP$.

Which of the following statements is incorrect?

Prokaryotic cells do not have: