Which of the following is not a part of the endomembrane system?

Match List $- I$ with List $- II.$

List $- I$	List $- II$
$A$. Centromere	$I$. Mitochondrion
$B$. Cilium	$II$. Cell division
$C$. Cristae	$III$. Cell movement
$D$. Cell membrane	$IV$. Phospholipid Bilayer

Choose the correct answer from the options given below:

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

Select the mismatched pair from the following:

Adult human $RBCs$ are enucleate. Which of the following statement$(s)$ is/are most appropriate explanation for this feature?
$(1)$ They do not need to reproduce.
$(2)$ They are somatic cells.
$(3)$ They do not metabolise.
$(4)$ All their internal space is available for oxygen transport.

In an animal cell,protein synthesis occurs on: