Which of the following are $NOT$ considered as the part of endomembrane system?
$A$. Mitochondria $B$. Endoplasmic reticulum $C$. Chloroplasts
$D$. Golgi complex $E$. Peroxisomes
Choose the most appropriate answer from the options given below:

The non-membranous organelles are:

Select the wrong statement from the following.

Which option correctly identifies the parts labeled $a$ and $b$ in the given figure?

Consider the following statements and choose the incorrect option:
$a$. Large and more numerous nucleoli are present in cells actively carrying out protein synthesis.
$b$. Nuclear pores allow bidirectional movement of molecules.
$c$. Cytoskeleton is a glycolipid structure for mechanical support,motility and maintenance of the shape of the cell.
$d$. Steroidal hormones are synthesized by Golgi complex.

$A$ $1 \ ml$ pipette can contain about