The main difference between pinocytosis and phagocytosis is:

$A$ student wants to study cell structure using a light microscope with a $10X$ eyepiece and a $45X$ objective lens. To obtain the best resolution,which color of light should be used to illuminate the specimen?

Match List $I$ with List $II$:

List $I$	List $II$
$A$. Nucleolus	$I$. Site of formation of glycolipid
$B$. Centriole	$II$. Organization like the cartwheel
$C$. Golgi apparatus	$III$. Site for active ribosomal $RNA$ synthesis
$D$. Leucoplast	$IV$. For storing nutrients

Choose the correct answer from the options given below:

Consider the following statements and choose the correct statement.
$(i)$ The endomembrane system includes mitochondria,chloroplast and peroxisomes.
$(ii)$ Smooth endoplasmic reticulum is the major site for synthesis of lipid.
$(iii)$ Rough endoplasmic reticulum is actively involved in protein synthesis.
$(iv)$ Mitochondrial matrix possesses single circular $DNA$,a few $RNA$ and $80\; S$ ribosomes.
Which of the above statements are correct?

The cytoplasmic flow is called

Which organelle has a single membrane?