What is a fluorescence microscope used for?

Which of the following statements is correct?

Read the following statements carefully:
$(A)$ Lipid component of the plasma membrane mainly consists of phosphoglycerides.
$(B)$ Polar molecules can pass through the lipid bilayer of plasma membrane,therefore they do not require carrier proteins to facilitate their transport.
$(C)$ Secondary wall is capable of growth and it is formed on the outer side of the cell.
$(D)$ Quasifluid nature of lipid enables lateral movement of proteins within the overall lipid bilayer of plasma membrane.
$(E)$ Middle lamella glues the different neighbouring cells together.
How many statements are incorrect?

The best material for demonstrating streaming movement of protoplasm within living cells is

Which of the following lacks a nucleus?

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?