What is the main lipid component of the plant cell membrane?

Select the correct statements regarding cell membrane in eukaryotic cell.
$A$. Membrane of human $RBCs$ has approximately $52\%$ protein.
$B$. Major phospholipids are arranged in a bilayer.
$C$. Extensions of the plasma membrane into the cell form mesosomes.
$D$. Tails towards the inner part of lipids are hydrophobic and thus protected from aqueous medium.
$E$. Glycocalyx is present on the outer surface of the plasma membrane.
Choose the correct answer from the options given below:

Which of the following membranes is a selectively permeable membrane?

Which concept was proposed by the scientist Robertson?

The membrane that covers the cytoplasm on the outermost side is:

Solid form of food engulfing by cell membrane is called ........