Choose the incorrect statements:
 
1. A. Plasma membrane act as a selectively permeable membrane which is allowing only 50% volume of any materials in or out of the cell.
B. Plasma membrane provides a definite shape to the cell.
C. Plasma membrane is mainly made up of polysaccharides.
D. Plasma membrane is also called a Bio membrane.
 
2. Choose the correct one from the following options:
  
Chromosomes are composed of

A. DNA
B. protein
C. vacuole
D.s Lysosomes