Answer the following questions Which structure is the true p

Answer the following questions: Which structure is the true permeability barrier? What would happen to the cell if you made the permeability barrier \"leaky\"? Which structure provides support and shape? What would happen to the cell if you broke this structure? Which structure only allows hydrophilic small molecules (

Solution

a)The plasma membrane is the true permeable barrier.If it is leaky then all the cytoplasm would move outside and other nearby regions would enter the membrane breaking the membrane,

b)The cell wall supports size and shape.If we break this structure then nucleus will expand.

c)Liposomes allows hydrophilic small molecules.They are found in cell membrane.They are found in aquatic organizms..

d)if we treate a bacterial cell with lysizyme under isotonic conditions then the various Gram positive cells are generally susceptible to lysozyme,On the other hand the Gram negative cells are not susceptible because the outer membrane blocks access of the enzyme to the peptidoglycab.The cell is called gram cell.