Why membranes are referred to as 'Proteins ice-bergs in a sea of lipids'? Explain this statement

Protein icebergs in a sea of lipids means

Biomembranes are similar to "protein icebergs in sea of lipids "was saying of

Specific latent of fusion of ice is 80 cal/g. Explain this statement ?

The decades 1951-1981 are referred as the period of population explosion in India." Explain the statement by giving any three reasons.

Plasma membrane is made up (A) Protein layer between two lipid layers (B) One lipid layer between two protein layers (C) One lipid layer and one protein layer (D) Lipids arranged in a bilayer

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