The Definition of Homeostasis isinternal environmental balance the diffusion of water( internal environmental balance, the diffusion of water )?

1.) Transmit signals to the inside of the cell, serve as support structures for the membrane, and move needed substances and wastes through the membrane.------ Proteins Cholesterol Carbohydrates( Proteins, Cholesterol, Carbohydrates )

2.) Prevents the fatty acid tails of the phospholipid bilayer from sticking together and contributes to the fluidity of the membrane.------- Proteins Cholesterol Carbohydrates( Proteins, Cholesterol, Carbohydrates )
3.) Define the cell’s characteristics and help cells identify chemical signals---- Proteins Cholesterol Carbohydrates( Proteins, Cholesterol, Carbohydrates )