Functions of Plasma Membrane

Question 1

Physical Barrier

Answer 1

encloses the cell, separating the cytoplasm from
the extracellular fluid

Question 2

Selective Permeability

Answer 2

determines which substances enters or exit
the cell

Question 3

Communication

Answer 3

plasma membrane proteins interact with specific
chemical messengers and relay messages to the cell interior

Question 4

Cell Recognition

Answer 4

cell surface carbohydrates allow cells to
recognize each other