1) ___ is the fundamental unit of life a) cell b) Atom c) Tissue d) DNA 2) which of the following is NOT a part of a cell a) Nucleus b) electron c) cell membrane d) cytoplasm 3) What is Diffusion? a) explosion of atoms b) mixing of one element into other c) the movement of molecules from a region of higher concentration to a region of lower concentration d) mixing of gases into one another 4) Plasma membrane is semi permiable membrane (state true or False) a) True b) False c) partially true d) Nither true not false 5) the diffusion of water is called a) revers diffusion b) water diffusion c) polaroid d) osmosis

Cell membrane

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