1) The plasma membrane allows or permits the entry of some material in and out of the celll so it is called a) Selectively permiable membrane b) permiable membrane c) Osmosis d) Diffusion 2) Plasma membrane is the innermost covering of the cell a) True b) False 3) A substance moving from higher concentration to lower concentration is called a) Osmosis b) Diffusion 4) CO2(carbon dioxide) gets out of the cell in which process a) Diffusion b) Division of labour c) Osmosis 5) Diffusion plays an important role in _________exchange between the cellsas well as the cell and the environment a) Water b) Plasma c) Gaseous 6) The movement of water molecules through selectively permeable membrane is called a) Diffusion b) Osmosis c) Division of lanour 7) In Osmosis the water passes through ________before reaching the cell a) Nucleus b) Plasma membrane c) Mitochondria d) ER(smooth) e) ER(rough) 8) Plasma membrane is also called as a) Cell membrane b) Selectively permiable membrane c) Both a and b 9) In this solution the cell gains water, this solution is called  a) Hypertonic b) Isotonic c) Hypotonic 10) If a cell is added in hypertonic solution the cell will ________due to osmosis a) Swells b) Shrinks c) No change d) None of these 11) Hypotonic solution helps the cell to _________water a) Gain b) Lose c) No change 12) Isotonic solution does what to the cell added to it a) Shrinks b) Swells c) No change 13) Diffusion of water is called a) Division of labour b) Osmosis c) Diffusion of water 14) Isotonic solution has _____concentration compared to cells concentration a) Equal b) High c) Low 15) Example of osmosis a) Plant roots absorbing water from soil b) Exchange of gas in plant 16) Example of diffusion a) Exchange of gas in plant b) Plant roots absorbing water from soil 17) Plasma membrane is made up of a) Organic molecules consisting of lipids and proteins b) Inorganic molecules consisting of sulphur and nitric acids c) Nuclear molecules 18) The flexibility of the cell membrane also enables the cell to engulf in food and other material from its environment.this process is called a) Diffusion b) Osmosis c) Division of labour d) Endocytosis 19) Example of endocytosis a) Amoeba b) Paramoecium 20) Bonus point question a) S b) No

Plasma Membrane

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