1. NAME:noR SHAFRINA BINTI MOHD NOORCLASS:5 HARMONIINCHARGE: MISS YUSNI BINTI MD YUSOFF

2. CONTENTS The movement of substances across the plasma membrane Necessity for movement of substances across the plasma membrane The structure of plasma membrane The process of the movement of substances across the plasma membrane 3. contents 4. Necessity for movement of substance across the plasma membrane To provide nutrient for metabolism & growth To supply oxygen for respiration CO2 is produced during cell respiration CO2 and other waste products need to be eliminated from the cellscontents 5. contents 6. The structure of plasma membrane The plasma membrane is very thin and soft Thickness 7.0-8.0 mm It is a very effective barrier It is made up 2 layers of phospholipids Protein which are distributed in the plasma membrane include: Pore protein Carrier proteincontents 7. The process of the movement of the substances across the plasma membranecontents 8. Transport process Passive transport Process which does not require energy Simple diffusion Osmosis Facilitated diffusionActive transport Process which require energycontents 9. Passive transport The movement of particles (molecules/ions) within a gas or liquid across the plasma membrane from a region of higher concentration to a region of lower concentration & does not require expenditure of energy from ATP.Simple diffusionOsmosis Facilitated diffusioncontents 10. Simple diffusioncontents 11. Simple diffusioncontents 12. osmosiscontents 13. Facilitated diffusioncontents 14. Active transportIt is the movement of substances across the plasma membrane against the concentration gradient with the help of carrier protein and the use of cellular energyActive transport can only take in living organismThe energy provided by the ATPcontents 15. Active transportcontents 16. THANKYOU!!!HOPE YOU ALL ENJOYED IT!!! contentsEXIT BUBYE!