logging in or signing up Biology 11 - Fluid Mosaic Model dantescience Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2270 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: November 23, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: varsh2010 (41 month(s) ago) nice ppt baby Saving..... Post Reply Close By: varsh2010 (41 month(s) ago) nice comment Saving..... Edit Comment Close By: dratik (42 month(s) ago) nice presentation, thanks for sharing. Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript FLUID MOSAIC MODEL : FLUID MOSAIC MODEL 1 M.Bregar (Dante C.S.S.) FLUID MOSAIC MODEL : FLUID MOSAIC MODEL Model describing structure of the cell membrane Model says model cell membrane is not solid, fluid. Has the consistency of olive oil 2 M.Bregar (Dante C.S.S.) FLUID MOSAIC MODEL : FLUID MOSAIC MODEL 3 M.Bregar (Dante C.S.S.) FLUID MOSAIC MODEL : FLUID MOSAIC MODEL 4 M.Bregar (Dante C.S.S.) Slide 5: FUNCTIONS OF PLASMA MEMBRANE 5 M.Bregar (Dante C.S.S.) PHOTOGRAPH OF CELL MEMBRANE : PHOTOGRAPH OF CELL MEMBRANE CELL MEMBRANE 6 M.Bregar (Dante C.S.S.) FUNCTIONS OF PLASMA MEMBRANE : FUNCTIONS OF PLASMA MEMBRANE Protective barrier Regulates movement of substances in / out of cell (selectively permeable) Allows for cell recognition 7 M.Bregar (Dante C.S.S.) FUNCTIONS OF PLASMA MEMBRANE : FUNCTIONS OF PLASMA MEMBRANE Cell membranes have junctions – surfaces which interlock keeps cells together Provides binding site for enzymes Contains cytoplasm (contents of the cell) 8 M.Bregar (Dante C.S.S.) GAP JUNCTIONS : GAP JUNCTIONS ENDOTHELIAL JUNCTION 9 M.Bregar (Dante C.S.S.) Slide 10: 10 M.Bregar (Dante C.S.S.) Slide 11: STRUCTURE OF PLASMA MEMBRANE 11 M.Bregar (Dante C.S.S.) MEMBRANE COMPONENTS : MEMBRANE COMPONENTS Proteins (intergral & peripheral) Carbohydrates (glucose) Phospholipids Cholesterol 12 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS Make up 30-50% of the cell membrane Phospholipids are like triglycerides with a phosphate Come together to make a fluid membrane 13 M.Bregar (Dante C.S.S.) CLOSER LOOK OF THE PLASMA MEMBRANE : CLOSER LOOK OF THE PLASMA MEMBRANE 14 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS 15 M.Bregar (Dante C.S.S.) Slide 16: PHOSPHATE HEAD – HYDROPHYLIC FATTY ACID TAILS – HYDROPHOBIC 16 M.Bregar (Dante C.S.S.) PHOSPHOLIPID ORIENTATION : PHOSPHOLIPID ORIENTATION PHOSPHATE HEADS – are water loving and point toward water FATTY ACID TAILS – are water fearing and orient themselves to each other 17 M.Bregar (Dante C.S.S.) PHOSPHOLIPID ORIENTATION : PHOSPHOLIPID ORIENTATION In water, phospholipids form a bilayer A cell membrane is a bilayer 18 M.Bregar (Dante C.S.S.) PHOSPHOLIPID ORIENTATION : PHOSPHOLIPID ORIENTATION Liposome is a small vesicle, with an aqueous compartment surrounded by a bilayer 19 M.Bregar (Dante C.S.S.) Slide 20: 20 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS Weak hydrogen bonds keep phospholipids together to make the cell membrane Hydrogen bonds occur between phosphate heads 21 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS 22 M.Bregar (Dante C.S.S.) PROTEINS : PROTEINS Proteins make up about 50% of the cell membrane Various types of proteins 23 M.Bregar (Dante C.S.S.) PROTEINS : PROTEINS M.Bregar (Dante C.S.S.) 24 INTEGRAL PROTEINS : INTEGRAL PROTEINS Proteins which are surrounded by phospholipids Functions: serve as ion channels, membrane pumps, or receptors 25 M.Bregar (Dante C.S.S.) INTEGRAL PROTEINS : INTEGRAL PROTEINS 26 M.Bregar (Dante C.S.S.) INTEGRAL PROTEINS : INTEGRAL PROTEINS 27 M.Bregar (Dante C.S.S.) PERIPHERAL PROTEINS : PERIPHERAL PROTEINS Proteins which attach to the membrane Do not interact with lipids, but with integral proteins Attach by weak hydrogen bonds 28 M.Bregar (Dante C.S.S.) PERIPHERAL PROTEINS : PERIPHERAL PROTEINS 29 M.Bregar (Dante C.S.S.) CHOLESTEROL : CHOLESTEROL Involved in keeping membrane “fluid” Stiffens the outside of the membrane Keeps the inside of the membrane fluid 30 M.Bregar (Dante C.S.S.) Slide 31: 31 M.Bregar (Dante C.S.S.) GLYCOPROTEINS : GLYCOPROTEINS GLYCOPROTEINS found on the surface of the membrane Serve as recognition sites for chemicals Involved in cell to cell interactions 32 M.Bregar (Dante C.S.S.) GLYCOLIPIDS : GLYCOLIPIDS Between phospholipids Face extracellular fluid and serve as “cell identifiers” M.Bregar (Dante C.S.S.) 33 GLYCOLIPIDS : M.Bregar (Dante C.S.S.) 34 GLYCOLIPIDS You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Biology 11 - Fluid Mosaic Model dantescience Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2270 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: November 23, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: varsh2010 (41 month(s) ago) nice ppt baby Saving..... Post Reply Close By: varsh2010 (41 month(s) ago) nice comment Saving..... Edit Comment Close By: dratik (42 month(s) ago) nice presentation, thanks for sharing. Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript FLUID MOSAIC MODEL : FLUID MOSAIC MODEL 1 M.Bregar (Dante C.S.S.) FLUID MOSAIC MODEL : FLUID MOSAIC MODEL Model describing structure of the cell membrane Model says model cell membrane is not solid, fluid. Has the consistency of olive oil 2 M.Bregar (Dante C.S.S.) FLUID MOSAIC MODEL : FLUID MOSAIC MODEL 3 M.Bregar (Dante C.S.S.) FLUID MOSAIC MODEL : FLUID MOSAIC MODEL 4 M.Bregar (Dante C.S.S.) Slide 5: FUNCTIONS OF PLASMA MEMBRANE 5 M.Bregar (Dante C.S.S.) PHOTOGRAPH OF CELL MEMBRANE : PHOTOGRAPH OF CELL MEMBRANE CELL MEMBRANE 6 M.Bregar (Dante C.S.S.) FUNCTIONS OF PLASMA MEMBRANE : FUNCTIONS OF PLASMA MEMBRANE Protective barrier Regulates movement of substances in / out of cell (selectively permeable) Allows for cell recognition 7 M.Bregar (Dante C.S.S.) FUNCTIONS OF PLASMA MEMBRANE : FUNCTIONS OF PLASMA MEMBRANE Cell membranes have junctions – surfaces which interlock keeps cells together Provides binding site for enzymes Contains cytoplasm (contents of the cell) 8 M.Bregar (Dante C.S.S.) GAP JUNCTIONS : GAP JUNCTIONS ENDOTHELIAL JUNCTION 9 M.Bregar (Dante C.S.S.) Slide 10: 10 M.Bregar (Dante C.S.S.) Slide 11: STRUCTURE OF PLASMA MEMBRANE 11 M.Bregar (Dante C.S.S.) MEMBRANE COMPONENTS : MEMBRANE COMPONENTS Proteins (intergral & peripheral) Carbohydrates (glucose) Phospholipids Cholesterol 12 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS Make up 30-50% of the cell membrane Phospholipids are like triglycerides with a phosphate Come together to make a fluid membrane 13 M.Bregar (Dante C.S.S.) CLOSER LOOK OF THE PLASMA MEMBRANE : CLOSER LOOK OF THE PLASMA MEMBRANE 14 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS 15 M.Bregar (Dante C.S.S.) Slide 16: PHOSPHATE HEAD – HYDROPHYLIC FATTY ACID TAILS – HYDROPHOBIC 16 M.Bregar (Dante C.S.S.) PHOSPHOLIPID ORIENTATION : PHOSPHOLIPID ORIENTATION PHOSPHATE HEADS – are water loving and point toward water FATTY ACID TAILS – are water fearing and orient themselves to each other 17 M.Bregar (Dante C.S.S.) PHOSPHOLIPID ORIENTATION : PHOSPHOLIPID ORIENTATION In water, phospholipids form a bilayer A cell membrane is a bilayer 18 M.Bregar (Dante C.S.S.) PHOSPHOLIPID ORIENTATION : PHOSPHOLIPID ORIENTATION Liposome is a small vesicle, with an aqueous compartment surrounded by a bilayer 19 M.Bregar (Dante C.S.S.) Slide 20: 20 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS Weak hydrogen bonds keep phospholipids together to make the cell membrane Hydrogen bonds occur between phosphate heads 21 M.Bregar (Dante C.S.S.) PHOSPHOLIPIDS : PHOSPHOLIPIDS 22 M.Bregar (Dante C.S.S.) PROTEINS : PROTEINS Proteins make up about 50% of the cell membrane Various types of proteins 23 M.Bregar (Dante C.S.S.) PROTEINS : PROTEINS M.Bregar (Dante C.S.S.) 24 INTEGRAL PROTEINS : INTEGRAL PROTEINS Proteins which are surrounded by phospholipids Functions: serve as ion channels, membrane pumps, or receptors 25 M.Bregar (Dante C.S.S.) INTEGRAL PROTEINS : INTEGRAL PROTEINS 26 M.Bregar (Dante C.S.S.) INTEGRAL PROTEINS : INTEGRAL PROTEINS 27 M.Bregar (Dante C.S.S.) PERIPHERAL PROTEINS : PERIPHERAL PROTEINS Proteins which attach to the membrane Do not interact with lipids, but with integral proteins Attach by weak hydrogen bonds 28 M.Bregar (Dante C.S.S.) PERIPHERAL PROTEINS : PERIPHERAL PROTEINS 29 M.Bregar (Dante C.S.S.) CHOLESTEROL : CHOLESTEROL Involved in keeping membrane “fluid” Stiffens the outside of the membrane Keeps the inside of the membrane fluid 30 M.Bregar (Dante C.S.S.) Slide 31: 31 M.Bregar (Dante C.S.S.) GLYCOPROTEINS : GLYCOPROTEINS GLYCOPROTEINS found on the surface of the membrane Serve as recognition sites for chemicals Involved in cell to cell interactions 32 M.Bregar (Dante C.S.S.) GLYCOLIPIDS : GLYCOLIPIDS Between phospholipids Face extracellular fluid and serve as “cell identifiers” M.Bregar (Dante C.S.S.) 33 GLYCOLIPIDS : M.Bregar (Dante C.S.S.) 34 GLYCOLIPIDS