Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 ....
Transcript of Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 ....
![Page 1: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/1.jpg)
Plasma Membrane and Cell Transport
7.3
![Page 2: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/2.jpg)
Cell Membrane Labeling
Lipid
bilayer
![Page 3: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/3.jpg)
Phospholipids
Fatty acid
Phosphate
Fatty acid tails
hydrophobic
Phosphate group head
hydrophilic
Arranged as a bilayer
![Page 4: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/4.jpg)
Passive Transport = Requires no E
HIGH
low
![Page 5: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/5.jpg)
Does not use energy
uneven distribution of a substance across a border
3 types
Passive Transport
![Page 6: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/6.jpg)
Diffusion
Molecules in constant motion Molecules move from [ high ] to [ low ] Requires no energy
(passive) EX: O2 moving from
lungs to bloodstream
![Page 7: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/7.jpg)
Remember, Molecules are Always Moving!
![Page 8: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/8.jpg)
![Page 9: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/9.jpg)
no energy required
larger particles that can’t fit easily Sugar ions
Protein channel
Passive Transport: Facilitated Diffusion
![Page 10: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/10.jpg)
Passive Transport: Facilitated Diffusion
![Page 11: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/11.jpg)
No energy required
Diffusion of water
Water moves, not the particles
Passive Transport: Osmosis
![Page 12: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/12.jpg)
Solution Isotonic Hypertonic Hypotonic
Definition Same strength Above strength Below strength
Animal cell
Plant cell
Passive Transport: Osmosis
![Page 13: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/13.jpg)
Concentration of water
Hypertonic - more solute, less water
Hypotonic - less solute, more water
Isotonic - equal solute, equal water
hypotonic hypertonic
water
net movement of water
![Page 14: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/14.jpg)
Requires energy
low to high concentrations
Protein Pump Against Concentration
Gradient
Active Transport
![Page 15: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/15.jpg)
Protein Pump
Endocytosis
Exocytosis
Types of Active Transport
![Page 16: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/16.jpg)
REVIEW Passive Transport Simple diffusion
diffusion of nonpolar, hydrophobic molecules lipids
high low concentration gradient
Facilitated transport diffusion of polar, hydrophilic molecules
through a protein channel high low concentration gradient
Active transport diffusion against concentration gradient
low high
uses a protein pump
requires ATP ATP
![Page 17: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/17.jpg)
Homeostasis – maintain, grow, and respond to environment
Cell Specialization Cells play different roles
7.4 Homeostasis of Cells
![Page 18: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/18.jpg)
Cell – Red Blood Cell
Tissue - Muscle
Organ - Heart
Organ system - Respiratory
Organism - Human
7.4 Homeostasis Levels of Organization
![Page 19: Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid](https://reader030.fdocuments.us/reader030/viewer/2022040401/5e7791c9cb955368d720da0c/html5/thumbnails/19.jpg)
Cellular communication Chemical signals from cell to cell
Carbohydrate chains
7.4 Homeostasis Levels of Organization