1. Happy Tuesday! Socrative Warm Up
HW due Wed/Thursday – If it is done, turn it in early
Quiz Friday - Test Monday - Project Due Tuesday
Socrative Warm Up
If your ID number is listed Below… YOU ARE FAILING BIOLOGY
1ST
2ND
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5TH
937661
940978
944140
953175
924897
951587
214782
937663
937689
939272
938156
938304
221971
997645
939120
941530
941280
228098
946361
940071
938604
213323
932781
937573
938462
939525
937598
938594
996792
937552
938414
945332
938402
906306
991503
938400
937702
941339

2. The movement of molecules in and out of cells
Cell Transport
The movement of molecules in and out of cells
Passive Transport
The movement of molecules from a HIGHER concentration to LOWER concentration, WITHOUT ENERGY, until EQUILIBRIUM (balance) is reached.
Active Transport

3. Concentration: How close molecules are in a given space High concentration: molecules are crowed/close together Low concentration: molecules are spread apart
In the examples below, which boxes have contain molecule in a high concentration and which have molecules in a low concentration?

4. Diffusion: Dye in Water: dye molecule movement
The movement of ANY molecule from a HIGH CONCENTRATION to a LOW CONCENTRATION (pass through the phospholipids when membrane is present)
Dye in Water: dye molecule movement
Air freshener: air freshener particle movement
Farts: poop particle movement

5. Outside the Cell Inside the Cell
Where is there a HIGH concentration of green molecules (left or right)?
Where is there LOW concentration of green molecules (left or right)?
Which way will the green molecules move?
How are the green molecules getting in/out the membrane?
Is this an example of diffusion or facilitated diffusion?
Outside the Cell
Inside the Cell

6. Facilitated Diffusion:
The movement of LARGE molecules, through a protein, from a HIGH CONCENTRATION to a LOW CONCENTRATION

7. = Oxygen molecule
Where is there a HIGH concentration of BLUE molecules (left or right)?
Where is there LOW concentration of BLUE molecules (left or right)?
Which way will the BLUE molecules move?
How are the green molecules getting in/out the membrane?
Is this an example of diffusion or facilitated diffusion?

8. Osmosis:
The movement of ONLY WATER, across a membrane, from a HIGH CONCENTRATION to a LOW CONCENTRATION

9. Facilitated Diffusion
Cell Transport
The movement of molecules in and out of cells
Passive Transport
The movement of ANY molecule from a HIGHER concentration to LOWER concentration, WITHOUT ENERGY, until EQUILIBRIUM (balance) is reached.
Active Transport
Diffusion
Movement of ANY molecule
Facilitated Diffusion
Movement of LARGE molecules from high to low through a channel protein
Osmosis
Movement of ONLY WATER through a MEMBRANE

10. Where is there a HIGH concentration of water molecules (left or right)?
Where is there LOW concentration of water molecules (left or right)?
Which way will the water molecules move?
Is this an example of diffusion, osmosis or facilitated diffusion?

11. A Blood cell (which is 78% water) is placed into a cup of pure (100%) water.
Where is there a high concentration of water?
Where is there a low concentration of water?
Which way will the water move?
Will the cell get bigger or smaller?
Is this an example of diffusion, facilitated diffusion or osmosis?
Outside the cell
Inside the cell
High
100% water
Out of the cell
BLOOD CELL
78% Water
22% Other molecules
Low
SMALLER