1. In a way a cell is like a miniature version of you
In a way a cell is like a miniature version of you. It requires nutrients and, in the process of breaking down the nutrients, the cell produces wastes. So there has to be a way to get nutrients in and wastes out.
Cellular Transport

2. One particular part of the cell plays a huge role in controlling what enters and leaves the cell, so this organelle is in charge of CELLULAR TRANSPORT.
Cell Membrane

3. TRANSPORT FOLDABLE

4. FLUID MOSAIC MODEL
FLUID
___________- because individual phospholipids and proteins can move around freely within the layer, like it’s a liquid.
____________- because its made up of many different parts
MOSAIC

5. Protein
Phospholipid
Bilayer

6. FROM A LOT to NOT Molecules move _______“where there’s _______”
Animatioin from:
Molecules move
_______“where there’s _______”
____“where there’s _______”
FROM
A LOT to
NOT

7. DIFFUSION across a space
Happens anytime there is a __________ in concentration in one place compared to another
= ________________________
DIFFERENCE
Concentration gradient

8. DIFFUSION across a SPACE
Molecules move automatically _______ the concentration gradient _______ an area of _______ concentration ____ an area of ________ concentration
EXAMPLES
DOWN
from
Higher to
Lower
Blue dye in beaker demo,
Someone making popcorn/grilling out
Strong perfume,
Bad smell in room

9. DIFFUSION across a space
Diffusion continues until the concentration is ________________ in space
= ________________________
equal everywhere
Equilibrium

10. Molecules need to move across membranes in cells
Image modiified from:

11. Diffusion can happen across a membrane in a cell, too
…as long as membrane will let the molecule _________________
pass through

12. CELL EXAMPLE:
DIFFUSION automatically moves oxygen from HIGHER concentration (in lungs) to a LOWER concentration (in blood)
CO2 automatically moves from where there is a
HIGHER concentration
(in blood) to where there
is a lower concentration
(in lungs)

13. Fold each flap to the center
Fold Here
Fold Here

14. Position your paper this way
Cut on the dotted lines ONLY!!!!

15. FACILITATED DIFFUSION
PASSIVE TRANSPORT (no energy)
DIFFUSION
OSMOSIS
FACILITATED DIFFUSION

16. FACILITATED DIFFUSION PUMPS
PASSIVE TRANSPORT (no energy)
DIFFUSION
OSMOSIS
FACILITATED DIFFUSION
ACTIVE TRANSPORT (energy needed)
PUMPS
ENDOCYTOSIS
EXOCYTOSIS

17. DIFFUSION Molecules move From High concentration To Low concentration
Ex. Oxygen and
Carbon dioxide

18. DIFFUSION
CO2 and O2
HIGH
LOW

19. OSMOSIS
When WATER
moves from a
high to low
concentration

20. OSMOSIS
H2O
HIGH
LOW

21. FACILITATED DIFFUSION
Uses transport
proteins to move
substances
from high to low
concentration
Ex. Glucose
or amino acids

22. FACILITATED DIFFUSION
Glucose
HIGH
LOW

23. What if cell needs to move a molecule _________ the CONCENTRATION GRADIENT? _______________
AGAINST
(LOWER  HIGHER)
Cell example:
Want to put MORE glucose
into mitochondria when there is
already glucose in there
Image from:

24. PUMPS Molecules move from LOW to HIGH concentration. (against the
gradient)

25. PUMPS
Ions
LOW
HIGH
ATP

26. ENDOCYTOSIS Bulk Transport into the cell Pinocytosis (liquids)
Phagocytosis
(solids)

27. EXOCYTOSIS
Bulk Transport
out of the cell