1. Mind Stretcher – 12/8/17
Particles/molecules
In diffusion, __________move from areas of ________ to ________ concentration.
In osmosis, _______ molecules move from areas of __________ to _________ concentration.
high
low
water
high
low
Start Gummy bear lab with

2. “Active Transport Notes”

3. Objective of the Unit Explain that cells need to maintain homeostasis
Explain passive transport and diffusion
Define the process of osmosis
Explain the process of active transport and the role of ATP
Explain the processes of endocytosis and exocytosis

4. Active Transport Requires Energy in form of ATP made by mitochondria).
Moves against the concentration gradient –
(LOW to HIGH)
Two types: Endocytosis & Exocytosis

5. Active Transport
Analogy: Like pedaling uphill on a bike… you need energy to get from LOW part of hill to the HIGH part! 

6. Endocytosis- Going “IN” to the cell
Transporting material INTO a cell by the folding of a membrane.

7. Endocytosis- Going “IN” to the cell

8. Exocytosis- “EXITS” the cell
Moves materials OUT of the cell (materials are too big to move through cell membrane…need energy to push them out!)

9. Let’s Sketch It- Endocytosis v. Exocytosis

10. Cell Membranes & Transport Video Clip

11. Brain Pop- Active Transport

13. Read the Background Info now…

14. Set up Gummy Bear Lab:
1. Write a prediction/hypothesis to answer the question written at the top of your lab sheet. 2. Fill out BEFORE soaking data in the table by measuring with a ruler 3. Determine MASS using an electronic balance…push ON and then TARE before putting gummy bear on balance. 5. Write initials on TAPE on side of cup, place gummy bear inside and fill with water until it covers gummy bear 6. Place in back of room until next class!

15. Gummy Bear Lab Day 2 Gently roll bear from cup onto flat paper towel
Measure the height & width of your bear FIRST!!
Measure mass- Push TARE with wax paper ON electronic scale; Gently roll bear from paper towel onto scale. Record (g) and slide bear back onto paper towel.
Record descriptive characteristics in the chart.
Calculate the percent change…example is class set provided. You may use a calculator/device for this...SHOW YOUR WORK !!
Graph percent change results in a BAR graph.
Answer the analysis questions & turn in.

16. Password  Passive Transport Active Transport Endocytosis Diffusion
Edit the boxes for your subject…
Exocytosis
Osmosis
Active Transport 

17. Mind Stretcher 12/7/16 What is Passive Transport?
Name the two types of passive transport.
Explain the difference between the two.
When molecules move from HIGH to LOW concentration without using energy.
Diffusion & Osmosis
Diffusion- gas and liquid molecules
Osmosis- WATER molecules only

18. Osmosis Rap https://youtu.be/HqKlLm2MjkI

19. Let’s Sketch It- Active v. Passive Transport!