1. Date: November 16, 2016
Aim #25: How can we compare active and passive transport?
HW:
Daily Review of class notes.
Castle Learning GRADED QUIZ due Thursday by 10:30PM
Unit 3 Test Tuesday 11/22 (period 5) Wednesday 11/23 (period 1)
Do Now:

2. Aim #25: How can we compare active and passive transport?

3. Cell Transport
ABSORB
DISTRIBUTE

4. The Cell Non-living cell surroundings
Secrete chemicals (hormones, neurotransmitters, enzymes, antibodies…)
Living cell
Secrete Metabolic wastes (CO2, urea)
Take in: O2, end products of digestion, minerals, chemical messengers (hormones & neurotransmitters)

5. Do all things get through the cell membrane?
Water Molecules
What is concentration?
SELECTIVELY PERMEABLE

6. Does this picture illustrate a concentration gradient?
Yes… there is a higher concentration on the right side than the left

7. How does a rollercoaster work?
HIGH
LOW
LOW

8. When will he need energy?
Should I go against the gradient or down the gradient
HIGH
LOW
LOW

9. 1) What are the two types of transport?
ACTIVE TRANSPORT
PASSIVE TRANSPORT
HIGH
LOW
LOW

10. 2) What are characteristics of Active Transport?
Energy required
Against concentration gradient
From low to high
LOW
HIGH

11. 3) What are characteristics of Passive Transport?
No energy required
Moves along/down concentration gradient
From high to low
LOW
HIGH

12. Can you tell the difference?

13. Low to High Concentration
Would you need energy?
Yes…
it is going from
Low to High Concentration

14. 4) What are the three types of passive transport?
a) Diffusion- movement of O2 and CO2
What direction would the materials move in?

15. 4) What are the three types of passive transport?
b) Facilitated Diffusion- transport proteins help move materials from high to low concentration
glucose

16. 4) What are the three types of passive transport?
c) Osmosis- diffusion of water

17. 5) What are examples of Active Transport?
Contractile vacuole- used to pump out water from freshwater organisms like paramecium

18. Active vs. Passive Transport
Active Transport
Passive
Transport
Energy Required
Direction
Types
YES NO
LOWHIGH
HIGHLOW
Diffusion, Facilitated Diffusion, Osmosis
Contractile Vacuole