Do Now What would happen if there were no border between the United States and Canada?? How is the cell membrane like a border between countries? 3. Think.

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Presentation transcript:

Do Now What would happen if there were no border between the United States and Canada?? How is the cell membrane like a border between countries? 3. Think back to STERNGRR. What is regulation?

proteins nervous receptor ANIMALS plants animals

proteins lipids lipids proteins certain 2 layers partial access Type of lipid 2 layers partial access lipids proteins

HOMEOSTASIS!!! Staying in check! balance pH salt temperature constantly in out difference amount molecules cell membrane HOMEOSTASIS!!! Staying in check!

CFU Check For Understanding “I don’t know” is NOT an acceptable response in this class!! INSTEAD What did you mean by… How did you… Why is it that… Can you explain… What are some other examples of… What is the difference between…

Practice

NO! (PASSIVE) NO! (PASSIVE) NO! (PASSIVE) enters exits transport Particles High to low NO! (PASSIVE) NO! (PASSIVE) high Water NO! (PASSIVE) low YES Low to high YES! YES

Diffusion example

Diffusion example

Diffusion example

Let’s See Some Diffusion http://www.youtube.com/watch?v=aVc_LEuiZ-4 http://www.stolaf.edu/people/giannini/flashanimat/transport/diffusion.swf Food Coloring Demo Febreeze Demo

CFU Check For Understanding “I don’t know” is NOT an acceptable response in this class!! INSTEAD What did you mean by… How did you… Why is it that… Can you explain… What are some other examples of… What is the difference between…

NO! (PASSIVE) NO! (PASSIVE) NO! (PASSIVE) enters exits transport Particles High to low NO! (PASSIVE) NO! (PASSIVE) high Water NO! (PASSIVE) low YES Low to high YES! YES

Osmosis Example

Osmosis Example SALT SUCKS! SALT SUCKS!

Osmosis Example

Osmosis Example

Do Now A cell has a concentration of 0.8% carbon dioxide gas and 0.4% oxygen gas. The blood surrounding the cell has an oxygen concentration of 1.2% and a carbon dioxide concentration of 0.1%. What will the cell lose? What will the cell gain? Draw a picture to demonstrate this transport. 2. A blood cell has the same concentration of water and salt as saline solution. A doctor who failed high school biology and did not listen to the attending nurse used a injection full of distilled water (100% water). What will happen to the blood cells surrounded by the distilled water? (Hint: You will feel excruciating pain.) Explain.

Let’s See Some Osmosis http://www.stolaf.edu/people/giannini/flashanimat/transport/osmosis.swf

Practice!

Gummy Bear Lab

NO! (PASSIVE) NO! (PASSIVE) NO! (PASSIVE) enters exits transport Particles High to low NO! (PASSIVE) NO! (PASSIVE) high Water NO! (PASSIVE) low YES Low to high YES! YES

Facilitated Diffusion example

Facilitated Diffusion example

PASSIVE ACTIVE NO energy required Energy required!

NO! (PASSIVE) NO! (PASSIVE) NO! (PASSIVE) enters exits transport Particles High to low NO! (PASSIVE) NO! (PASSIVE) high Water NO! (PASSIVE) low YES Low to high YES! YES

Active Transport Example

Active Transport Example

Practice!

Practice Answer the Gummy Bear Lab questions on page U3-19 Complete practice problems on pages U3-14, U3-15 & U3-16 When all practice problems are complete, Ms. Simmons must check off your work

Do Now Draw a picture to represent facilitated diffusion. 2. Define active transport. 3. What is the main difference between active and passive transport? 4. What are the 3 types of passive transport?

Do Now Draw a picture of a mitochondria. What is the function of the mitochondria? Draw a picture of a chloroplast. What is the function of the chloroplast?