2. DO NOW
Place the following in order from smallest to largest: tissue, organelle, organism, cell, organ system, organ

3. DO NOW
Place the following in order from smallest to largest: tissue, organelle, organism, cell, organ system, organ
Organelle, cell, tissue, organ, organ system, organism

4. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU.
Hypothesis: 
Experimental group:
Control group:
Independent variable:
Data to be collected:
Results to support the claim:

5. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU. Hypothesis: Experimental group: Independent variable: Data to be collected: Results to support the claim:

6. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU.
Hypothesis: If I use phenylalanine, then tyrosine production will increase

7. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU. Hypothesis: If I use phenylalanine, then tyrosine production will increase Experimental group: Independent variable:

8. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU.
Hypothesis: If I use phenylalanine, then tyrosine production will increase
Experimental group: Group with phenylalanine
Independent variable:Group without phenylalanine

9. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU. Hypothesis: If I use phenylalanine, then tyrosine production will increase Experimental group: Group with phenylalanine Independent variable:Group without phenylalanine Data to be collected:

10. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU.
Hypothesis: If I use phenylalanine, then tyrosine production will increase
Experimental group: Group with phenylalanine
Independent variable:Group without phenylalanine
Data to be collected: Amount of tyrosine produced
Results to support the claim: Tyrosine production DID increase with phenylalanine

11. A scientist would like to know the effect of phenylalanine on tyrosine production in patients with PKU.
Hypothesis: If I use phenylalanine, then tyrosine production will increase
Experimental group: Group with phenylalanine
Independent variable:Group without phenylalanine
Data to be collected: Amount of tyrosine produced
Results to support the claim: Tyrosine production DID increase with phenylalanine

12. Homeostasis Homeostasis in organisms is constantly threatened.
Loss of homeostasis can result in disease/sickness
If homeostasis is not regained, death can happen.
Death is a permanent loss of homeostasis

13. Pathogens
Anything that enters an organism and causes harm are called a pathogen.
SOME bacteria, viruses, fungi, and yeast are pathogenic.
Pathogens interfere with normal life functions

14. Pathogens could also be called…
“foreign microbe”
“pathogenic micoorganism”
“disease-causing agent”

15. The IMMUNE SYSTEM is the body system that helps protect living things from pathogens.

16. The IMMUNE SYSTEM is the body system that helps protect living things from pathogens.
The immune system will attack when it recognizes an antiGEN
PathoGENS have antiGENS
Some other foreign molecules and cancer cells have antigens.

17. An antigen is a surface molecule that the immune system cells recognize as dangerous

18. An antigen is a surface molecule that the immune system cells recognize as dangerous
Each antiGEN has a specific shape that can be marked only by a specific antiBody.

19. The immune system is made of white blood cells.
Some white blood cells release antibodies to mark pathogens for destruction

20. The immune system is made of white blood cells.
Some white blood cells release antibodies to mark pathogens for destruction
Some white blood cells engulf pathogens

28. The white blood cell with the antibody to mark the antigen will multiply and divide to launch an attack.
The cells and antibodies created will remain in the body forever as memory cells.

29. The white blood cell with the antibody to mark the antigen will multiply and divide to launch an attack.
The cells and antibodies created will remain in the body forever as memory cells.
Memory cells are ready to attack if the same invader ever enters the body again.
Your body builds an IMMUNITY to invaders. You cannot be attacked by the same pathogen twice, because your body is ready to fight the second time.

31. 2 ways to become immune to a disease
1. Get sick by the disease. The body will build up memory cells that will fight the disease before it could cause harm again
2. Get a vaccine

32. Vaccines are weakened/dead versions of a virus that are injected into the body.
The vaccine will allow the immune system to see the antigens and build up antibodies, without making the person sick.

35. GET SICK = get robbed once, recognize the robber and the second time you are ready to fight back
VACCINE= see a picture of the robber beforehand so you are ready.

36. HIV HIV is a VIRUS HIV can cause the disease AIDS
HIV attacks and weakens the immune system
The immune system becomes so weak that it cannot fight other pathogens like the flu or a cold.