Topic: Immunity Aim: Explain the two different types of immunity. Do Now: Describe the difference...

Topic: ImmunityAim: Explain the two different types of

immunity.

Do Now: Describe the difference between the two types of bone marrow.

HW: Asexual Repro and Mitosis Reading Notes

Review:

1.Identify what is found on the surface of pathogens.

2.Identify the protein that is produced when foreign antigens enter the body.

3.What are antibodies specific?

4.Identify the type of white blood cells that produce antibodies.

5.Explain what happens when a pathogen enters the body.

Which statement does not identify a characteristic of antibodies?

1.They are produced by the body in response to the presence of foreign substances.

2.They may be produced in response to an antigen.

3.They are nonspecific, acting against any foreign substance in the body.

4.They may be produced by white blood cells.

Part of the body’s first line of defense against disease-causing organisms is

a. the immune system

b. the skin

c. antibodies

d. interferon

A

BC

Pathogen

AntigenAntibody

Immunity•Resistance to a disease

14. Describe the function of memory cells.

• Another type of lymphocyte

• Remain in the blood ready the defend against invasion of the same pathogen at another time

2 types of Immunity

• Long-term (permanent)

• Acquired by:

Active Immunity

1. Coming into contact with pathogen

– Antibodies and memory cells produced

– Antibodies bind to antigens

– Memory cells remain in your blood to “remember” the pathogen

(IMMUNE RESPONSE)

The graph represents the number of antibodies produced by memory cells.

Based on the graph, explain how memory cells prevent you from getting the disease again.

2. Vaccination = injection of weak or dead pathogen

(an immune response occurs)

•Temporary

•Acquired by RECEIVING antibodies

Passive Immunity

1. Child receives antibodies in womb & during breastfeeding

2. Receiving antibodies orally or by injection

Let’s summarize…

1. Explain the difference between passive and active immunity.

2. Explain how someone can receive active immunity for a disease.

3. Explain the contents of a vaccine.

4. Explain how a person can receive passive immunity for a disease.

5. Why is passive immunity only temporary.

http://www.brainpop.com/health/bodysystems/immunesystem/

http://www.brainpop.com/health/diseasesinjuriesandconditions/vaccines/

http://www.brainpop.com/health/diseasesinjuriesandconditions/fluandfluvaccine/

A

BC

Identify each labeled structure and support your answer.

Resistance to a specific disease is a(n)

a. antibiotic.  

b. immunity.  

c. white blood cells.  

d. addiction

Once you have had the chicken pox, it is unlikely that you will ever get the disease again because your body has developed a(n)

a. passive immunity.  

b. addiction.  

c. active immunity.  

d. antibiotic.

Immunity that occurs when a body makes its own antibodies is called _________immunity.

a.Passive

b. Temporary

c. Shortened

d. Active

An injection of a weakened virus that allows one to develop immunity against a disease is called a

a.antibody

b. vaccine

c. epidemic

d. pathogen

Which of the following parts of the body's defense system seeks out and destroys bacteria?

a. mucus  

b. white blood cells  

c. skin  

d. red blood cells