Presentation is loading. Please wait.

Presentation is loading. Please wait.

Immune System The immune system is a very complex biological defense system comprising many structures and processes that protects against diseases. The.

Similar presentations


Presentation on theme: "Immune System The immune system is a very complex biological defense system comprising many structures and processes that protects against diseases. The."— Presentation transcript:

1 Immune System The immune system is a very complex biological defense system comprising many structures and processes that protects against diseases. The immune system must detect and pathogens and distinguish them from the organism's own healthy tissue. immune system

2 Adaptive Immune System
The immune system can be classified into innate immune system and the adaptive immune system. Innate Immune System Adaptive Immune System Trigger Non-specific Specific pathogens/antigen Response Time Immediate Delayed Memory No Yes Presence Most living things Jawed animals Innate Adaptive

3 Innate Immune System The innate immune system consist of:
Physical and chemical barriers. Inflammation response (swelling, fever, pain, increased blood flow). White blood cells that eat pathogens. NK (natural killer) cells that destroy sick cells. Barriers Inflammation White blood cells Phagocyte eat pathogens NK cells kill sick cells

4 Adaptive Immune System
The adaptive immune system consist of lymphocytes (white blood cells) that can be trained to recognize, fight and memorize *specific* pathogens. Pathogens are recognized by their foreign antigens (fingerprints). Antigens trigger production of antibodies that fight pathogens. Recognize Fight Memorize Antigens Antibodies Antibody Antigen

5 Adaptive Immune System
B cells (from bone) produce antibody (bombs) to attack pathogens. Killer T cells (from thymus) destroy (terminate) sick cells that display foreign antigens. A few B and T cells become memory cells. B cell Virus B cells Killer T cells Memory Sick cell Killer T cell

6 Disease Control Disease can be controlled by the following:
Isolation (quarantine etc) Sanitation (washing, sewage system etc) Vaccination Medication Eradication (killing mosquitoes etc) Education

7 Vaccination Also called immunization.
A vaccine injects inactivated or attenuated pathogenic material into the body to train the immune system to recognize and attack the pathogen in the future. Vaccination is probably the best method to control disease. Immunization Inactivated Attenuated

8 Immune System Immune System
The _______ ______ is a very complex biological defense system comprising many structures and processes that protects against diseases. The immune system can be classified into ______ immune system and the ________ immune system. The innate immune system includes: Physical and chemical ________. ____________ response (swelling, fever, pain, increased blood flow). _____ _____ _____ that eat pathogens. And NK cells that kill sick cells. The adaptive immune system consist of lymphocytes (white blood cells) that can be trained to _________ , _____ and ________ *specific* pathogens. Pathogens are recognized by their foreign ________ (fingerprints). Antigens trigger production of __________ that fight pathogens. _______ (from bone) produce antibody (bombs) to attack pathogens. ______ __ _____ (from thymus) destroy (terminate) sick cells that display foreign antigens. After a war, a few surviving B and T cells become ______ cells. A vaccine injects ___________ or ___________ pathogenic material into the body to train the immune system to recognize and attack the pathogen in the future. Immune System The _______ ______ is a very complex biological defense system comprising many structures and processes that protects against diseases. The immune system can be classified into ______ immune system and the ________ immune system. The innate immune system includes: Physical and chemical ________. ____________ response (swelling, fever, pain, increased blood flow). _____ _____ _____ that eat pathogens. And NK cells that kill sick cells. The adaptive immune system consist of lymphocytes (white blood cells) that can be trained to _________ , _____ and ________ *specific* pathogens. Pathogens are recognized by their foreign ________ (fingerprints). Antigens trigger production of __________ that fight pathogens. _______ (from bone) produce antibody (bombs) to attack pathogens. ______ __ _____ (from thymus) destroy (terminate) sick cells that display foreign antigens. After a war, a few surviving B and T cells become ______ cells. A vaccine injects ___________ or ___________ pathogenic material into the body to train the immune system to recognize and attack the pathogen in the future.

9 Quiz 6 (Bacteria and Viruses) Quiz 6 (Bacteria and Viruses)
Name: __________ Date: ______ Quiz 6 (Bacteria and Viruses) Which of the following is *NOT* a structure in a bacteria? a) Pili b) Flagellum c) Capsule d) Nucleus e) Plasmid Bacteria can get their food from: a) Sunlight b) Organic compounds c) Inorganic compounds d) Decaying matter e) All of the above True or false? Most bacteria are beneficial and only a fraction cause diseases. Many organisms, including humans, depend on bacteria to survive. Which process below do not involve bacteria? a) Decomposition b) Nitrogen fixation c) Photosynthesis d) Fermentation e) Bioremediation True or false? Antibiotics are chemicals that stop the growth or reproduction of viruses. True or false? A virus can replicate on its own like a bacteria. The cold virus can cause symptoms after an incubation period of ___ days. The chicken pox virus ____ days. Diseases can be hard to treat because bacteria and viruses can ___________ quickly and evade detection, become resistant or infect new species. A ___________ is injected into the body to train the immune system to recognize and defend against a specific virus or bacteria. Which of the following is *NOT* a method of disease control? a) Isolation b) Sanitation c) Vaccination d) Medication e) Eradication f) Fermentation g) Education Name: __________ Date: ______ Quiz 6 (Bacteria and Viruses) Which of the following is *NOT* a structure in a bacteria? a) Pili b) Flagellum c) Capsule d) Nucleus e) Plasmid Bacteria can get their food from: a) Sunlight b) Organic compounds c) Inorganic compounds d) Decaying matter e) All of the above True or false? Most bacteria are beneficial and only a fraction cause diseases. Many organisms, including humans, depend on bacteria to survive. Which process below do not involve bacteria? a) Decomposition b) Nitrogen fixation c) Photosynthesis d) Fermentation e) Bioremediation True or false? Antibiotics are chemicals that stop the growth or reproduction of viruses. True or false? A virus can replicate on its own like a bacteria. The cold virus can cause symptoms after an incubation period of ___ days. The chicken pox virus ____ days. Diseases can be hard to treat because bacteria and viruses can ___________ quickly and evade detection, become resistant or infect new species. A ___________ is injected into the body to train the immune system to recognize and defend against a specific virus or bacteria. Which of the following is *NOT* a method of disease control? a) Isolation b) Sanitation c) Vaccination d) Medication e) Eradication f) Fermentation g) Education


Download ppt "Immune System The immune system is a very complex biological defense system comprising many structures and processes that protects against diseases. The."

Similar presentations


Ads by Google