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Question of the Day. Question: Describe our lab “CO 2 and You” to an absent student. (What did we do, how did we do it, what did you learn, what were the results, etc.) Answer: … … …. Turn in HW AFTER Quiz!.

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Question of the day
Question of the Day

Question: Describe our lab “CO2 and You” to an absent student.

(What did we do, how did we do it, what did you learn, what were the results, etc.)

Answer: … … …

Turn in HW AFTER Quiz!


Open note check in quiz use your entire binder no particular recommendations good luck
Open-Note Check-In QuizUse Your Entire Binder- No Particular RecommendationsGood Luck!




Intro
Intro

  • Immune system- how your body defends against harmful viruses, bacteria, & fungi (pathogens)

  • Features multiple layers of defense


Intro1
Intro

  • Allergies are exaggerated responses to foreign bodies

  • Immune system complicates organ transplantation


Types of defenses
Types of Defenses

  • Non-specific defenses- guards against all pathogens indiscriminately; examples:

    • skin acts as physical barrier


Types of defenses1
Types of Defenses

  • Non-specific defenses- guards against all pathogens indiscriminately; examples:

    • skin acts as physical barrier

    • mucous membranes trap pathogens

Staphylococcus auerus(yellow) sticking to mucous (blue) on cilia cells


Types of defenses2
Types of Defenses

  • Non-specific defenses- guards against all pathogens indiscriminately; examples:

    • skin acts as physical barrier

    • mucous membranes trap pathogens

    • acidic environment of stomach is hostile


Types of defenses3
Types of Defenses

  • Non-specific defenses- guards against all pathogens indiscriminately; examples:

    • skin acts as physical barrier

    • mucous membranes trap pathogens

    • acidic environment of stomach is hostile

    • fever speeds up body responses

    • white blood cells

    • inflammatory response

    • and more



Types of defenses4
Types of Defenses

  • Specific defenses- targets certain pathogens

    • white blood cells mark particular pathogens for destruction & engulf them


Antigens antibodies
Antigens & Antibodies

  • Antibodies- body’s proteins that bind to microbes, marking them for destruction

  • Antigens- a foreign molecule that triggers an immune response

    • Ex: proteins, polysaccharides, toxins



P 969 a q 1a 2ab 3ab 4a
p. 969 A.Q. 1a, 2ab, 3ab, 4a



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