Immuno_2_outline

Immuno_2_outline - Biology of AIDS Bio 80J REVIEW OF LAST...

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Biology of AIDS – Bio 80J REVIEW OF LAST TIME Central Dogma of Biology : DNA is transcribed into RNA that is translated into Protein Three levels of defense against pathogens: 1. Physical and chemical barriers 2. Phagocytic cells and the inflammatory response 3. The Immune System What makes the Immune System unique: all 4 characteristics 1. adaptive 2. specific 3. has memory – qualitative and quantitative 4. distinguishes self from non-self THE IMMUNE RESPONSE Active versus Passive Acquired Immunity: Two major types of immune responses: 1. cell mediated 2. humoral
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Cell-mediated and humoral systems work together. Specific types of cells in the blood, lymphocytes , are responsible for both of these. CELLS OF THE BLOOD Red Blood Cells – erythrocytes White Blood Cells – leukocytes TWO CLASSES OF LYMPHOCYTES B CELLS – T CELLS – LYMPHOCYTE DEVELOPMENT
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Effector cells Activated B cells Activated T cells Cytokines QUESTION: why can we respond to the enormous variety of antigens found around us when we
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Immuno_2_outline - Biology of AIDS Bio 80J REVIEW OF LAST...

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