BIOD 171 MODULE 3 ESSENTIAL
MICROBIOLOGY EXAM PREP QUESTIONS
ANSWERS BUNDLED SOLUTIONS HIGH
QUALITY PRACTICE MATERIAL
●● Self vs nonself
Answer: Ability of immune system to distinguish body cells from
foreign cells
●● Primary response
Answer: First exposure to antigen; slower, weaker response
●● Secondary response
Answer: Faster, stronger response due to memory cells
●● Humoral immunity
Answer: B cells produce antibodies to fight extracellular antigens
●● Cell-mediated immunity
Answer: T cells attack infected or abnormal cells
●● B cells
, Answer: Mature in bone marrow; produce antibodies
●● T cells
Answer: Mature in thymus; respond to infected cells
●● Antigen
Answer: Substance that triggers antibody production
●● Epitope
Answer: Specific part of antigen recognized by antibody
●● Hapten
Answer: Small molecule that becomes antigenic when attached to carrier
●● Antibody (immunoglobulin)
Answer: Protein that binds specific antigens
●● Valence
Answer: Number of antigen-binding sites on antibody
●● Structure of antibody
Answer: Y-shaped; 2 heavy chains + 2 light chains
MICROBIOLOGY EXAM PREP QUESTIONS
ANSWERS BUNDLED SOLUTIONS HIGH
QUALITY PRACTICE MATERIAL
●● Self vs nonself
Answer: Ability of immune system to distinguish body cells from
foreign cells
●● Primary response
Answer: First exposure to antigen; slower, weaker response
●● Secondary response
Answer: Faster, stronger response due to memory cells
●● Humoral immunity
Answer: B cells produce antibodies to fight extracellular antigens
●● Cell-mediated immunity
Answer: T cells attack infected or abnormal cells
●● B cells
, Answer: Mature in bone marrow; produce antibodies
●● T cells
Answer: Mature in thymus; respond to infected cells
●● Antigen
Answer: Substance that triggers antibody production
●● Epitope
Answer: Specific part of antigen recognized by antibody
●● Hapten
Answer: Small molecule that becomes antigenic when attached to carrier
●● Antibody (immunoglobulin)
Answer: Protein that binds specific antigens
●● Valence
Answer: Number of antigen-binding sites on antibody
●● Structure of antibody
Answer: Y-shaped; 2 heavy chains + 2 light chains