The Third Line of Defence (VCE SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the two unique features of the adaptive immune system?
What are the two unique features of the adaptive immune system?
Specificity and immunological memory
Which immunity type targets extracellular pathogens using antibodies?
Which immunity type targets extracellular pathogens using antibodies?
Humoral immunity
What do B lymphocytes differentiate into?
What do B lymphocytes differentiate into?
Plasma cells and B memory cells
Which MHC molecule do APCs use to present antigens to T helper cells?
Which MHC molecule do APCs use to present antigens to T helper cells?
MHC Class II
How many antibodies can each plasma cell produce per second?
How many antibodies can each plasma cell produce per second?
Approximately 2,000
What components make up an antibody's Y-shaped structure?
What components make up an antibody's Y-shaped structure?
Two heavy chains and two light chains
Which antibody type is the first produced in response to infection?
Which antibody type is the first produced in response to infection?
IgM
What is agglutination?
What is agglutination?
Antibodies clumping pathogens together
What do cytotoxic T cells secrete to destroy infected cells?
What do cytotoxic T cells secrete to destroy infected cells?
Perforin to induce apoptosis
What advantage does immunological memory provide upon re-infection?
What advantage does immunological memory provide upon re-infection?
More rapid immune response in days