IB Biology SL 3.2.8 Antibody production Question Bank
Practise IB Biology SL 3.2.8 by explaining how infection stimulates production of specific antibodies.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain how antigens trigger production of antibodies.
- Relate antibody production to defence against bacterial infection.
C3.2.8—B-lymphocyte activation question 1
[Maximum number: 7]
Tuberculosis (TB) is an infectious disease caused by the bacterium Mycobacterium tuberculosis.
Explain the production of antibodies when a patient is infected with the TB bacterium.
a. phagocytes/lymphocytes are white blood cells
b. TB bacterium has a specific antigen
c. this antigen is recognised by white blood cells
d. a clone of lymphocytes/plasma cells/B cells are produced
e. antibodies are produced by lymphocytes
f. each lymphocyte produces just one type of antibody
g. (this is) specific immunity
h. (part of the) antibody/immunoglobulin binds to the antigen / specific antibody binds to the specific antigen
i. antibodies are proteins/immunoglobulins
j. (some) plasma cells become memory cells
k. memory cells reproduce quickly
I. memory cells prevent infection in the future
Marking guidance:
Allow annotated diagrams to explain the process.
7 max
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