A-LevelBiologyImmunity9700/12 · May/June 2021 · Q391 Mark
Which statements correctly describe lymphocytes? 1 Each B-lymphocyte has the ability to make several types of antibody molecules. 2 Some B-lymphocytes and T-lymphocytes become memory cells. 3 Plasma cells secrete antibodies into the blood plasma. 4 Some T-lymphocytes stimulate macrophages to kill infected cells.
A1, 2, 3 and 4
B1, 2 and 3 only
C1 and 4 only
D2, 3 and 4 only
✓ Correct answer
D: 2, 3 and 4 only
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