Arrange the steps of an allergic response in the proper order

1. Allergic symptoms appear.
2. Allergen binds with IgE.
3. IgE combines with mast cell receptors.
4. Mast cells release histamine.
5. Plasma cells sensitized.



a. 5, 3, 2, 4, 1
b. 1, 5, 2, 4, 3
c. 5, 2, 4, 3, 1
d. 1, 4, 5, 2, 3
e. 4, 5, 2, 3, 1


ANSWER: e

Biology & Microbiology

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