Question

The cells involved in allergic reactions and containing surface receptors of IgE antibodies and histamine are

• A. Basophils
• B. Mast cells
• C. Monocytes
• D. Neutrophils

Hint:

Mast cells = IgE + histamine → key players in allergic reactions.

Answer 1

The Correct Option is A, B

Step 1: Recall role of immune cells.
Allergic reactions involve IgE antibodies, which bind to specialized immune cells. When allergens bind to IgE, these cells release histamine, causing allergy symptoms.
Step 2: Identify the correct cell type.
Mast cells have high-affinity receptors (FcεRI) for IgE. They store histamine in granules and play a central role in allergic responses.
Step 3: Conclusion.
Thus, the correct answer is mast cells.