Antigen- Antibody Complexes Trapped in Tissues and Triggering Complement Activation

question 20

Multiple Choice

Antigen- antibody complexes trapped in tissues and triggering complement activation or mast cell degranulation are characteristic of

• A) type II hypersensitivity.
• B) autoimmunity.
• C) type I hypersensitivity.
• D) graft rejection.
• E) type III hypersensitivity.

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Definitions:

Floral Shoot

The part of a plant that carries flowers, which are the reproductive structures of angiosperms.

Petals

Colored or patterned parts of a flower, involved in attracting pollinators and protecting reproductive structures.

Double Fertilization

A process in the flowering plant life cycle in which there are two fertilizations; one fertilization results in formation of a zygote, whereas the second results in formation of endosperm.

Sperm

Male reproductive cells designed to fertilize female ova (eggs) during sexual reproduction.