Of the five antibody classes, the number able to act as the antigen re…

Question

Of the five antibody classes, the number able to act as the antigen receptor on a naive B cell is:

Accepted Answer

C. Two of them

1. Most classes are secreted rather than surface bound.
2. Only IgM and IgD sit on a naive B cell as receptors.
3. So the number is two of them.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 21, The Lymphatic and Immune System._

Answer

Three of them

Answer

Five of them

Answer

One of them

Of the five antibody classes, the number able to act as the antigen receptor on a naive B cell is:

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