Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 43 - 43.3 - Concept Check - Page 968: 1


Lymphocytes in this child's immune system would not be able to mature, produce antibodies, or identify and kill infected cells.

Work Step by Step

T cells mature in the thymus, and without this gland, they would not be able to function fully. Since mature T cells are needed to activate B cells, the lack of functional T cells also creates a lack of functional B cells. This in turn prevents the production of useful antibodies. The lack of mature T and B cells also prevents the immune system from identifying cells that have already been infected and destroying them. In short, this child's immune system would be largely non-functional, making the child extremely susceptible to infection and illness.
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