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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Antibodies function to:

a. deactivate the complement system.

b. neutralize natural killer cells.

c. clump bacteria and viruses for easy phagocytosis bymacrophages.

d. eliminate the chance for a secondary response.

e. kill viruses inside of cells.

Summary Introduction

Introduction:

Antibodies or the immunoglobulins are the large proteins, which are generated by plasma cells to deactivate the foreign pathogens. They identify the antigen present on the pathogen via its variable region.

Explanation

Justification for the correct answer:

Option (c) states that antibodies clump bacteria and viruses for easy phagocytosis by macrophages. This is a true statement as agglutination or clumping is one of the mechanism by which the antibodies destroy the foreign pathogens. The antibody identifies the pathogen and binds with it causing the agglutination of bacteria, which immobilizes the pathogens, thus preventing them from infecting other cells. Hence, option (c) is correct.

Justification for the incorrect answers:

Option (a) states that antibody deactivate the complement system. This is false as the binding of the antibody with antigens activates the complement system. So, it is an incorrect option.

Option (b) states that antibody neutralizes the natural killer cells. This is false as the activation of antibody with the natural killer cells causes them to release the cytotoxic components and inflammatory cytokines...

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