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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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______ trigger(s) immune responses.

  1. a. Cytokines
  2. b. Lysozyme
  3. c. Antibodies
  4. d. Antigens
  5. e. Histamines
  6. f. MHC markers

Summary Introduction

Concept introduction: Antigens are targeted by the antibodies. The antigen will interact with the antibody that matches the antigens molecular structure. Antigens are peptides, polysaccharides or lipids. Antigens can be self-antigens that originate within the body or can be nonself-antigens that originate from the external environment.

Explanation

Reasons for the correct answer:

Antigens are the molecule capable of inducing an immune response. The antigens, such as pathogen-associated molecular patterns (PAMP) trigger the innate immunity. Innate immunity is a set of defensive mechanism that prevents the entry of pathogens into our body. The activation of the innate immunity triggers the adaptive immunity.

Option d. is given as “Antigens”. As the antigens trigger immune responses option d. is correct.

Reason for incorrect answer:

Option a. is given as “Cytokines”.

Cytokines are signaling molecules that coordinate with the functions of the white blood cells. Therefore, option a. is incorrect.

Option b. is given as “Lysozyme”.

Lysosome is an antimicrobial enzyme produced by animals as a part of the innate immune system...

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