Multiple Choice
Which of the following is not a possible symptom of a food allergy?
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21. The Immune System
Introduction to the Immune System
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Which of the following proteins are critical to the body's defense against bacteria and viruses?
A
Antibodies
B
Hemoglobin
C
Insulin
D
Collagen
Verified step by step guidance1
Understand the role of each protein listed: Antibodies, Hemoglobin, Insulin, and Collagen.
Antibodies are proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.
Hemoglobin is a protein in red blood cells responsible for carrying oxygen from the lungs to the rest of the body and returning carbon dioxide from the body to the lungs.
Insulin is a hormone produced by the pancreas that regulates blood glucose levels by facilitating the uptake of glucose into tissues.
Collagen is a structural protein that provides strength and elasticity to connective tissues, skin, and bones.
Identify which protein is directly involved in the immune response against bacteria and viruses, which is the primary function of antibodies.
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