OVERVIEW OF THE IMMUNE SYSTEM
IMMUNITY INNATE AND ADAPTIVE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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microbes that cause a specific immune response
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seen as “foreign” to the body
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normal microbiota
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bacteria with capsules
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pollen or other allergens
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Detailed explanation-1: -There are several types of antigens, categorized by where they come from. These include exogenous antigens, endogenous antigens, autoantigens and tumor antigens.
Detailed explanation-2: -An antigen is any substance that causes your immune system to produce antibodies against it. This means your immune system does not recognize the substance, and is trying to fight it off. An antigen may be a substance from the environment, such as chemicals, bacteria, viruses, or pollen.
Detailed explanation-3: -In general, antigens are composed of proteins, peptides, and polysaccharides. Any portion of bacteria or viruses, such as surface protein, coat, capsule, toxins, and cell wall, can serve as antigens.
Detailed explanation-4: -Antigens that can induce an allergic response are called allergens, and they are often derived from non-infectious or non-microbial sources.