THE HUMAN IMMUNE SYSTEM
DEFENSE MECHANIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To produce pathogens and enable them to multiply.
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To only destroy pathogens in the body.
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To only stop pathogens from getting into our body.
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To provide space for pathogens to move within our body.
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To stop pathogens getting into the body and destroy pathogens inside the body.
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Detailed explanation-1: -The immune system protects your child’s body from outside invaders. These include germs such as bacteria, viruses, and fungi, and toxins (chemicals made by microbes). The immune system is made up of different organs, cells, and proteins that work together.
Detailed explanation-2: -The immune system protects the body from possibly harmful substances by recognizing and responding to antigens. Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria.
Detailed explanation-3: -In general, your body fights disease by keeping things out of your body that are foreign. Your primary defense against pathogenic germs are physical barriers like your skin. You also produce pathogen-destroying chemicals, like lysozyme, found on parts of your body without skin, including your tears and mucus membranes.
Detailed explanation-4: -The immune system’s three lines of defense include physical and chemical barriers, non-specific innate responses, and specific adaptive responses.
Detailed explanation-5: -There are two types of specific defense. These include cell-mediated immunity and antibody-mediated immunity. Cell-mediated immunity occurs when T-lymphocytes (T-cells) become activated by exposure to pathogens. Activated T-cells then attack pathogens directly.