THE HUMAN IMMUNE SYSTEM
BLOOD GROUPS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carry oxygen from lungs to the rest of the body
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Fight off pathogens and keep the body healthy
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To clot blood after a blood vessel has been damaged (prevents blood loss and from pathogens to enter the body system)
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To carry water and dissolved nutrients to the rest of the body
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Detailed explanation-1: -White blood cells protect your body against infection. As your white blood cells travel through your bloodstream and tissues, they locate the site of an infection and act as an army general to notify other white blood cells of their location to help defend your body from an attack of an unknown organism.
Detailed explanation-2: -They are attracted towards the infective agents, then surround and engulf them. Once inside the cell, these white cells then release chemicals that break the organism down and destroy it. Other white cells, called lymphocytes, target attacks in another way, by making antibodies.
Detailed explanation-3: -White blood cells are part of the body’s immune system. They help the body fight infection and other diseases.
Detailed explanation-4: -(ii) White blood cells produce antibodies. This is one way white blood cells protect us against pathogens.