OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Specific immunity produced by B cells that produce antibodies that circulate in body fluids
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Immunity that is present before exposure and effective from birth. Responds to a broad range of pathogens.
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type of immunity produced by T cells that attack infected or abnormal body cells
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None of the above
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Detailed explanation-1: -Innate immunity is the first line of defense against pathogens that responds quickly to harmful agents or pathogens. The cellular and molecular components of the innate immune system are present and functioning even before infection.
Detailed explanation-2: -Innate immunity. Innate immunity can be viewed as comprising four types of defensive barriers: anatomic (skin and mucous membrane), physiologic (temperature, low pH and chemical mediators), endocytic and phagocytic, and inflammatory.
Detailed explanation-3: -Immunity that is present at birth and lasts a person’s entire life. Innate immunity is the first response of the body’s immune system to a harmful foreign substance. When foreign substances, such as bacteria or viruses, enter the body, certain cells in the immune system can quickly respond and try to destroy them.