OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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decreased b cell activity
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decreased t cell activity
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increased helper t cell
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blocks helper t cell activity
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Detailed explanation-1: -Acquired immunodeficiency may be a complication of diseases such as HIV/AIDS and malnutrition (especially if the person does not eat enough protein). Many cancers may also cause immunodeficiency.
Detailed explanation-2: -CD4+T cells are white blood cells that play an important role in the body’s immune system. These cells are destroyed by HIV. Even when a HIV-positive person feels well and is not experiencing any symptoms of the disease, CD4+ T cells are being infected by HIV.
Detailed explanation-3: -Human Immunodeficiency Virus (HIV) specifically attacks Helper T cells. Without an adequate supply of Helper T cells, the immune system cannot signal B cells to produce antibodies or Cytotoxic T cells to kill infected cells.