Question

please help me with these 4 questions i will give a tumbs up thanksss

HIV Infections and AIDS - Question 11 of 15. Infection with HIV a. Generally progresses to AIDS after 8 to 10 years, because the virus replicates slowly within the body b. Attacks a specific type of immune system cell called CD4 c. Destroys the cells in which it replicates d. All of the above

Answer 1

First question Answer: Option D. All of the above. All are the characteristics of HIV infection.

Second question Answer: Option D. All of the above

Third question answer: Option C. Immune system begins to breakdown once a certain number of T- helper cells are destroyed.

Because T-helper cells have important role in immunity. This helper T-cell helps in activation of B cells to produce antibodies and to macrophages to destroy ingested microbes. And also helps to activate cytotoxic T cells to kill infected target cells. So once t- helper cells are destroyed it will affect the entire immune system.

Option A incorrect. Because Immune system is the first line of defence.

Option B incorrect. It is coming as second line of response, first the T- helper cells initiate immune response by activating b cells to produce antibodies.

Fourth Question. Option D. All of the above. All are the benefits of rapid test