Human immunodeficiency virus HIV binds specificall

ATI RN

ATI RN Test Bank

Human immunodeficiency virus (HIV) binds specifically to which immune cell marker?

A. CD8 B. MHC C. CDC D. CD4

Correct Answer: D

Rationale: HIV targets CD4 on T-helper cells; not CD8 , MHC , or others (C, E).

Which of the following cells is involved in humoral immunity??

A. Both T and B cells B. Mast cells C. T-cells D. B-cells

Correct Answer: D

Rationale: B-cells produce antibodies for humoral immunity; T cells are cell-mediated.

Specific immunity can be acquired either naturally or artificially and involves

A. All of the below B. antibodies C. antigens D. the classical complement pathway

Correct Answer: A

Rationale: Specific immunity (adaptive) involves antigens (trigger), antibodies (response), and complement pathways, making all options relevant.

Examples of pathogens that cause human disease include:

A. bacteria B. viruses C. fungi D. all the above

Correct Answer: D

Rationale: All of the above are examples of pathogens that cause human disease, including bacteria, viruses, fungi, and parasites.

Precursors of macrophages are called

A. T cells B. killer cells C. B cells D. monocytes

Correct Answer: D

Rationale: Monocytes differentiate into macrophages; T , B , and plasma cells are distinct.

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