T lymphocytes are produced by

ATI RN

ATI RN Test Bank

T lymphocytes are produced by:

A. Bone marrow B. Thymus gland C. Spleen D. Both a and b

Correct Answer: B

Rationale: T cells mature in the thymus ; produced in bone marrow.

Which immunoglobulin is the least prevalent?

A. IgA B. IgD C. IgE D. IgM

Correct Answer: C

Rationale: IgE is the least prevalent, primarily involved in allergies and parasite defense.

Which of the following pairs of associations is mismatched?

A. large granular lymphocyte: T cell B. megakaryocyte: platelet C. B cell: plasma cell D. monocyte: macrophage

Correct Answer: A

Rationale: Large granular lymphocytes are NK cells, not T cells, which are typically smaller.

Which type of surface marker is present on every nucleated cell in your body?

A. B receptor B. T receptor C. MHC-I D. MHC-II

Correct Answer: C

Rationale: MHC-I is on all nucleated cells; MHC-II is on APCs, receptors (A, B) are specific.

Which type of antigen-presenting molecule is found on all nucleated cells?

A. MHC II B. MHC I C. antibodies D. B-cell receptors

Correct Answer: B

Rationale: MHC I is on all nucleated cells; MHC II is on APCs.

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