Leukocyte/Lymphocyte

[blackandgold1]

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Passage states "Leukemia is a form of cancer that affects leukocytes (white blood cells)"

Leukemia affects the cell responsible for which aspect of the immune system?

A. Non specific
B. Specific
C. Both
D. Neither

Since it stated only leukocytes with no specific type listed, I assumed it was all leukocytes, so I chose "both" since macrophages are non specific while B/Tcells are specific, and both cell types are considered to be leukocytes. However, the answer is "specific".

Can anyone explain?

 

[jissho]

Cells responsible for the innate and specific immune response differentiate from pluripotent hematopoetic stems cells in the bone marrow.

These cells give rise to common lymphoid progenitor cells which form B cells T cells and natural killer cells. Common myeloid progenitor cells give rise to macrophages and other cells. Leukemia arises from defects in either or both aforementioned cell types so there needs to be some additional information in the passage to justify an answer.

 

[blackandgold1]

Thanks for the reply. Thats the reason I was confused, because the passage offers NO other information on if it was a lymphocyte (which would justify their answer) or some other cell type involved. But it was a kaplan qbank question, so maybe kaplan just made a mistake, bc I've caught a few other mistakes in their practice stuff.

 

[flodhi1]

Thanks for the reply. Thats the reason I was confused, because the passage offers NO other information on if it was a lymphocyte (which would justify their answer) or some other cell type involved. But it was a kaplan qbank question, so maybe kaplan just made a mistake, bc I've caught a few other mistakes in their practice stuff.

If that's all the information you were given I would honestly go with BOTH.