Answer to Question 1
ANS: B
Bacteria killing is a complex mechanism, requiring activation of the neutrophil, ingestion of the bacterium, and incorporation into a phagosome. Cytoplasmic granules fuse with the lysosome and dump their contents. Myeloperoxidase, halides, hydrogen peroxide, and the formation of superoxide and oxygen radicals are all instrumental for killing. Also critical for killing is activation of proteinases such as cathepsin G.
Answer to Question 2
ANS: A
CD34 is found on the myeloblast and also the promyelocyte, but it is downregulated as the cell continues to mature and is not found on mature cells of any lineage.
Attack systems of pathogenic bacteria.
It is important to ask patients what other health care providers they are seeing, such as the dentis
Animal carcasses like this South African wildebeest provide important nutrition for both hunters and
This chart illustrates the “drip down” model of government. In this, politics is formed by the soc
Intracellular relationships involving the glyoxylate cycle in plant cells
Access to clean drinking water is just as important as adequate nutrition for human health