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Answers:
A. 50-70% - neutrophils
B. 20-40% - Lymphocytes
C. 2-8% - monocytes
D. 1-4% - eosinophils
E. < 1% - basophils
Explanation:
The blood differential test is used to estimate the percentage of each class of white blood cell (WBC) present in the blood and to indicate the presence of abnormal or immature cells.
The Test is Performed by taking of blood sample which is smeared onto a glass slide, then it's stained with a unique dye to indicate the class of white blood cells.
The Five class of white blood cells are
Neutrophils
Lymphocytes (B cells and T cells)
Monocytes
Eosinophils
Basophils
The different class of white blood cells are given as a percentage:
Neutrophils: 40% to 60%
Lymphocytes: 20% to 40%
Monocytes: 2% to 8%
Eosinophils: 1% to 4%
Basophils: 0.5% to 1%
Band (young neutrophil): 0% to 3%
Answer:
C. "Using the sodium-potassium pump involves the hydrolysis of ATP and the
release of Nat to the outside of the cell."
Explanation:
The use of a sodium-potassium pump is a form of active transport, not diffusion. It also requires energy because the pump moves ions against their concentration gradient (low to high), unlike diffusion.
D
Explanation:
Flowing water has intrinsic kinetic energy that is harnessed to rotate the turbine. The turbine rotates hence gains mechanical energy because it is doing work. This work is used to rotate a dynamo of a generator which generates electricity. The mechanical energy is thus converted into electric energy by the dynamo. The electric energy is then carried by the power lines to the users.
Answer:
In which phase of mitosis do chromosomes align at the center and spindle fibers become visible? Explanation: Mitosis involves four distinct stages: prophase, metaphase, anaphase, and telophase. Prophase is the first step of mitosis, during which chromosomes condense and the nuclear envelope dissolves.
