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Explain the Radioactive Red Blood Cells
In order to make red blood cells radioactive, tagging of red blood cells with radioactive chromium (51cr) is done. A small quantity of 51cr is mixed with a few milliliters of blood removed from the person and this is incubated at 36°C for half an hour or more. After this time, most of the 51cr will have entered the red blood cells, but to remove the extra chromium from the mixture, the red blood cells are washed with saline. The total content of 51cr is then determined with a Geiger or scintillation counter (apparatus for measuring the total number of radioactive disintegrations occurring in the sample per minute). Then the radioactive cells are re-injected in the person. After mixing in the circulatory system for approximately 10 minutes, blood sample is taken from the circulatory system, and the radioactivity in this blood is determined, using dilution formula given above in dilution principle. Then actual volume is calculated i.e.
Actual blood volume = 1.1 x Measured blood volume
Explain Sneezing Reflex Actions - Respiratory Process This reflex is an involuntary, sudden, violent and audible expulsion of air through the mouth and nose. Usually irritation
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Properties Some of the important physico-chemical characteristics of riboflavin are as follows: a) Riboflavin forms needle shaped orange crystals. b) It is sparingl
Biological Basis of Aggression: Studies show that mild electrical stimulation of a specific region of the hypothalamus - produces aggressive behaviour in animals. When a cat'
what is atom
What determines sinking and floating? Shape a piece of lead, tin or aluminium foil into the form of a little boat and float it on the water in a pan; now wad the metal foil fro
Determine about the endodynamorphic soils There are instances where the effect of climate is subdued or masked by the parent material. Soils formed under such conditions where
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Explain the Urinary Bladder The urinary bladder is a sac, which acts as a reservoir for urine. You would realize that the size and position of the urinary bladder varies depend
Purpose To assess your ability to conduct quantitative data analysis and interpret the results of data analysis introduced inForecasting Trend. To assess your ability to
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