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There is no store for nitrogen-having compounds as there is for carbohydrate (glycogen) or lipids (triacylglycerol). Thus nitrogen ingested in excess of what is required through the organism has to be excreted. The excess nitrogen is first transformed into ammonia and is then excreted from living organisms in one of three ways. Various aquatic animals simply excrete the ammonia itself straightly into the surrounding water. The Birds and terrestrial reptiles excrete the ammonia in the form of uric acid, though most terrestrial vertebrates convert the ammonia into urea before excretion. These three classes of organisms are called as: ureotelic, ammonotelic and uricotelic, respectively.
Amount of intracellular chloride ions in neuron A Neuron A is a healthy neuron with all the usual ion channels. When at rest with a membrane voltage of R millivolts, neuron A
Q. Define the Purposes of Counselling? 1. Supporting individuals to take charge of their own life by: Providing information; Facilitating emotional adjustments; and
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Q. In sickle cell anemia, a hereditary disease, there is replacement of one amino acid by another in one of the four polypeptide chains of hemoglobin. In this case are all of the s
What is the hydrogen ion concentration of stomach acid pH=1.6?
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Explain the Effect of Deficiency of Vitamin E? Fortunately, vitamin E deficiency in human is extremely rare. This may probably be due to its wide occurrence. in natural foods a
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