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Invertebrates - Osmotic and Ionic Regulation
Regulation of water and ions in invertebrates is done by neuroendocrine mechanism. It operates at the level of Malpighian tubules and the rectum in insects. A neurosecretory substance termed, diuretic hormone inhibits water resorption from the rectum and also stimulates water uptake by the Malpighian tubules.
In some insects an antidiuretic hormone lowers the rate of water output by the tubules and increases water absorption by the rectum. Another neurosecretory hormone termed Chloride transport stimulating hormone is known to regulate electrolyte balance in insects. It causes a two-to-three fold increase in cyclic AMP levels in the rectal tissues, which in turn activates the chloride pump of the rectal cells, actively transporting chloride ions into the haemocoel.
Define Procedure for Standardization of HCl for Saponification Number of Fats? Precisely weigh 2.65 g of anhydrous sodium carbonate and transfer it to 100 ml volumetric flask.
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Explain Negative Staining Technique? Here, a stain has a negatively charged chromophore that is repelled by the negative bacterial surface. It results in indirect staining of m
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Q. What is Normalisation of Inverted T-Waves? In patients with flat or inverted T-waves at rest, the evolution to an upright T-wave has been considered by some to be a sign of
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