Lecture 18 osmoregulation and excretion posted

Lecture 18 osmoregulation and excretion posted - BIO 311D...

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BIO 311D LECTURE 18 Osmoregulation and excretion
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Osmoregulation Cytoplasm interstitial fluid blood
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Osmoconformers and osmoregulators Osmolarity Hypoosmotic Hyperosmotic Isoosmotic Osmoconformers Osmoregulators
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Marine Animals
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Gain of water and salt ions from food and by drinking seawater Osmotic water loss through gills and other parts of body surface Excretion of salt ions from gills Excretion of salt ions and small amounts of water in scanty urine from kidneys
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Freshwater Animals Uptake of water and some ions in food Osmotic water gain through gills and other parts of body surface Uptake of salt ions by gills Excretion of large amounts of water in dilute urine from kidneys
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Animals That Live in Temporary Waters
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Water balance on land… Body coverings Behavior Metabolic water
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Desert animals
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Transport epithelia The ‘Casparian strip’ in animals. Tubular networks
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Nitrogenous wastes Breakdown of proteins and nucleic acids Ammonia is secreted: Directly Converted Conversion of ammonia Ammonia Urea Uric acid
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