11 Osmoregulation 1 Waste Disposal

11 Osmoregulation 1 Waste Disposal - CO 2 + H 2 O + NH 3...

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Osmoregulation and Excretion I. Waste Disposal II. Osmotic Regulation III. The Mammalian Kidney A. Overall Structure, Functions and Mechanisms B. The Nephron Segments C. How Urine is Concentrated D. Regulation of Kidney Function by Hormones
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Internal Exchange Surfaces in Complex Animals Fig. 40.4 .5 cm Nutrients Digestive system ining of small intestine Mouth Food External environment Animal body CO 2 O 2 Circulatory system Heart Respiratory system Cells Interstitial fluid Excretory system Anus Unabsorbed matter (feces) Metabolic waste products (nitrogenous waste) Kidney tubules 10 µm 50 µm Lung tissue
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Nutrient Ingested Nutrient Absorbed Metabolic Waste Carbohydrates Monosaccharides CO 2 + H 2 O Lipids Glycerol, fatty acids CO 2 + H 2 O Proteins Amino Acids
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Unformatted text preview: CO 2 + H 2 O + NH 3 Nucleic acidsNitrogenous bases, sugars CO 2 + H 2 O + NH 3 phosphates CO 2 : consumed via bicarbonate reaction CO 2 + H 2 O -> H 2 CO 3-> HCO 3- + H + (tissues) <- <- (lungs) (exhaled) H 2 O : osmotic balance NH 3 (ammonia): toxic! Metabolic Wastes Fig. 44.9: Nitrogenous Wastes Toxicity: High Moderate Low Solubility: Soluble Less Soluble Insoluble Fig. 44.9 Many reptiles (including birds), insects, land snails Ammonia Uric acid Urea Most aquatic animals, including most bony fishes Mammals, most amphibians, sharks, some bony fishes Nitrogenous bases Amino acids Proteins Nucleic acids Amino groups...
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11 Osmoregulation 1 Waste Disposal - CO 2 + H 2 O + NH 3...

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