Term
| What are the 2 roles of the excretory system |
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Definition
Waste removal (N from protein break down in the form of NH3, Urea, Uric acid)
Osmoregulation H2O ion balance |
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Term
| Describe the solubility, toxicity, mL H2O/g N: Ammonia |
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Definition
| High, very toxic, 300-500mL |
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Term
| Describe the solubility, toxicity, mL H2O/g N: Urea |
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Definition
| Moderate, Not overly 50mL |
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Term
| Describe the solubility, toxicity, mL H2O/g N: Uric Acid |
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Definition
| Not very, not overly, 10mL |
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Term
| Marine fish tonicity of blood vs environment, urine vs blood, type of N waste, and source of new water |
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Definition
| Hypotonic, salt water is more stuff than blood, urine vs blood isotonic, NH3, drink sea water |
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Term
| Freshwater fish, Amphibian tonicity of blood vs environment, urine vs blood, type of N waste, and source of new water |
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Definition
| Hypertonic, H20 has less stuff than fish, hypotonic NH3 takes a lot of H20 out of blood, no need to drink |
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Term
| Desert mammal tonicity of blood vs environment, urine vs blood, type of N waste, and source of new water |
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Definition
| N/A but need to consume both, uruine is strongly hypertonic, doesn't take too much H2), urea, metabolic H2O mostly |
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Term
| Bird, Eureptile tonicity of blood vs environment, urine vs blood, type of N waste, and source of new water |
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Definition
| N/A must consume both, hypertonic urine vs blood, uric acid, doesn't take too much H2O, fresh water (marine species) |
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Term
| Name 5 non-kidney anatomies that contribute to osmoregulation, how do they work? |
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Definition
Salt glands in birds secret concentrations of salt so they can drink salt water,
Freshwater/metabolic H2O
Gills: Salt ion update and excretion occurs here
Epithelium: Uptake and excretion of ions in skin (for frogs)
Rectal glands: Actively transport Cl- with NA following. Gets rid of salt caused by drinking salt water. |
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Term
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Definition
| MOre stuff in surrounding than blood (or cell, whatever) Drains H2O from thing into environment |
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Term
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Definition
| MOre stuff in blood than surroundings, blood takes in H2O and may pop. |
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