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24 Cards in this Set
- Front
- Back
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movement of water (not particles)
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osmoregulation
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process of the body ridding nitrogenous material and waste product
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excretion
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after excretion ____ is released
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ammonia
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osmoregulation moves by osmosis which is
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movement of water from high concentration of particles to low concentration of particles
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osmosis occurs when
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there is a difference of osmolarity (osmotic pressure)
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two solutions separated by a membrane that have the same osmolarity
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isoosmotic
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hyperosmotic
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has more solutes than surroundings so water rushes in
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hypoosmotic
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less concentration than surroundings so water rushes out
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being isoosmotic with its surroundings
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osmoconformer
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controls its internal osmolarity independent to surroundings
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osmoregulator
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marine animals that never lose or gain water
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osmoconformers
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fresh water and terrestrial animals that discharge water
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osmoregulators
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osmoconformer or osmoregulator that cannot tolerate big changes in osmolarity
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stenohaline
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osmoconformer or osmoregulator that can survive large flucturations
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euryhaline
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if cell is hypertonic, the environment is
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hypotonic
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osmosis is
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passive
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diffusion is
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movement of solutes from high concentration to lower concentration; passive or facilitated
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hyperpolarization happens when
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sodium and potassium rush out of cell and get more negative
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nephron
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functional unit of kidneys that balances concentration of water and solutes
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tube apart of nephron that creates conc gradient
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loop of henle
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resting potential
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no movement of ions in and out of membrane
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action potential begins and cell voltage spikes up!
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threshold
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arthopods, snails, and clams have what kind of circulatory system?
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open
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annelids, squids, echinoderms, vertebrates have what kind of circulatory system?
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closed
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