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402 Osmoregulation

Honors

TermDefinition
osmo- - osmosis
osmosis - Diffusion of water through a selectively permeable membrane
isotonic solution - a solution whose solute concentration is equal to the solute concentration inside a cell cells require that their environment be isotonic blood is an isotonic solution
hypotonic solution - A solution in which the concentration of solutes is less than that of the cell that resides in the solution because the solute concentration is higher in the cell, water rushes into the cell, causing the cell to expand and possible burst
hypertonic solution - A solution in which the concentration of solutes is greater than that of the cell that resides in the solution because of this, water rushes out of the cell This causes the cell to shrivel and potentially die
Osmoregulators - an animal that has mechanisms for keeping their body fluids isotonic relative to their cells they can live in environments with a different solute concentration than their body fluids and cells includes freshwater animals and land-dwelling animals
Osmoconformers - an animal whose body fluids have the same solute concentration as its environment common in marine invertebrates such as jellyfish and seastars must live in environments with a solute concentration that matches their body fluids and cells
the urinary system - part of the excretory system consists of the kidneys, ureters, and bladder the urinary system removes wastes from the blood it also regulates the amount of water and solutes in the blood this keeps the blood isotonic relative to the cells of the body
Created by: Mr. Ford
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