A&P Lab Diffusion/osmosis

Anatomy and physiology

14 cards   |   Total Attempts: 182
  

Cards In This Set

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Motion energy or energy that can do work
Kinetic energy
When the concentration of a substance differs from 1 point to another
Concentration gradient
The term used to the visible movement of large particles being hit by invisibly small molecules. The movement of the visible particles is evidence of the kinetic energy of the molecules.
Brownian Motion
The sum of the atomic weights of all the atoms in a molecule.
Molecular weight
Tendency for solute molecules to move from an area of high concentration to an area of low concentration
Diffusion
Determines how quicklly a cell can acquire nutrients or rid itself of waste, how quickly it diffuses
Diffusion rate
Only allows something to pass
Selectively permeability
Diffusion of water thru a membrane from a less concentrated solution to a more concentrated solution.
Osmosis
Solution that causes cells to shrink.
Hypertonic solution
Shrink or shrivel
Crenate
Solution that causes cells to swell
Hypotonic solution
Movement, due to a pressure difference of a liquid thru a filter that prevents some or all of the substances in the liquid from passing thru.
Filtration
Does not require ATP
Passive transport
Carrier mediated process that requires ATP and can move substances against a concentration gradient.
Active transport