Lab 5 Flashcards
Active process
requires ATP ( energy) to transport substances across the plasma membrane
Passive process
does not requires the cell to expend energy because the kinetic energy of the particles causes them to move from an area of their higher concentration to an their lower concentration.
Concentration gradient
indicates there is a difference in the concentration of molecules or ions inside the cell(intracellular)compared to the outside of the cell( extracellular)
Osmosis
the diffusion of water across a semipermeable membrane to equalized solute concentration
Solvent
dissolving medium which is water in living organisms
Solute
substance dissolved in solvent
Crenated
shriveled with spiked edges
Hemolysis
the breaking down of blood
lyses
What substances were used in the lab?
Red 40% Sucrose solution
Distilled water
What do you observed in the lab and why
Water rushed into the dialysis tubing because there was a higher solute concentration.The rushing water makes the dialysis tubing’s overall mass to increase. This change was due to osmosis.