Movement of a solvent (usually water) from a low solute concentration to a high solute concentration in order to equalize the concentration of the two solutions. No energy required.

Movement of both solvent and solute particles from high concentration to low concentration in order to equalize the concentration of the solution. No energy required.

Facilitated Diffusion

Movement of specific molecules down a concentration gradient (from high concentration to low concentration) passing through the membrane via a specific carrier protein. No energy required.

Movement of a substance across a cell membrane against its concentration gradient from lower concentration to higher concentration. Energy required.

Movement of very large molecules (into the cell) across the cell membrane through the fusion of vesicles. Energy required.

Movement of very large molecules (out of the cell) across the cell membrane through the fusion of vesicles. Energy required.

Substance dissolved in another substance.

The substance that dissolves another substance.

Concentration (amount) of solutes is equal on both sides of the cell membrane; this allows the flow of water through the cell membrane to be equal.

Concentration (amount) of solutes OUTSIDE of the cell membrane is GREATER than inside cell; this promotes a greater flow of water outside the cell thus leading to cell shrinking.

Concentration (amount) of solutes OUTSIDE of the cell membrane is LESS than inside the cell; this promotes a greater flow of water inside the cell thus leading to cell bursting.

process by which biological systems, including the cell, tend to maintain stability

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Bio Cell Transport

Cell Transport

Term	Definition
Osmosis	Movement of a solvent (usually water) from a low solute concentration to a high solute concentration in order to equalize the concentration of the two solutions. No energy required.
Diffusion	Movement of both solvent and solute particles from high concentration to low concentration in order to equalize the concentration of the solution. No energy required.
Facilitated Diffusion	Movement of specific molecules down a concentration gradient (from high concentration to low concentration) passing through the membrane via a specific carrier protein. No energy required.
Active Transport	Movement of a substance across a cell membrane against its concentration gradient from lower concentration to higher concentration. Energy required.
Endocytosis	Movement of very large molecules (into the cell) across the cell membrane through the fusion of vesicles. Energy required.
Exocytosis	Movement of very large molecules (out of the cell) across the cell membrane through the fusion of vesicles. Energy required.
Solute	Substance dissolved in another substance.
Solvent	The substance that dissolves another substance.
Isotonic solution	Concentration (amount) of solutes is equal on both sides of the cell membrane; this allows the flow of water through the cell membrane to be equal.
Hypertonic solution	Concentration (amount) of solutes OUTSIDE of the cell membrane is GREATER than inside cell; this promotes a greater flow of water outside the cell thus leading to cell shrinking.
Hypotonic solution	Concentration (amount) of solutes OUTSIDE of the cell membrane is LESS than inside the cell; this promotes a greater flow of water inside the cell thus leading to cell bursting.
Homeostasis	process by which biological systems, including the cell, tend to maintain stability

Created by: NEISDSci

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