Biology

Pinocytosis

Cell drinking

Phagocytosis

Process by which a cell engulfs a particle and digests it.

Passive Transport

Transferring substances without energy

Osmosis

When water passes through a semipermeable membrane in order to balance the concentrations

Isotonic

Cell has the same concentration on the inside and outside

Hypotonic

More solvent on the outside than the inside

Hypertonic

More solvent on the inside than the outside

Facilitated diffusion

Doesn’t require energy but uses proteins

Equilibrium

Concentration of molecules is the same throughout space

Endocytosis

Water concentration is higher outside the cell so it moves in.

Exocytosis

active transport that uses vesicles to remove waste and cell products

Diffusion

Passive transport from high to low concentration

Cytolysis

Cell bursts due to excess water.

Contractile vacuoles

help one celled organisms pump out excess water

Concentration gradient

Difference in concentration of molecules

Aquaporin

channel proteins for water

active transport

transferring substances using energy

Phag-

eating, consuming or destroying

-lysis

breakdown or dissolve

Hypo-

beneath or below

Hyper-

above

Exo-

outer

Endo-

inside

Cyt-

cell

Vesicle

Compartments separating contents from the cytoplasm

Turgor pressure

force of water on cell wall (plant uwilts)

sodium potassium pump

active transport pump that helps move materials from low to high concentration

Plasmolysis

cell pulls cell wall in (plant wilting)