Biology Vocab Chapter 7.1-7.3

organelles

structures specialized to perform distinct processes within a cell

ribosomes

cell organelle consisting of RNA and protein found in the cytoplasm

golgi apparatus

organelle that modifies and sorts protein from ER

lysosomes

cell organelle that breaks down lipids

concentration

strong or weakness of an element

diffusion

process where particles move to a less concentrated area

equilibrium

where the concentration of the substance on both sides of the membrane is equal

osmosis

diffusion of water through a selectively permeable membrane

isotonic

when the concentration of two solutions is the same

hypotonic

when comparing two solutions, the one with the lesser concentration is

hypertonic

when comparing two solutions, the one with the greater concentration is

faciliated diffusion

process where molecules pass through cell membrane channels

active transport

process of molecules moving across the cell membrane using cellular energy

phagocytosis

type of endocytosis where cytoplasm surrounds a particle in a food vacuole

endocystosis

process of taking material into the cell by means of pockets of the cell membrane

exocytosis

movement from inside to outside of cell

pinocytosis

cell intake of water

passive transport

transport of a substance across a cell membrane by diffusion; expenditure of energy is not required