metabolism		the molecule that all living things have; provides instructions for making proteins
DNA		acts a a barrier between the inside of the cell and the cell's environment
cytoplasm		rigid, outer covering of a plant cell
lysosomes		forms when part of the cell membrane surrounds an object and pinches off
eukaryotic		the maintanence of a stable internal environment
vesicles		special vesicles in animal cells that contain special enzymes; destroy worn-out or damaged organelles
Golgi complex		the fluid and almost everything in the cell
chloroplast		the organelle that produces ATP; considered the power plant of the cell
ribosomes		cells that have a nucleus
endoplasmic reticulum		the total of all the chemical activities an organism performs
vacuole		processes, packages, and transports materials sent to it from the endoplasmic reticulum
prokaryotic		found in plant cells; holds water and other liquids
cell wall		the power plant of plant and algae; contains chlorophyll
mitochondria		a living thing
nucleus		holds the cell's DNA and controls its activities
homeostasis		a change in an organism's environment that affects the activity of the organism
cell membrane		cells that don't have a nucleus
stimulus		structures inside of cells that enable them to live, grow, and reproduce
organism		the internal delivery system of the cell; make lipids and breaks down drugs
organelles		organelles inside the cell that make proteins