Organism		the outer boundary of the cytoplasm, a layer that controls what enters or leaves the cells
Unicellular		an instrument that uses glass lenses to magnify an object
Multicellular		the specific organization of a cell and its structure that allows it to perform a specific function
Bacteria		a thick, gelatin-like material contained within the cell membrane. Most of the work of the cell is carried out here.
Cell Membrane		a large group of one-celled organisms that sometimes cause disease
Cytoplasm		organelles that release energy by using oxygen to break down suga
Nucleus		a group of similar cells that are organized to do a specific job
Eukaryotic Cell		the structure in a eukaryotic cell that carries the genetic material the cell needs to reproduce and function
Prokaryotic Cell		a structure in a cell that is enclosed by a membrane and that performs a particular function
Organelle		an organelle in a plant cell that contains chlorophyll, a chemical that uses the energy from sunlight to make sugar
Cell Wall		a protective outer covering that lies just outside the cell membrane of a plant cell
Chloroplast		a term used to describe an organism that is made up of a single cell
Mitochondria		an individual living thing, made up of one or many cells, that is capable of growing and reproducing
Specialization		a cell in which genetic material is enclosed within a nucleus, surrounded by its own membrane
Tissue		a cell that lacks a nucleus and other organelles, with DNA that is not organized into chromosomes
Organ		a structure in a plant or animal that is made up of different tissues working together to perform a particular function
Microscope		a term used to describe an organism that is made up of many cells