1.
Cell: In biology, the smallest unit that can perform all life processes; cell's are covered by a membrane and contain DNA and cytoplasm
2.
Cell Theory: The theory that states that all living things are made up of one or more cells, that cells are the basic unit of organisms, that each cell in a multicellular organism has a specific job, and that cells come only from existing cells
3.
Cytoplasm: The region of the cell within the membrane that includes the fluid, the cytoskeleton, and all the organelles except the nucleus
4.
Cytosol: The soluble portion of the cytoplasm, which includes molecules and small particles, some are ribosomes, but not the organelle's covered with membranes
5.
Eukaryote: An organism made up of cells that have a nucleus enclosed by a membrane, multiple chromosomes, and a mitotic cycle; eukaryotes include animals, plants, and fungi, but not bacteria or archae
6.
Nucleus: In a eukaryotic cell, a membrane-bound organelle that contains the cell's DNA and that has a role in processes such as growth, metabolism, and reproduction
7.
Organ: A collection of tissues that carry out a specialized function of the body
8.
Organ System: A group of organs that accomplish related tasks
9.
Organelle: One of the small bodies that are found in the cytoplasm of a cell and that are specialized to perform a specific function
10.
Plasma Membrane: Or cell membrane, the cell's outer boundary
11.
Prokaryote: A single-celled organism that has no nucleus and and has no membrane-bound organelles; examples include bacteria and archaea
12.
Tissue: A collection of specialized cells and cell products that perform a specific function
