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Ch. 3 Cells

TermDefinition
Cell
The smallest functional and structural unit of all living organisms usually consists of a nucleus and a membrane.
Cell membrane A phospholipid layer that covers a cells surface; acts as a barrier between the inside of a cell and the cells environment.
Organelle One of the small bodies in a cells cytoplasm that are specialized to perform a specific function.
Nucleus In a eukaryotic cell, a membrane-bound organelle that contains the cells DNA and that has a role in processes such as growth, metabolism, and reproduction.
Prokaryote An organism that consists of a single cell that does not have a nucleus.
Eukaryote An organism made up of cells that have a nucleus enclosed by a membrane; eukaryotes include animals, plants, and fungi, but not archaea or bacteria.
Cell wall A rigid structure that surrounds the cell membrane and provides support to the cell.
Lysosomes A cell organelle that contains digestive enzymes
Mitochondria In the eukaryotic cells the cell organelle that is surrounded by two membranes and is the site of cellar respiration
Created by: Daisy.day