Cell Theory Flashcards
Cell
The basic unit of life. A part of a cell cannot make a whole cell; at least one whole cell is required to metabolize, maintain homeostasis and reproduce.
Cell Theory
A theory which states that all things are made of cells, cells are the smallest unit of life, and all cells come from preexisting cells.
Cytoplasm
The jelly-like substance found inside of a cell which holds all other organelles
DNA
A large molecule that contains all of an organism’s genetic information
Eukaryotic Cells
Type of cells which holds all of its genetic information (DNA) inside of a membrane-bound nucleus.
Organelle
A small, organized structure within a cell. A ribosome is an organelle found within both prokaryotic and eukaryotic cells; a nucleus is an organelle found within the eukaryotic, but not prokaryotic cells.
Organism
A single living thing, composed of one or more cells
Plasma Membrane
The membrane which surrounds the outer body of the cell and controls what can enter and exit the cell
Prokaryotic Cells
Type of cells which does not contain a nucleus
Scientific Theory
An explanation of an observation that has been rigorously tested
