Cells & Viruses Vocabulary

Front

An organism that lacks a true nucleus and membrane-bound organelles

Back

prokaryote

Front

An organism whose cells contain a true nucleus and membrane-bound organelles

Back

eukaryote

Front

The organelle where a eukaryotic organism's genetic material is located; the control center of the cell

Back

nucleus

Front

A structure made of protein that converts messenger RNA sequences into amino acid sequences with the help of transfer RNAs

Back

ribosome

Front

The basic structural and functional unit of living organisms

Back

cell

Front

A lipid bilayer that surrounds the cytoplasm of a cell, separating the inside of the cell from the environment and controlling what enters and leaves the cell

Back

cell membrane

Front

An organelle that functions in energy production; the power factory of the cell

Back

mitochondria

Front

A structure inside a cell that performs a specific function or set of functions

Back

organelle

Front

The jellylike material that holds the nucleus, organelles, and other components of the cell

Back

cytoplasm

Front

The theory that several key organelles found in eukaryotes originated as a symbiosis between separate single-celled organisms

Back

endosymbiotic theory