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You are reading an older version of this FlexBook® textbook: CK-12 Life Science Concepts For Middle School Go to the latest version.

2.1: Cell Biology

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

cell

cell

Basic unit of structure and function of a living organism; the basic unit of life.
cell theory

cell theory

Scientific theory that all living things are made up of cells, all life functions occur within cells, and all cells come from already existing cells.
electron microscope

electron microscope

Microscope that uses a beam of electrons to magnify an object.
microscope

microscope

An instrument that uses lenses to produce magnified images of small objects.
organ

organ

Tissues that work together to perform a specialized function.
organ system

organ system

Organs that work together to perform a certain function.
tissue

tissue

Groups of cells that work together to perform a specific function.

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Description

Difficulty Level:

At Grade

Grades:

7 , 8

Date Created:

Nov 29, 2012

Last Modified:

Jan 19, 2016
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