Cell

Cell membrane

A thin, outside covering surrounding the cell

Bacteria

one-celled living things; just one is called bacterium

Cell Wall

a thick covering outside the cell membranes of plant cells and bacteria

nucleus

a central structure inside plant and animal cells that contain chromosomes; the control center of the cells

Chromosomes

structures that make up chromosomes and controls many cell activities

the material that fills a cell and surrounds the nucleus and organelles

organelle

a tiny structure inside cells that performs a certain job

ribosomes

a cell organelle involved in making proteins

proteins

a type of chemical that is one of the most important building blocks of cells

endoplasmic reticulum

an organelle that changes and packages proteins

Golgi body

an organelle that packages proteins for use inside or outside the cell

mitochondria

A "power-house" of cells. An organelle that provides cells with the energy they need.

chloroplasts

An organelle found in plant cells that captures light energy and uses it to make food

vaculoes

a cell organelle that stores substances such as food or waste

cytoskeleton

A network of strands that form a supportive framework inside cells.

cell division

The process by which cells produce two new cells identical to the organelle

mitosis

The part of cell division in which duplicated chromosomes separate and move apart

tissues

A group of cells that perform the same type of job.

organs

A structure such as the heart or brain that is made up of several kinds of tissues working together.

nutrients

a chemical substance that living things need to live and grow

Cell culturing

A group of cells grown outside the body in test tubes in glass dishes.