Biology Chapter 7

The basic unit of all life

• Nucleus

• Cell

• DNA

• Nuclear envelope

The fundamental concept of biology that states that all living things are composed of cells; that cells are the basic units of structure and function in living things; and that new cells are produced from existing cells.

• cell theory

• cell idea

• cellular concept

• the foundation

In cells, the structure that contains the cell’s genetic material in the form of DNA.

• nucleolus

• chromosome

• DNA

• nucleus

An organism whose cells contain a nucleus.

• prokaryote

• eukaryote

• organelle

• cell

A unicellular organism that lacks a nucleus.

• eukaryote

• cell

• organelle

• prokaryote

In eukaryotic cells, all cellular contents outside the nucleus; in prokaryotic cells, all of the cells’ contents.

• cytoskeleton

• cytoplasm

• cell membrane

• nuclear membrane

A specialized structure that performs important cellular functions within a cell.

• specialized cell

• tissue

• organelle

• eukaryote

A cell organelle that stores materials such as water, salts, proteins, and carbohydrates.

• vacuole

• lysosome

• ribosome

• vesicle

A cell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell.

• vesicle

• vacuole

• lysosome

• chloroplast

A network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement.

• centriole

• golgi apparatus

• lipid bilayer

• cytoskeleton