How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
Chapter 7 Cell Structure and Function:Section 1 Life is Cellular
basic unit of life
1. All living things are composed of cells
2. Cells are the basic units of structure and function in living things.
3. New cells are produced from existing cells.
a thin, flexible barrier around the cell
a strong layer around the cell membrane
a large structure that contains the cell's genetic material and controls the cell's activities
the material inside the cell membrane-but not including the nucleus
single-celled microorganism that lacks a nucleus
organosm whose cells contain a nuclei
specialized structure that performs important cellular functions within a eukaryotic cell
Prokaryotes and Eukaryotes (KEY CONCEPTS)
Biologists divide cells into two categories: eukaryotes and prokaryotes. The cells of Eukaryotes have a nucleus, but the cells of prokaryote do not.