Download Chap 4 sec 2 Fact Review Sheet

Chap 4 sec 2 Fact Review Sheet
Cell Wall:
1.
Eukaryotic cells have organelles that perform important functions.
2.
A Eukaryotic cell has many parts that help the cell stay alive.
3.
Eukaryotic cells are classified as plant and animal cells.
4.
Plants have an outermost structure called the cell wall.
5.
The plant cell wall is a ridged structure that gives support to a cell.
6.
The cell walls of plants, fungi, archaea, and bacteria can be made
of different materials.
7.
Plant and algae have a cell wall made of a complex sugar called
cellulose.
8.
The cellulose fibers are interwoven like a thin matt.
9.
The presence of a cell wall distinguishes the plant cell from the
animal cell.
Cell Membrane:
10. All cells have a cell membrane made up of proteins and lipids.
11. The cell membrane is a protective barrier that encloses a cell.
12. The cell membrane is the outmost structure of cells that lack a cell
wall.
13. In cells that have a cell wall, the cell membrane lies just inside the
cell wall.
14. The cell membrane has two layers of phospholipids.
15. A phospholipid is a type of lipid.
16. Each phospholipid has a hydrophobic, or “water fearing,” end and
a hydrophilic, or “water loving,” end. The “water fearing” ends
form the outer part of the membrane.
17. This structure makes it difficult for materials to pass through the
membrane.
18. Not allowing materials to pass through is one way the cell
membrane protects the cell.
19. Nutrients and wastes must pass through the cell membrane.
20. These materials are able to pass through passageways made of
proteins.
21. Nutrients move into the cell through this passageway and the
wastes move out through these protein passageways.