Cell Organelles 1-8 Page 42

1. Cell Membrane Structure surrounding all cells. Controls what molecules may enter and/or exit the cell.

2. Cytoplasm Found in all cells. Jelly-like substance. Semi-liquid medium that makes up the most of the cell. Contains enzymes & nutrients that help reactions occur.

3. DNA Found in all cells. Contains the genetic information required for life. DNA codes for proteins Prokaryotes: 1 circular strand called a PLASMID Eukaryotes: Many linear, double helix strands in the form of chromatin(uncoiled) and chromosomes (coiled)

4. Nucleus Found in all eukaryotes. Surrounded by the nuclear membrane-a double membrane with many nuclear pores to allow proteins and RNA to travel between the nucleus and cytoplasm. contains DNA.

5. Nucleolus Inside the nucleus produces ribosomes.

6.Endoplasmic Reticulum (ER) Found in all eukaryotes. Where proteins travel after being produced by ribosomes. Rough-Protein Synthesis Smooth-Lipid Synthesis- new membranes

7. Golgi Apparatus Found in all eukaryotes. Modifies, packages,and transports “stuff” in and out of the cell.

8. Lysosome Found in animal cells. Digests food molecules. Destroys worn-out cell parts.