1. Even More Cell Parts Do Now: A certain chemical stops the ability of cells to put amino acids together to build macromolecules. Which of the following cell parts would be most DIRECTLY affected? A.Nucleus B.Cell membrane C.Endoplasmic reticulum D.Ribosomes

4. Golgi Structure: folded membranes Function: label proteins so they get delivered to the right places.

5. Lysosomes

6. Structure: Membrane covered sphere containing hydrolytic digestive enzymes Function: Break down food and old cell parts.

7. Mitochondria Structure: double- membrane with lots of enzymes inside Function: Provide energy for the cell by breaking down food

8. Fun Mitochondria Stuff Mitochondria have their own DNA and reproduce all by themselves – independent from the cell they are in. Mitochondria make their own proteins using their own ribosomes

9. Endosymbiosis

10. Homework For tomorrow: Read “Mitochondria,” “Golgi,” and “Lysosomes” pp. 76-79. No written questions.