1. Organelles
Learning Goal 2

2. Organelles in the Nucleus
Nuclear Envelope:
A membrane that surrounds the nucleus and controls what can enter and leave
Chromatin:
DNA
codes for proteins
Nucleolus:
Dark circle in the center of the nucleus
Ribosomes (another organelle) are made here

3. Review What 3 organelles make up the nucleus? Which one is the DNA?
Which one makes Ribosomes?

4. Organelles in the Cytoplasm
Ribosomes
Tiny little dots
Make proteins
Rough Endoplasmic Reticulum (ER)
Noodles with ribosomes all over it
Proteins made here
Smooth ER
Noodles without ribosomes
Make lipids (fats, oils, waxes, cell membrane)
Golgi Apparatus
Stack of pancakes
Packages proteins for storage or shipping

5. Review Which organelle makes proteins?
Where do they make the proteins?
Where do the proteins go to get packaged and shipped?

6. Organelles in the Cytoplasm
Mitochondria
Produces energy (from sugar) for the cell
Chloroplasts
Uses sunlight to make sugar in PLANT CELLS ONLY

7. Organelles: Cell Boundaries
Cell Membrane
Flexible barrier made up of a lipid bi-layer
Controls what enters and exits the cell
Cell Wall
Supports, protects, and shapes PLANT CELLS ONLY
More stiff than cell membrane

8. Review Which organelle makes sugar from sunlight?
Which organelle makes energy from sugar?
What organelles are only in plant cells?
What is the difference between a cell membrane and a cell wall?