Organelles

1. Plasma Membrane – a selective barrier, allowing passage of Oxygen, nutrients, and wastes.

2. Centrioles – only in animal cells, stack of microtubules for use during mitosis.

3. Nucleus – contains most of the genes (DNA) that control the cell.

4. Nuclear Envelope - the double membrane that encloses the nucleus.

5. Nucleolus – ribosomal subunits are made here.

6. Chromatin – strands containing DNA (genes) along with associated protein.

7. Rough Endoplasmic Reticulum (RER) – “within” “made of PLB” “folded” has ribosomes.

8. Smooth Endoplasmic Reticulum (SER) – membranous tubules and sacs important in lipid metabolism.

9. Ribosomes – where proteins are synthesized (made).

10. Mitochondria – carries out cellular respiration making ATP by breaking down sugar.

11. Lysosome – (animals) "break apart" "body" ,like the stomach of the cell it contains digestive enzymes.

12. Peroxisome – a microbody (vessicle) that breaks down and recycles membranes.

13. Golgi Apparatus - modifies, stores, and repackages products of the ER, mostly for secretion. "post office of the cell"

14. Microtubules – cylindrical protein in the cytoskeleton (give the cell shape) and cilia and flagella.

15. Microfilaments – very thin threadlike protein in the cytoskeleton and cell movement.