1. Cell structure and function

2. Learning outcomes
Distinguish between prokaryotic and eukaryotic cells by description and examples
Identify the structure of animal cells and plant cells
Distinguish between animal cells and plant cells

3. Cell theory
Hooke, Leeuwenhoek, Schleiden, Schwann, Virchow led to the development of the cell theory.
All living things or organisms are made of cells and their products.
New cells are created by old cells dividing into two.
Cells are the basic building units of life.
All cells are enclosed by a semi-permeable membrane—plasma membrane
All cells (at some point) contain DNA

4. Cell size

5. Cell structure
Under the regular light microscope

6. Cell structure
Under the electron microscope

7. General cell structure
Cell wall—covering that supports, shapes, and protects cell
Plasma membrane—sheath around cytoplasm that regulates entrance and exit of molecules
Cytoplasma—the content of a cell
Organelle—small, membranous bodies, each with specific structure and function
Nucleus—an organelle enclosed by nuclear envelope. Store genetic material (DNA)

8. Prokaryotic cell
Bacteria(cyanobacteria) and archaea

9. Prokaryotic cells Prokaryotic cells— no nucleus
Prokaryotic cells— no organelle
Prokaryotic cells have nucleoid

10. Eukaryotic cells All organisms except bacteria and archaea
Eukaryotic cells— nucleus & organelles

12. Unique structure of plant cells— large central vacuole, cell wall, chloroplast

13. Chloroplast

14. Unique structure of animal cells—centrioles

15. Animal cell and plant cell
In common
Plasma membrane
Organelles—endoplasmic reticulum (ER); Golgi apparatus; mitochondrion; lysosome; peroxisome; vesicle
Ribosome
Nucleus
Cytoskeleton
Cilia & flagella

16. Plasma membrane

17. Nucleus – synthesis of DNA&RNA

18. Endoplasmic reticulum (ER)

19. Golgi Apparatus

20. Mitochondrion—energy center

21. Prepared slides
Elodea cell structure