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BIOL V03 Lecture: Cell Structure (Ch 6)
I. Cells are usually too small to see
A. measurements
1.
2.
B. microscopes
1. light microscope
a. some of the kinds
1) brightfield
2) contrast
3) fluorescent
4) computer enhanced:
confocal
deconvolution
super-resolution
5) darkfield
b. limitation
2. electron microscope
a. the 2 most common kinds:
1) transmission electron
2) scanning electron
)
b. images
c. limitations
3. scanning probe
one eg: atomic force microscope
(skip section on cell fractionation until BIOL V04)
II. Cell Types:
A. prokaryotic
1. name
2. body plan
4. relative size
© copyright 2014 Marta D. de Jesus
5. 3 common shapes
B. eukaryotic
organelles
1. nucleus
2. endoplasmic reticulum
a. rough ER
b. smooth ER
3. Golgi complex/apparatus
4. vesicles & vacuoles
a. transport
b. secretory
c. food vacuole
5. lysosome
6. contractile vacuole
7. plant central vacuole
8. peroxisome
9. mitochondrion
10. chloroplast
Side-track: symbiosis
endosymbiosis
11. cytoskeleton
a. microtubules
b. microfilments
c. intermediate filaments
motor proteins
12. centrioles
13. cilia & flagella
14. plasma membrane
15. Outside the cell
a. cell walls
1) prokaryotes
2) eukaryotes
b. ECM animals
16. connections between cells
a. plant: plasmodesmata
b. animal: tight junctions
desmosomes
gap junctions
Cool cell video (animal cell; very dynamic)
http://multimedia.mcb.harvard.edu/media.html