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BIOL V04 Lecture: Cell Structure (C10-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
C. cell fractionation by centrifugation
1. differential
2. equilibrium
D. labeling
1. isotopic
2. visual
II. Cell Types:
© copyright 2015 Marta D. de Jesus
A. prokaryotic
1. name
2. body plan
4. relative size
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