4-cellsoutl - membrane & pores 2. endoplasmic...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Biol 3 Lecture: Organization of the Cell (Ch 4) © copyright 2011 Marta D. de Jesus I. Cells are usually too small to see A. measurements 1. use micrometers = microns (μm) 2. use nanometers (nm) B. microscopes 1. light microscope a. some of the kinds 1) brightfield 2) darkfield 3) contrast 4) fluorescent 5) confocal b. limitations: 2. electron microscopes a. kinds: 1) transmission electron (TEM) 2) scanning electron (SEM) b. images c. limitations: 3. newer: scanning probe (Note: section on cell fractionation - we’ll do in BIOL V04) II. Cell Types: 2 basic kinds : A. prokaryotic 1. name 2. body plan a. cell membrane b. cytoplasm with 70S ribosomes c. nuclear area/nucleoid
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
d. extra folded membrane e. flagellum f. fimbriae g. cell wall slime or capsule 4. relative size 5. 3 common shapes B. eukaryotic organelles 1. nucleus (found by Acetabularia grafting experiments -read!) chromosomes
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: membrane & pores 2. endoplasmic reticulum (ER) a. rough ER free 80S ribosomes b. smooth ER 3. Golgi complex/apparatus/body 4. vesicles & vacuoles a. food vacuole b. contractile vacuole c. plant central vacuole 5. lysosome 6. peroxisome 7. mitochondrion apoptosis 8. chloroplast plastids Side-track : symbiosis Endosymbiotic theory (Lynn Margulis) 1. Why do we think they were once separate organisms? 2. Was this recent? 9. cytoskeleton a. microtubules b. microfilaments c. intermediate filaments 10. centrioles centrosome 11. cilia & flagella 9 + 2 arrangement 12. plasma membrane 13. Outside the cell a. cell walls 1) prokaryotes 2) eukaryotes (i) chitin (ii) cellulose b. animal extracellular matrix (ECM) Cool cell video (animal cell; very dynamic) http://multimedia.mcb.harvard.edu/media.html...
View Full Document

This note was uploaded on 01/17/2012 for the course BIOL V04 taught by Professor De-jesus,m during the Fall '08 term at Ventura College.

Page1 / 3

4-cellsoutl - membrane & pores 2. endoplasmic...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online