Download CHAPTER3

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

page
1
page
2
page
3
page
4
page
5
page
6
page
7
page
8
page
9
page
10
page
11
page
12
page
13
page
14
page
15
page
16
page
17
page
18
page
19
page
20
page
21
page
22
page
23
page
24
page
25
page
26
page
27
page
28
page
29
page
30
page
31
page
32
page
33
page
34
page
35
page
36
page
37
page
38
page
39
page
40
page
41
page
42
page
43
page
44
page
45
page
46
page
47
page
48
page
49
page
50
Document related concepts
no text concepts found
Transcript 
CHAPTER 3
CELLS
• CELL BIOLOGY
• SIZE
– 7.5-500 MICROMETERS
• SHAPE
– DEPENDS ON?
• EUKARYOTIC/PROKARYOTIC ?
COMPOSITE CELL
http://picsicio.us/keyword/diagrams%20of%20cells/
CELL MEMBRANE
model974.net
FLUID MOSAIC MODEL
FLUID MOSAIC MODEL
• www.youtube.com/watch?v=GW0lqf4Fqpg
RECEPTOR PROTEINS
http://www.galaxy.com/rvw65745-401496/Clapham_Laboratory.htm
INTEGRAL PROTEIN
users.rcn.com
ENZYMES
http://biolibogy.com/images/structure_of_plasma_membrane.JPG
CELL ADHESION MOLECULES
bioweb.wku.edu
CELL SURFACE PROTEINS
http://biolibogy.com/images/structure_of_plasma_membrane.JPG
RIBOSOME
http://www.rbcarlton.com/19-Ribosomes.jpg
ER
http://liquidbio.pbworks.com/Matthew-Damstrom-Organelles-Project
VESSICLES
http://betarhythm.blogspot.com/2006/09/synaptic-vesicles-message-in-bottle.html
GOLGI APPARATUS
http://kvhs.nbed.nb.ca/gallant/biology/golgi_apparatus.jpg
Mitochondria
http://academic.brooklyn.cuny.edu/biology/bio4fv/page/mito.gif
Lysosomes
http://micro.magnet.fsu.edu/cells/lysosomes/images/lysosomesfigure1.jpg
Peroxisomes
http://micro.magnet.fsu.edu/cells/peroxisomes/images/peroxisomesfigure1.jpg
Centrosome/Centriole
http://micro.magnet.fsu.edu/cells/centrioles/images/centriolesfigure1.jpg
Microfilaments/Microtubules
http://kentsimmons.uwinnipeg.ca/cm1504/Image115.gif
Cell Nucleus
http://www.becomehealthynow.com/images/organs/cells/nucleus.jpg
Chromatin
http://micro.magnet.fsu.edu/cells/nucleus/images/chromatinstructurefigure1.jpg
Cell Transport
IMPORTANCE?
TYPES
DIFFERENCE?
Diffusion
http://upload.wikimedia.org/wikipedia/commons/6/66/Scheme_simple_diffusion_in_cell_membrane-de.png
Diffusion
http://www.pdh-odp.co.uk/images/Diffusion%20of%20Gases.jpg
http://www.williamsclass.com/SeventhScienceWork/ImagesCellBricks/facilitatedDiffusion.jpg
Osmosis
https://tedu556.wikispaces.com/file/view/osmosis.gif/32102067/osmosis.gif
Osmosis
http://biology.unm.edu/ccouncil/Biology_124/Images/tonicity1.jpeg
Filtration
Passive: can be
due to force
of gravity alone
http://herkules.oulu.fi/isbn9514264290/html/graphic55.png
http://www.accessexcellence.org/RC/VL/GG/ecb/ecb_images/12_04_passive_active_transport.jpg
Endocytosis
•Coming into the cell
•Pinocytosis
•Phagocytosis
Endocytosis
http://www.solvobiotech.com/Literature/Scienceletter/3/active_transport.jpg
Pinocytosis
http://www.yellowtang.org/images/receptor_mediate1_c_la_784.jpg
Phagocytosis
http://www.ingid.org/teaching-programmes/Introbasicimmune/phagoc1.jpg
Receptor Mediated Endocytosis
http://219.221.200.61/ywwy/zbsw(E)/pic/ech5-19.jpg
Exocytosis
http://s3.images.com/huge.96.481383.JPG
Transcytosis
http://www.google.com/imgres?imgurl=http://media.wiley.com/wires/WNAN/WNAN73/nfig003.gif&imgrefurl=http://wires.wiley.com/remdoi.cgi%3Fdoi%3D10.1002/wnan.73&usg
Cell Cycle
•
•
•
•
Interphase
Mitosis- PMAT
Cytoplasmic division
Differentiation
Interphase
http://www.obgynacademy.com/basicsciences
/fetology/genetics/
Mitosis
Prophase
Metaphase
Anaphase
Telophase
Prophase
http://legacy.owensboro.kctcs.edu/gcaplan/anat/images/Image173.gif
Metaphase
http://wps.aw.com/wps/media/objects/443/453744/metaphase.html
Anaphase
http://micro.magnet.fsu.edu/micro/gallery/mitosis/earlyanaphase.html
Telophase
http://botit.botany.wisc.edu/images/130/mitosis/allium_root_prep._slides/telophase_cytokinesis.html
Cytoplasmic Division
http://www.bing.com/images/search?q=cytoplasmic+division&FORM=BIFD&adlt=strict
#
CELL DIVISION CONTROL
•
•
•
•
•
•
•
VARIES BY ?
~50 X
TELOMERES
STRESS CAN SHORTEN LIFESPAN
KINASES AND CYCLINS
CELL SIZE ?
EXTERNAL CONTROLS: HORMONES, GROWTH
FACTORS
• SPACE
– CONTACT INHIBITION
• INFREQUENT MITOSIS =
• TOO FRQUENT
– TUMOR
•
•
•
•
BENIGN
MALIGNANT: METASTISIZE
ONCOGENES
TUMOR SUPRESSOR GENES
STEM CELLS
DIFFERENTIATION
STEM CELL-> STEM CELL OR PROGENITOR CELL
PROGENITOR CELL:
TOTIPOTENT STEM CELL
PLURIPOTENT STEM CELL
MOST ORGANS HAVE PLURIPOTENT STEM CELLS
OR PROGENITOR CELLS
HOW DO CELLS IN BODY DIFFER?
CELL DEATH
•
•
•
•
APOPTOSIS
PROGRAMMED CELL DEATH
EMBRYO
DEATH RECEPTOR RELEASES ENZYMES: CASPASES
–
–
–
–
–
–
DESTROY DNA REPLICATION ANDS REPAIR ENZYMES
ACTIVATE ENZYMES THAT SNIP UP DNA
DISSOLVE CYTOSKELETON
DESTROY MITOCHONDRIA ?
SEPARATE CELLS
MEMBRANE TRIGGERS TO ATTRACT PHAGOCYTES
APOPTOSIS
CELL HAS CIRCULAR SHAPE; BULGES: BLEBS; NUCLEUS SHATTERS; CELL SHATTERS;
CELL FRAGMENTS ENCAPSULATE SO NO INFLAMMATION; GONE
Necrosis
http://herkules.oulu.fi/isbn9514266676/html/graphic11.jpe
Related documents