Cell PEOPLE, Cell Size, and Cell Specialization Chap 7-1

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Cell PEOPLE, Cell Size, and Cell Specialization
Chap 7-1
http//www.parlament-berlin.de/Galeriecopy.nsf/0/8
ABC720262898739C1256A480037F869?OpenDocumen http/
/www.ncu.edu.tw/ls/graph/faculty_pictures/whole_t
ime/SLC/SLC_lab-1.jpg t
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1665- ______________________ used a microscope to
examine a thin slice of cork and saw little
boxes
Robert Hooke
He called them CELLS because they looked like
the small rooms that monks lived in called Cells
Microscope image http//www.answers.com/topic/mic
roscopeCork image http//www.cortex.de/img_kork/
cork_cells_big.jpg Hooke image
http//www.metaweb.com/wiki/upload/5/5c/Hookeyoung
mtwb.jpg
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1673- ___________________________________ a Dutch
microscope maker was the first to see LIVING
ORGANISMS.
Anton van Leeuwenhoek
Microscope/Leeuwenhoek image http//www.answers.c
om/topic/microscopeAnimation from
http//web.jjay.cuny.edu/acarpi/NSC/13-cells.htm
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1838-German botanist __________________________c
oncluded that ALL PLANTS are made of cells
Matthias Schleiden
Plant image http//www.epa.gov/maia/images/classi
fication.gifSchleiden image http//web.visionlea
rning.com/events/Schleiden_Apr5_2005.htm
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1839-German zoologist _________________________co
ncluded that
Theodor Schwann
ALL ANIMALS ARE MADE OF CELLS

• Schwann image http//home.tiscalinet.ch/biografie
  n/biografien/schwann.htm
• Animals image http//animaldiversity.ummz.umich.
  edu/index.htm

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1855- German medical doctor ____________________
_ saw dividing cells in the microscope and
reasoned that cells come from other cells
Rudolph Virchow
Virchow http//www.parlament-berlin.de/Galeriecop
y.nsf/0/8ABC720262898739C1256A480037F869?OpenDocum
ent Mitosis http//biology.dbs.umt.edu/biol101/l
abs/lab_6_images/sect01and06/Rebecca,20tanner,20
and20liam20mitosis20root20tip.jpg
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CELL THEORY

• 1. All living things are ________________________.

MADE OF CELLS
2. Cells are the basic unit of ____________
_____________ in an organism. (cell basic
unit of _____________)
STRUCTURE FUNCTION
life
3. Cells come from the reproduction of
____________ cells
existing
Cell image http//waynesword.palomar.edu/lmexer1a
.htm
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1970- American Biologist _____________________ pr
ovides evidence for the idea that certain
organelles within cells were once free-living
cells themselves. _________________________
Lynn Margulis
ENDOSYMBIOTIC THEORY
http//en.wikipedia.org/wiki/Lynn_Margulis
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ENDOSYMBIOTIC THEORY
See a movie about ENDOSYMBIOTIC THEORY
http//www.mun.ca/biology/scarr/Endosymbiosis_theo
ry.gif
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Evidence for Endosymbiotic theory

• Mitochondia and chloroplasts
• have circular_______ similar
• to bacteria.
• 2. Mitochondria and chloroplasts have
• ______________ whose size and structure
  resemble bacterial ribosomes.
• 3. Mitochondria and chloroplasts replicated using
• _________________ like bacteria.
• 4. _______________________ of mitochondria and
  chloroplasts have a composition similar to
  bacterial membranes.

DNA
RIBOSOMES
Binary fission
INNER MEMBRANES
http//www.cytochemistry.net/cell-biology/mitochon
dria_lifecycle_graduate.htm
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• All living things made of cells BUT organisms
  can be very different.

Image from http//www.agen.ufl.edu/chyn/age2062
/lect/lect_06/bacsiz.GIF
UNICELLULAR
MULTICELLULAR
http//www.angelbabygifts.com/ http//www.inclusiv
e.co.uk/downloads/images/pics2/tree.gif
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CELL SIZE
http//facstaff.bloomu.edu/gdavis/links20100.htm

• Typical cells range from 5 50 micrometers
  (microns) in diameter

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How big is a micron ( µ ) ?

• http//www.talentteacher.com/pics/005cb.jpg

1 cm 10,000 microns 1 25,000 microns
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• MULTICELLULAR ORGANISM dont just contain MANY
  CELLS.

They have different kinds of cells doing
different jobs
Image from http//www.isscr.org/images/ES-cell-F
ig-2.jpg
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• Cells in a multi-cellular organism become
  SPECIALIZED by turning different genes on and off

Image from http//www.ncu.edu.tw/ls/graph/facult
y_pictures/whole_time/SLC/SLC_lab-1.jpg
Cell Specialization DIFFERENTIATION
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SPECIALIZED ANIMAL CELLS

• Muscle cells

Red blood cells
http//www.biologycorner.com/bio3/images/bloodcell
s3D.jpg
Cheek cells
http//www.mlms.logan.k12.ut.us/ajohnson/Cells.ht
ml
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Specialized Plant cells

• Guard cells

Xylem cells
Pollen
Guard cells http//botit.botany.wisc.edu/courses/
img/Botany_130/Diversity/Bryophytes/Anthoceros/Gua
rd_cells.jpg Xylem http//botit.botany.wisc.edu/i
mages/130/Secondary_Growth/Woody_Stems/Tilia_Stem/
Secondary_Growth/One_Year_Stem/Primary_xylem_MC.jp
g Pollen http//www.uic.edu/classes/bios/bios100/
labs/pollen.jpg
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MOLECULES
ORGANELLES

• ________? __________ ? ___________?

ATOMS
IMAGE SOURCES see last slide
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CELLS
TISSUES

• ____________ ? ____________ ?

Similar cells working together
IMAGE SOURCES see last slide
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ORGAN SYSTEMS
ORGANS
ORGANISM

• ___________ ? __________? ___________

Different tissuesworking together
Different organsworking together
IMAGE SOURCES see last slide
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IMAGE BIBLIOGRAPHY
http//www.uic.edu/classes/bios/bios100/summer2004
/lect02.htm

• Paint image by Riedell

Paint image by Riedell
http//www.emc.maricopa.edu/faculty/farabee/BIOBK/
BioBookCHEM2.htmlOrganic20molecules
http//evolution.berkeley.edu/evosite/evo101/image
s/dna_bases.gif
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http//bioweb.wku.edu/courses/BIOL115/Wyatt/Bioche
m/Carbos/Carb_poly.gif
http//vilenski.org/science/safari/cellstructure/g
olgi.html
http//www.science.siu.edu/plant-biology/PLB117/JP
EGs20CD/0076.JPG
http//classes.kumc.edu/som/bioc801/lectures/image
s/mem01-08.gif
http//www.biology4kids.com/files/cell_nucleus.htm
l
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http//www.biologyclass.net/mitochondria.jpe
http//www.ncu.edu.tw/ls/graph/faculty_pictures/w
hole_time/SLC/SLC_lab-1.jpg
http//www.kufm.kagoshima-u.ac.jp/anatomy2/BON/10
16A03.jpg
http//www.carolguze.com/text/102-19-tissuesorgans
ystems.shtml
http//academic.pg.cc.md.us/aimholtz/AandP/206_ON
LINE/Immune/Innate_Images/cilia.jpg
http//www.emc.maricopa.edu/faculty/farabee/BIOBK/
BioBookAnimalTS.html
http//www.agen.ufl.edu/chyn/age2062/lect/lect_19
/147b.gif
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• http//www.proctitispages.force9.co.uk/

http//vilenski.org/science/safari/fungus/fungus.h
tml
http//www.harrythecat.com/graphics/
http//bestanimations.com
http//www.inclusive.co.uk/downloads/images/pics2/
tree.gif
http//people.eku.edu/ritchisong/homepage.htm
http//sps.k12.ar.us/massengale/animal20dissectio
ns.htm