Part II: Mitosis - Science PowerPoints

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Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
• RED SLIDE: These are notes that are very
important and should be recorded in your
science journal.
Copyright © 2010 Ryan P. Murphy
Please use this red line
Please use this red line
-Please make notes legible and use indentations when
appropriate.
Please use this red line
- Please make notes legible and use indentations when
appropriate.
-Please make notes legible and use indentations
when appropriate.
-Example of indent.
-Please make notes legible and use indentations
when appropriate.
-Example of indent.
-Skip a line between topics
-Please make notes legible and use indentations
when appropriate.
-Example of indent.
-Skip a line between topics
-Don’t skip pages
-Please make notes legible and use indentations
when appropriate.
-Example of indent.
-Skip a line between topics
-Don’t skip pages
-Make visuals clear and well drawn.
-Please make notes legible and use indentations
when appropriate.
-Example of indent.
-Skip a line between topics
-Don’t skip pages
-Make visuals clear and well drawn.
-Please make notes legible and use indentations
when appropriate.
-Example of indent.
-Skip a line between topics
-Don’t skip pages
-Make visuals clear and well drawn. Please Label
Double Helix
Phosphate Backbone
Nitrogen Base
• RED SLIDE: These are notes that are very
important and should be recorded in your
science journal.
• BLACK SLIDE: Pay attention, follow
directions, complete projects as described
and answer required questions neatly.
Copyright © 2010 Ryan P. Murphy
• Keep an eye out for “The-Owl” and raise
your hand as soon as you see him.
– He will be hiding somewhere in the slideshow
Copyright © 2010 Ryan P. Murphy
“Hoot, Hoot”
“Good Luck!”
Copyright © 2010 Ryan P. Murphy
• Why do we age?
“Arrgh”
Copyright © 2010 Ryan P. Murphy
Young
Older
Older
• Answer : It has a lot to do with our next
area of focus.
Copyright © 2010 Ryan P. Murphy
• Answer
: It has a lot to do with our next
“That question better
get answered
by the
area
of focus.
end of the unit.”
Copyright © 2010 Ryan P. Murphy
• Research Opportunity! There are many
theories about why and how we age.
– Who would like to tackle this question and report
back to the class tomorrow?
• Video (Optional)! Time Lapse of aging.
– One picture everyday for six years.
– A neat video for the end of class. (6 min)
– http://www.youtube.com/watch?v=6B26asyGKDo

New Area of Focus: Cellular Division
Copyright © 2010 Ryan P. Murphy

Mitosis: Cellular Division
-
Copyright © 2010 Ryan P. Murphy

When one cell divides into two
Copyright © 2010 Ryan P. Murphy
• Humans shed thousands and thousands
of skin cells every hour. Some estimates
put it around 600,000 skin cells an hour.
Copyright © 2010 Ryan P. Murphy
• Humans shed thousands and thousands
of skin cells every hour. Some estimates
put it around 600,000 skin cells an hour.
– These cells need to be replaced…Mitosis.
Copyright © 2010 Ryan P. Murphy
• Humans shed thousands and thousands
of skin cells every hour. Some estimates
put it around 600,000 skin cells an hour.
– These cells need to be replaced…Mitosis.
Copyright © 2010 Ryan P. Murphy
• We are not one celled creatures…
• We are not one celled creatures…
– We are multicellular creatures made of trillions of
cells. We needed mitosis to create and maintain
our complexity.
• We are not one celled creatures…
– We are multicellular creatures made of trillions of
cells. We needed mitosis to create and maintain
our complexity.
• Video! Time lapse photography showing
embryonic development of a fish. (Mitosis)
– http://www.youtube.com/watch?v=nPgNoidnKMM
Copyright © 2010 Ryan P. Murphy

Exact copy of the cells’ genetic material is
made.
Copyright © 2010 Ryan P. Murphy

Exact copy of the cells’ genetic material is
made.
Copyright © 2010 Ryan P. Murphy
• Mitosis Song Video Link! INTRODUCTION
• http://www.youtube.com/watch?v=HYKesI
9jL8c
• Mitosis Song Video Link! INTRODUCTION
• http://www.youtube.com/watch?v=HYKesI
9jL8c
• Important Note - Although mitosis will be
discussed as different stages, the process
is generally continuous.
Copyright © 2010 Ryan P. Murphy
• Before we begin, we must learn about
chromosomes.
Copyright © 2010 Ryan P. Murphy
• Mitosis Available Sheet for classwork.
• Mitosis Available Sheet for classwork.
• Humans have 46 chromosomes in their
cells.
– Not sex cells which will be discussed later
during meiosis.
Copyright © 2010 Ryan P. Murphy
• Humans have 46 chromosomes in their
cells.
– Not sex cells which will be discussed later
during meiosis.
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
“Oh
No!” “We’re
doing it again.”
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
“I told you
we’re doing it
again.”
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
• .
Copyright © 2010 Ryan P. Murphy
“Oh
No!”
“He’s dead!” “Just leave
him.”

Chromosome: An organized structure of
DNA and protein that is found in cells.
Copyright © 2010 Ryan P. Murphy
• DNA wrapping and chromosome
formation.
– Over 1.8 meters (6 feet) of DNA can be found
in most cells.
• DNA wrapping and chromosome
formation.
– Over 1.8 meters (6 feet) of DNA can be found
in most cells.
• Video! DNA wrapping and chromosome
formation.
– Over 1.8 meters (6 feet) of DNA can be found
in most cells.
• Video Again! (Optional) DNA wrapping. Shows
how 1.8 meters of DNA can be found in a
single cell.
– http://www.youtube.com/watch?v=AF2wwMReTf8
Copyright © 2010 Ryan P. Murphy
• Video Link (Optional) Chromosomes,
Chromatin, DNA Khan Academy
– http://www.khanacademy.org/video/chromoso
mes--chromatids--chromatin-etc?playlist=Biology
• You can also complete this question for
homework.

Cell Division:
• Mitosis Available Sheet for classwork.

Interphase
 Most
of cell cycle (90%)
 Cell grows and develops (gets bigger)
 Chromosomes not visible
 Nucleus intact
 DNA is copied
Copyright © 2010 Ryan P. Murphy

Interphase
 Most
of cell cycle (90%)
 Cell grows and develops (gets bigger)
 Chromosomes not visible
 Nucleus intact
 DNA is copied
Copyright © 2010 Ryan P. Murphy

Interphase
 Most
of cell cycle (90%)
 Cell grows and develops (gets bigger)
 Chromosomes not visible
 Nucleus intact
 DNA is copied
Copyright © 2010 Ryan P. Murphy

Interphase
 Most
of cell cycle (90%)
 Cell grows and develops (gets bigger)
 Chromosomes not visible
 Nucleus intact
 DNA is copied
Copyright © 2010 Ryan P. Murphy

Interphase
 Most
of cell cycle (90%)
 Cell grows and develops (gets bigger)
 Chromosomes not visible
 Nucleus intact
 DNA is copied
Copyright © 2010 Ryan P. Murphy

Interphase
 Most
of cell cycle (90%)
 Cell grows and develops (gets bigger)
 Chromosomes not visible
 Nucleus intact
 DNA is copied
Copyright © 2010 Ryan P. Murphy
• Interphase: Use Petri dish to draw image
below.
Copyright © 2010 Ryan P. Murphy
• Mitosis Available Sheet for classwork.

Prophase
Copyright © 2010 Ryan P. Murphy

Prophase
 Chromatin
draws together to create
chromosomes.
Copyright © 2010 Ryan P. Murphy

Prophase
 Chromatin
draws together to create
chromosomes.
 Spindle fibers form.
Copyright © 2010 Ryan P. Murphy
• Mitosis Available Sheet for classwork.
• Mitosis Available Sheet for classwork.

Prometaphase

Prometaphase
 Nuclear
envelope breaks down.

Prometaphase
 Nuclear
envelope breaks down.
 Centrosomes are positioned at opposite poles
of the cell.

Prometaphase
 Nuclear
envelope breaks down.
 Centrosomes are positioned at opposite poles
of the cell.
 Spindle fibers attach to chromosome at the
kinetochore.
• Mitosis Available Sheet for classwork.

Draw Prometaphase
Copyright © 2010 Ryan P. Murphy
Prophase
Late Prophase
Prophase
Prometaphase
• Mitosis Available Sheet for classwork.

Metaphase: Chromosomes line up on
equator
Copyright © 2010 Ryan P. Murphy

Metaphase: Draw below.
Copyright © 2010 Ryan P. Murphy
• Mitosis Available Sheet for classwork.
• Mitosis Available Sheet for classwork.

Anaphase
 Chromosomes
get split at centromere
 The two identical copies get pulled apart
Copyright © 2010 Ryan P. Murphy

Anaphase
 Chromosomes
get split at centromere
 The two identical copies get pulled apart
Copyright © 2010 Ryan P. Murphy

Anaphase
 Chromosomes
get split at centromere
 The two identical copies get pulled apart
Copyright © 2010 Ryan P. Murphy
Early Anaphase
Late Anaphase
Early Anaphase
Late Anaphase
• Mitosis Available Sheet for classwork.
• Mitosis Available Sheet for classwork.

Telophase
 Chromosomes
reach poles.
 Nuclear membrane begins to form.
 Cleavage furrow forms pinching cell into two.
 Chromosomes begin to unwrap.
Copyright © 2010 Ryan P. Murphy

Telophase
 Chromosomes
reach poles.
 Nuclear membrane begins to form.
 Cleavage furrow forms pinching cell into two.
 Chromosomes begin to unwrap.
Copyright © 2010 Ryan P. Murphy

Telophase
 Chromosomes
reach poles.
 Nuclear membrane begins to form.
 Cleavage furrow forms pinching cell into
two.
 Chromosomes begin to unwrap.
Copyright © 2010 Ryan P. Murphy

Telophase
 Chromosomes
reach poles.
 Nuclear membrane begins to form.
 Cleavage furrow forms pinching cell into two.
 Chromosomes begin to unwrap.
Copyright © 2010 Ryan P. Murphy

Telophase
 Chromosomes
reach poles.
 Nuclear membrane begins to form.
 Cleavage furrow forms pinching cell into two.
 Chromosomes begin to unwrap.
Copyright © 2010 Ryan P. Murphy

Telophase: Please Draw.
Copyright © 2010 Ryan P. Murphy
• Mitosis Available Sheet for classwork.
• This PowerPoint is one small part of my
DNA and Genetics Unit.
• This unit includes…
– A five part 3,000 slide PowerPoint roadmap.
– 14 page bundled homework package,
answer keys, lesson notes, rubrics, materials
list, guide, and much more.
– PowerPoint Review Game, games,
flashcards, crosswords, and more.
– http://sciencepowerpoint.com/DNA_Genetics
_Unit.html
• DNA Review Game
• “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to
NABT and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=
1
• http://learningcenter.nsta.org/browse_journals.aspx?j
Please visit at least one of the
ournal=tst
“learn more” educational links
provided in this unit and
complete this worksheet.
• “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to NABT
and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=1
• http://learningcenter.nsta.org/browse_journals.aspx?jo
urnal=tst
Areas of Focus within The DNA and Genetics Unit:
DNA, DNA Extraction, Structure of DNA, Discovery of the Double
Helix, Rosalind Franklin, Nucleotides, RNA, Cell Division, Mitosis,
Phases of Mitosis, Chromosomes, Cancer, Ways to Avoid Cancer,
What is Inside a Cigarette?, Facts about Smoking?, Anti-Smoking
Ads, Meiosis, Phases in Meiosis, Mendelian Genetics, Gregor
Mendel, Punnett Squares, Probability, Dihybrid Cross, Codominance,
Bio-Ethics, Stem Cell Debate, Cloning Debate
–Full Unit found at…
–http://sciencepowerpoint.com/DNA_Genetics_Unit.html
• Please visit the links below to learn more
about each of the units in this curriculum
– These units take me about four years to complete
with my students in grades 5-10.
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Geology Topics Unit
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Soil Science, Weathering, More
http://sciencepowerpoint.com/Soil_and_Glaciers_Unit.html
Water Unit
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Rivers Unit
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= Easier
– 5th – 7th grade
= More Difficult
6th – 8th grade
= Most Difficult
8th – 10th grade
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html
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Human Body / Health Topics
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DNA and Genetics Unit
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Cell Biology Unit
http://sciencepowerpoint.com/Cellular_Biology_Unit.html
Infectious Diseases Unit
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Taxonomy and Classification Unit
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Ecology Feeding Levels Unit
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Ecology Interactions Unit
http://sciencepowerpoint.com/Ecology_Interactions_Unit.html
Ecology Abiotic Factors Unit
http://sciencepowerpoint.com/Ecology_Abiotic_Factors_Unit.html
• Thank you for your time and interest in this
curriculum tour. Please visit the welcome / guide on
how a unit works and link to the many unit previews
to see the PowerPoint slideshows, bundled
homework, review games, unit notes, and much
more. Thank you for your interest and please feel
free to contact me with any questions you may have.
Best wishes.
• Sincerely,
• Ryan Murphy M.Ed
• ryemurf@gmail.com
• The entire four year curriculum can be found at...
http://sciencepowerpoint.com/ Please feel free to
contact me with any questions you may have.
Thank you for your interest in this curriculum.
Sincerely,
Ryan Murphy M.Ed
www.sciencepowerpoint@gmail.com
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