Transcript Cells - Manhasset Schools

Date: November 9, 2015
Aim #24: How was the cell theory developed?
Do Now: Warm-Up Notebook
Date
Title of Activity
11/9
1st Quarter Self-Reflection
Page #
42
HW:
1)Any late work for Quarter 1? Get to me no later
than Tuesday 11/10!
2)Biochemistry Lab & Article (“The Dog Ate My
Homework”) due Friday
Date: November 10, 2015
Aim #24: How was the cell theory developed?
Do Now: Warm-Up Notebook
Date
Title of Activity
11/10
Microscope Part 2
Page #
43
HW:
1)Complete Micrographia Questions
2)Biochemistry Lab & Article (“The Dog Ate My
Homework”) due Friday
The Wacky History of the Cell Theory
http://ed.ted.com/lessons/the-wacky-history-of-cell-theory
Date: November 12, 2015
Aim #24: How was the cell theory developed?
Do Now: Warm-Up Notebook
Date
Title of Activity
11/12
History of Cell Studies
Page #
44
HW:
1)Biochemistry Lab & Article (“The Dog Ate My
Homework”) due Friday
Aim #24:
How was the cell theory
developed?
1) Unicellular vs. Multicellular
• Unicellular- made up of
ONE cell
• Multicellular- made up of
MORE THAN ONE cell
Organization of Living Things…
Cells  Tissues  Organs  Organ
Systems  Organisms
2) What are the four characteristics of
life?
• Cells: Basic units of structure & function
• Metabolism: Chemical reactions in cells
• Homeostasis: Internal Balance
• Reproduction: Produce offspring
3) What instrument was vital for scientists to
discover and learn more about cells?
• Visible light passes through
an object & glass lenses then
enlarge the image & project
it into the human eye.
• This instrument allows
scientists to see larger parts of
a cell (cell membrane, nucleus,
chromosomes, etc…)
• A light microscope can magnify
objects up to 1000 times.
Light Microscope
A Brief History of Cells
https://app.discoveryeducation.com/learn/videos/0F349698-ABEF46B6-BC7C-5E2162505768?hasLocalHost=false
Anton Van Leeuwenhoek
1600s
• Developed simple light
microscopes that
allowed him to
examine tiny living
organisms he called
“animacules”
Robert Hooke
1665
What is this?
First compound
microscope
Cork Cells
First person to use the word “cell”
Matthias Schleiden
1838
• ALL PLANTS ARE
MADE UP OF
CELLS!!
Theodor Schwann
1838
• ALL ANIMALS ARE
MADE UP OF
CELLS!!
Rudolf Virchow
1858
• CELLS COME FROM
PRE-EXISTING CELLS!
7) What are the three parts of the cell
theory?
• All living things are
made of cells
• Cells are the basic unit
of structure and
function (metabolism)
• New cells come from
pre-existing cells
8) What are some exceptions to the cell
theory?
1) Viruses.
• Are viruses living?
• contain genetic material and protein
but are smaller than cells and cannot
reproduce outside of a cell.
2) The first cell.
• Where did the first cell come from?
• could not have arisen from a
previously existing cell.
3) Mitochondrion and Chloroplasts
• contain their own genetic information
and can replicate on their own inside
of cells.
Viruses
•They are not
made up of cells,
but are they
living?
What do you know about viruses?
• They can make you
very sick
• They can be
transmitted from
person to person
• There are different
types of viruses
9) How big is a virus?
• Too small to be seen
with a light
microscope.
• They are microscopic
and smaller than
cells!!
10) What instrument allows scientists to
see viruses?
• Electron
Microscope!
11) What are four features of an electron
microscope?
• Used to view extremely small
structures inside cells &
viruses
• Utilizes an electron beam
instead of a light beam
• Can magnify up to a million
times
• Subject must be dead and dry
12) So… is a virus classified as a living
thing?
•NO! A virus is nonliving
•Viruses cannot reproduce, they must
invade a host cell in order to replicate!
Introduction to Viruses Video
https://app.discoveryeducation.com/learn/videos/2D78711C-48C2454B-91B0-6F95863F04D0?hasLocalHost=false
13) Let’s compare and contrast viruses
and bacteria
Bigger than a virus
Smaller than bacteria
Virus has spiky outer
skin
Viruses do not have
enough DNA blueprints
to reproduce. Must
invade a host cell.
Discovered by Martinus
Benjerunck in 1898
It has complex structure
Both cause
disease
Both contain
DNA and
enzymes
Rigid cell wall
Bacteria has lots of DNA
blueprints to
reproduce.
First discovered by
Anton Van
Leeuwenhoek in 1670
Date: November 13, 2015
Aim #24: How was the cell theory developed?
Do Now: Warm-Up Notebook
Date
Title of Activity
11/13
Louis Pasteur
Page #
45
HW:
1)Cheese Lab
2)Have a nice weekend 
Happy
Birthday
Paige!!!
NPR: Flu Attack! How a virus
invades your body
• https://www.youtube.com/watch?v=Rpj0emEGShQ
SciShow: What you need to know about
Ebola
https://www.youtube.com/watch?v=TGyFhwdtCMk
Ebola Outbreak (Frontline PBS)
http://www.pbs.org/wgbh/pages/frontline/ebola-outbreak/