W EEK 6- F RIDAY 9/26 J- Bozeman- Why are cells so small video
5 facts TI- Journals Week 5 & 6 (Staple them together and make
sure your NAME is on them!) CW- set up unit folder (Cover page,
Essential Questions & Vocab)- DUE Mon 9/29 HW- Interactive
Reader pgs 69-71
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W EEK 7- M ONDAY 9/29 J-What are the two different categories
of cells? Describe how you could identify each type of cell TI-
Interactive Reader pgs 69-71, Checking cover page, eqs & Vocab
CW- Guided Microscope notes HW- Microscope quiz Wed Left SideRight
Side 7: Microscope Labeling8: Microscope Notes
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W EEK 7- T UESDAY 9/30 J- Describe 2 different types of
microscopes. Include the name, magnification, and use for each. TI-
none CW- Finish guided microscope notes, Color the parts of the
microscope worksheet HW- Microscope Quiz tomorrow
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W EEK 7- W EDNESDAY 10/1 J- List the steps to make a wet mount
slide. TI- none CW- 10 minutes study time, Microscope quiz NO NOTES
(answer on a separate piece of paper. MAKE SURE YOU WRITE WHICH
VERSION YOU HAVE.) HW- none
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W EEK 7- T HURSDAY 10/2 J- You have learned about the cell
before. List as many organelles as you can (minimum of 3) and
describe their functions. TI- none CW-Cell Theory, Scientists &
Types of cells notes HW-Bozeman Cell Organelle Flip Lesson DUE MON
10/6 Left SideRight Side 9: History of Cells Timeline10: Cell
Theory & Types
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CELL STRUCTURE & FUNCTION Chapter 4
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THE DISCOVERY OF CELLS Cells: is the smallest unit that can
carry on all processes of life
Slide 9
ROBERT HOOKE An English Scientist studied nature in 1665 using
an early light microscope Studied a thin slice of cork and viewed
small cubicles or cells He then studied tree stems, roots, and
ferns and noticed they had the same structures
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ANTON VAN LEEUWENHOEK First person to view living cells His
microscope was had 10x the magnification of Hookes microscope 1673,
viewed the first Protists he called animalcules
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THE CELL THEORY Matthias Schleiden concluded plants were
composed of cells Theodor Schwann concluded animals were composed
of cells Rudolf Virchow noted that cells came from other cells
These theories were combined to form the basic components of the
cell theory
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THE CELL THEORY 1. All living organisms are composed of one or
more cells 2. Cells are the basic units of structure and function
in an organisms 3. Cells come only from the reproduction of
existing cells
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CELLULAR BASICS OF LIFE Microscopes help scientists clarify the
definition of life All living things have several basic
characteristics: Consist of organized parts Obtain energy from
their surroundings Perform chemical reactions Change with time
Respond to their environment Reproduce
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CELL SIZE The size of a cell is limited by the relationship of
the cells outer surface area to its volume Or surface area to
volume ratio As a cell grows, the volume increase faster than its
surface area Why is this important???? Because the materials that
the cell needs (nutrients & oxygen) and waste produced (carbon
dioxide) must be able to get in and out of the cell If a cell grows
in volume quicker than the surface area the volume will not be able
to leave the cell properly because it has gotten too big
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PROKARYOTES Lack membrane nucleus and organelles DNA is located
in the nucleoid Prokaryotes are divided into 2 domains: Bacteria
and Archaea
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EUKARYOTES Have nucleus and organelles Composed of one or more
cells Eukaryotic cells are larger than prokaryotic cells
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BASIC PARTS OF A CELL ALL Cells must have Cytoplasm Genetic
information (DNA) Cell (Plasma) Membrane Ribosomes
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W EEK 7- F RIDAY 10/3 J- Types of Cells sorting activity TI-
none CW- Cell organelle guided notes HW- Bozeman Cell Organelle
Flip Lesson DUE MON 10/6 Left SideRight Side 11: Cell Organelles
112: Cell Organelles 2 13: Cell Organelles 314: Cell Organelles
4
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ORGANELLES Sub-cellular structures Mini Organs
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CYTOPLASM Location/ type of cell: within the cell membrane
Prokaryotes, eukaryotes, & bacteria Description: jelly-like goo
that holds all organelles Function: contains the fluid of the cell,
cytoskeleton, and all other organelles except the nucleus
Slide 21
Nucleus Types of Cells: Plants and Animals Description:
Membrane bound structure Function: control center of the cell
Carries coded genetic information, DNA, for regulating function and
reproducing themselves
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NUCLEUS Nuclear envelope Description: contains the nucleus in a
double membrane layer Function: Regulates what enters/leaves cell
Nuclear pores Description: tiny protein lined holes cover the
surface Function: allow the passage of RNA and materials to leave
the nucleus
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N UCLEOLUS Nucleolus Type of cell: Inside the nucleus/
eukaryotes Descriptions: is the site where DNA is concentrated when
making ribosomal RNA Function: makes ribosomes
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MITOCHONDRIA The Power House of the cell Organelles transfer
energy from organic molecules to ATP (Adenosine Triphosphate) ATP
powers all the cells chemical reactions
Slide 25
R IBOSOMES Type of Cells: Prokaryote & Eukayotes
Description: small round organelle Located in the cytosol and on
the rough ER Function: make proteins
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PLASMA MEMBRANE Type of Cell- Prokaryote & Eukaryote
Description: The cells outer boundary made up of 2 phospholipid
layers (bilayer) Have a hydrophilic (water loving) and hydrophobic
(water fearing) layer Function: Covers a cells surface Acts as a
barrier between the inside and outside of a cell (semipermeable)
All material enters and exits through the plasma membrane