biology a week 1 12 -8- 10
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Biology A Week 1 12 -8- 10. Agenda. Books Vocab time Cell History and Prokaryotes vs Eukaryotes T-Chart Exit Slip. Introduction to Cell Theory. History of Scientists:. 1655:. Robert Hooke coins the term "cell" to describe chambers in cork . - PowerPoint PPT PresentationTRANSCRIPT
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Biology AWeek 112-8-10
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Agenda
BooksVocab timeCell History and Prokaryotes vs EukaryotesT-ChartExit Slip
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Introduction to Cell TheoryHistory of Scientists:
Mathais Schleiden concluded that plants are composed of cells 1838:
1839: Theodore Schwann concluded that animals are composed of cells
1674: Anton Von Leeuwenhoek perfects techniques for grinding microscope lens to make the first microscope
1655: Robert Hooke coins the term "cell" to describe chambers in cork
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Cell TheoryThose early scientists did experiments on living things and developed CELL THEORY
Main Ideas of Cell TheoryAll living things are made of one or more cells
1)
Cells are the basic units of structure & function of living things
2)
All cells come from existing cells 3)
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Two Basic Cell Types
1) Prokaryotes“BACTERIA”Simplest and oldest form of lifeLacks internal compartments.No true nucleus.Most are single-celled
(unicellular) organisms.
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Prokaryote
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Two Basic Cell Types2) Eukaryote
More complex cellsHave several internal structures
(organelles).True nucleus.Either unicellular or multicellular.
unicellular example: yeast multicellular examples: plants
and animals
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Eukaryote
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Exit Slip
Name three differences between Prokaryotic and Eukaryotic cells.
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Biology AWeek 112-9-10
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Agenda
Cell videoOrganellesCell ModelsExit Slip
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Organelles Organelle Plasma membrane Cell wall Nucleus Ribosome Cytoplasm Rough Endoplasmic
Reticulum (RER) Golgi apparatus (golgi
body) Vacuole Lysosome Chloroplast Mitochondria Centriole DNA (Chromatin)
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Groups Per. 2
1 – Nucleus 2 – Mitochondria 3 – Ribosome, Vacuole 4 – Golgi apparatus 5 – Lysozome 6 – Rough E.R. 7 – Chloroplast
8 – Cell Wall, DNA 9 – Plasma Membrane 10 - Cytoplasm, Centriole
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Groups Per. 5
1 – Nucleus, Centriole
2 – Mitochondria, DNA
3 – Ribosome, Vacuole
4 – Golgi apparatus,
Oganelle 5 – Lysozome,
Plasma Membrane6 – Rough E.R., Cell
Wall7 – Chloroplast,
Cytoplasm
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Inside the Animal Cell
Disc 1 Label: Cytoplasm, cell membrane, centriole Color
Disc 2 Label: lysosome, cytoplasm, ribosome, RER, DNA,
nucleus, cell membrane, mitochondria, Golgi body, vacuole
Color Disc 3
Write the function next to the structures labeled above Color
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Biology AWeek 112-9-10
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Bio Warm-up 10/11
The plasma membrane is semi-permeable, meaning it keeps some things out while allowing other things in.
Make a list of other semi-permeable things. (example: strainer)
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Semi-permeable
StrainerScreen Door (Door)Window (Screen)Fishing NetCheese Cloth
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Homeo- “equal” Statis- "to stand"
"to stand equally“ regulate internal environment so as to
maintain a stable, constant condition Maintaining balance Dynamic equilibrium
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Homeostasis – Maintaining Balance
Cells must keep the proper concentration of nutrients and water and eliminate wastes.
The plasma membrane is selectively permeable – it allows some things to pass through, while blocking other things.
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Equilibrium
BalancedNo gradientCan be dynamic
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Concentration gradient
What is concentration? How much of something is in there.What is a gradient?The measurement of how the
concentration of something changes from one place to another.
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No Gradient
Low to High Gradient
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Warm-UpWhat is the organelle that has been colored orange, what is its function in the cell?
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Inside the Animal Cell
Disc 1 Label: Cytoplasm, cell membrane, centriole Color
Disc 2 Label: lysosome, cytoplasm, ribosome, RER, DNA,
nucleus, cell membrane, mitochondria, Golgi body, vacuole
Color Disc 3
Write the function next to the structures labeled above Color
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Inside the Plant Cell
Disc 1 Label: Chloroplast, Central Vacuole, Cell Wall Write the function next to the structure Color
Disc 2 Label: lysosome, cytoplasm, ribosome, RER, DNA,
nucleus, cell membrane, mitochondria, Golgi body, chloroplast, vacuole, cell wall
ColorDisc 3
Write the function next to the structures labeled above Color