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Biology AWeek 112-8-10
Agenda
Books
Vocab time
Cell History and Prokaryotes vs Eukaryotes
T-Chart
Exit Slip
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
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)
Two Basic Cell Types
1) Prokaryotes“BACTERIA”Simplest and oldest form of lifeLacks internal compartments.No true nucleus.Most are single-celled
(unicellular) organisms.
Prokaryote
Two Basic Cell Types
2) EukaryoteMore complex cellsHave several internal structures
(organelles).True nucleus.Either unicellular or multicellular.
unicellular example: yeast multicellular examples: plants
and animals
Eukaryote
Exit Slip
Name three differences between Prokaryotic and Eukaryotic cells.
Biology AWeek 112-9-10
Agenda
Cell video
Organelles
Cell Models
Exit Slip
Organelles
Organelle
Plasma membrane
Cell wall
Nucleus
Ribosome
Cytoplasm
Rough Endoplasmic Reticulum (RER)
Golgi apparatus (golgi
body)
Vacuole
Lysosome
Chloroplast
Mitochondria
Centriole
DNA (Chromatin)
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
Groups Per. 5
1 – Nucleus, Centriole
2 – Mitochondria, DNA
3 – Ribosome, Vacuole
4 – Golgi apparatus,
Oganelle
5 – Lysozome, Plasma Membrane
6 – Rough E.R., Cell Wall
7 – Chloroplast, Cytoplasm
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
Biology AWeek 112-9-10
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)
Semi-permeable
Strainer
Screen Door (Door)
Window (Screen)
Fishing Net
Cheese Cloth
Homeo- “equal” Statis- "to stand"
"to stand equally“
regulate internal environment so as to maintain a stable, constant condition
Maintaining balance
Dynamic equilibrium
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.
Equilibrium
Balanced
No gradient
Can be dynamic
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.
No Gradient
Low to High Gradient
Warm-Up
What is the organelle that has been colored orange, what is its function in the cell?
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
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
Color
Disc 3 Write the function next to the structures labeled above Color
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