1. how would redi have benefitted if he would have known about the cell theory? 2. which...
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What do you get when you cross a snowman with a vampire? Frostbite. JokeTRANSCRIPT
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1. How would Redi have benefitted if he would have known about the cell theory?
2. Which scientist(s) would have been most interested in the study of a rare vine that grows on the trees in Louisiana?
3. Why does each organelle have such unique structures from one another?
3/25 Daily Catalyst Pg. 39 Organelles
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Quiz #9 on Friday Cell Theory Scientists of the cell theory Organelles
Test Corrections due Monday Report card extra credit
3/25 Class Business Pg. 39 Organelles
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What do you get when you cross a snowman with a vampire?
Frostbite.
Joke
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Daily Catalyst Class Business Organelle notes Plant vs. animal cell Exit Ticket #9 Homework: study organelles
3/25 Agenda Pg. 39 Organelles
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Bridge presentation
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Identify and describe structural and
functional differences among organelles.
3/25 Daily Objective Pg. 39 Organelles
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The cell membrane gives plant and animal cells shape AND controls what comes in or out of the cell
Key Point #1: “The bouncer
The cell membrane is selectively permeable. What does this mean?!
Cell Membrane
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Key Point #2: Selectively/semi Permeable Only certain molecules are allowed to enter and exit the
cell
How is the cell membrane so selective?
Cell Membrane
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Question: What happens when I shake the water bottle?
Hypothesis:
Why does this happen?
Class Demo
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Key Point #3: Membranes have a bilayer (two layers) Protection in and out side of the cell
Cell membrane
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Key Point #4: Membranes are made of phospholipids, a type of fat (With a marker, draw and label the phospholipid)
Cell Membrane
HEADHydrophilic: <3 water
TAILSHydrophobic:Hates water
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How is the membrane beneficial to the cell?
The membrane regulates what will enter and leave the cell.
Turn and Talk
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The nucleus is the command center of the cell Key Point #5:
“Command center” Surrounded by the nuclear membrane Houses the DNA and RNA Purpose of nuclear membrane?
To protect the nucleus and control what comes in or out of the nucleus
Structure? Phospholipids too!
Nucleus
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Key Point #6: “The jello” Composed of mainly water and salts Important for transport (next week)
Cytoplasm
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Ribosomes, endoplasmic reticulum, and Golgi apparatusKP#7: Protein creation: RibosomesEndoplasmic
ReticulumGolgi Apparatus
MEMBRANES that allow proteins to pass in and out
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Power plants
Chloroplasts Inner and outer
membranesMitochondria
Inner and outer membranes
Key point #8: folded membranes to
increase surface area = efficiency!
Plants Plants and Animals
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Sum of the total area Key Point #9: A greater surface area allows
for organelles to be more efficient
Surface Area???
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What do plants and animal cells have in common?
Plants Animals
Both
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Directions: Using your notes, correctly color the plant and animal cells. You may want to label the organelles as a review for Friday’s quiz.
Noise: 1 (with partner)
Time: 15 minutes
Plants vs. animals
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Directions: I will display information about plant or animal cells. You will move to the side of the room with the correct answer. Animals are in the front. Plants are in the back. Both, plants and animals is in the center of the class.
Walk and keep talking down
Cell Review
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Contains a cell wall
PLANTS
Cell Review
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Contains RibosomesBOTH
Cell Review
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Contains Lysosomes
BOTH
Cell Review
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EukaryoticBOTH
Cell Review
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Contains a Mitochondria
BOTH
Cell Review
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Contains a ChloroplastPLANTS
Cell Review
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Contains a nucleusBOTH
Cell Review
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The 4 scientists involved with the cell theory The cell theory Major organelles discussed today
Partner Review
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Name: ______ Period: 1 Date: 3/25 Score: ___/4Exit Ticket #8
1. How did Redi’s experiment prove that only cells come from preexisting cells from the cell theory?
2. What is the nickname for the ribosomes? 3. What was Hooke observing when he coined the term
“cells”? 4. True or false, plants cells contain a cell wall like an animal
cell. 5. What is the purpose of the cytoplasm? 6. If a plant cell wall loses all of its water, what organelle is
not functioning properly? 7. What is the purpose of membrane bound organelles? 8. Draw and label a phospholipid.