UNIT 5 – CELL STRUCTURE. Flashcard Warm-Up Cell The smallest unit of life. Some living organisms...
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Transcript of UNIT 5 – CELL STRUCTURE. Flashcard Warm-Up Cell The smallest unit of life. Some living organisms...
![Page 1: UNIT 5 – CELL STRUCTURE. Flashcard Warm-Up Cell The smallest unit of life. Some living organisms are made of only one cell and some are made of many.](https://reader031.fdocuments.net/reader031/viewer/2022013012/5697bf771a28abf838c815fc/html5/thumbnails/1.jpg)
UNIT 5 – CELL STRUCTURE
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Flashcard Warm-Up
Cell The smallest unit of life.
Some living organisms are made of only one cell and some are made of many cells. Cells can have very different shapes/functions, but there are 4 things they have in common.
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IMPORTANT SCIENTISTS
Robert Hooke – First to observe cells – looked at cork and gave individual units the name “cells”
Anton von Leeuwenhoek – First to observe living cells – looked at scrapings from his cheek
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CELL THEORY1. All organisms are made of cells
2. Cells are the structural and functional units of organisms.
3. All cells come from pre-existing cells.
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TYPES OF CELLS:Prokaryotic: Small simple cells that are bacteriaEukaryotic: Larger complex cells that form plants, animals, fungi and protists
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STRUCTURES IN ALL CELLS:
* Cell membrane – forms the barrier to separate inside the cell from the outside environment
*Cytoplasm – the filling of the cell, mostly water
*DNA – molecule with directions to control the cell
*Ribosome – organelle that builds proteins
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Ticket out the Door
Sketch this cell. Label it as prokaryotic
or eukaryotic. Label the four parts
that all cells have.
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Flashcard Warm-up
Prokaryotic vs. Eukaryotic Cells
Use your notes from yesterday to write down how these two cell types are different
Structures Found in All Cells
Use your notes from yesterday to write down four structures found in all cells and briefly describe each
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Ribosome
One of the organelles that ALL cells have. This is where proteins are made. Some important functions of proteins are to be _________, ____________ or ______________.
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CELL ORGANELLESNucleus (Found only in eukaryotic) – region containing and protecting the DNA
Cell membrane (Found in ALL cells) – made of two layers of phospholipids – controls what exits/enters the cell
Ribsome (Found in ALL cells) – provides a place for amino acids to be joined into a protein
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Lysosome (found in eukaryotic cells) – contains digestive to digest waste and cell structures
ER (endoplasmic reticulum): change proteins, detoxify alcohol and communication
Golgi Body/Complex: packaging center
Vacuole: Membrane used to store food, water or waste
Organelles in the Cytoplasm Video
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Mitochondria (all eukary): has folded inner membrane for more surface to create energy during respiration
Cell wall (plants): rigid structure made of cellulose to support plant cells
Chloroplast (plants): has stacks of membranes for more surface area to create food during photosynthesis
Centriole: helps with cell division; found only in animals
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Plant vs. Animal Cells
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ONLY in plant/plant-like cells
ONLY in animal/ animal-like cells
• Cell wall• Chloroplast
• Centriole
But what else do plant cells contain?
But what else do animal cells contain?
Plant vs. Animal Cell Clip
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Ticket out the door
Sketch the following organelles.
Label its name. Identify what type
of cell this would be in.
(ALL cells, only prokaryotic, only
eukaryotic, only plant or only animal)
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Cell Communication:
Short distance: Cells that touch or have a very small distance can use chemical or electrical signals
Long distance: communication across long distances require long-lasting chemicals like hormones
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Big Unit Review
Choose two vocabulary words that were not part of your assigned vocab and draw a picture for them.
Choose three words and write a sentence with them.
Create two questions of your own and answer ONE of them.
Create a news headline and paragraph about a major topic from this unit.