cellular transport how your cells eat, drink and be merry!
TRANSCRIPT
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Cellular Transport
How Your Cells Eat, Drink and be Merry!
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Do Your Cells Eat and Drink?
• Cells must take in water and nutrients in order to function.
Mmm…..
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What part of the cell allows it to take in
nutrients and water?
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Of What is the Cell Membrane Made?
• Proteins and Lipids
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What are the Proteins in the Cell Membrane?
Receptor
Channel
Marker
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SO….. How DO Your Cells Eat, Drink and be
Merry?
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Cells move substances through the cell membrane by
a process called transport
• Two Types of Transport:
–Passive Transport
–Active Transport
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What is Passive Transport?
• Requires no energy from cell.
• Molecules move from high concentration to low concentration.
• Molecules move with the concentration gradient.
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What’s happening?
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How would diffusion happen in a cell?
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How would diffusion happen in a cell?
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How would diffusion happen in a cell?
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How would diffusion happen in a cell?
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How would diffusion happen in a cell?
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How would diffusion happen in a cell?
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How would diffusion happen in a cell?
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How would diffusion happen in a cell?
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Osmosis is a type of diffusion
Cell Membrane
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Osmosis is a type of diffusion
Cell Membrane
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Osmosis is a type of diffusion
Cell Membrane
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Osmosis is a type of diffusion
Cell Membrane
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Osmosis is a type of diffusion
Cell Membrane
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Osmosis is a type of diffusion
Cell Membrane
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Osmosis is a type of diffusion
Cell Membrane
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Osmosis is a type of diffusion
Cell Membrane
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Explain what is happening
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Explain what is happening
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Explain what is happening
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Explain what is happening
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Explain what is happening
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Explain what is happening
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Explain what is happening
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Explain what is happening
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How does Passive Transport affect
my cells?
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What would happen to the animal cells in each
beaker?
100% Distilled Water
80% H2O
70% Water30% Dissolved
Substances
80% H2O
80% Water20% Dissolved
Substances
80% H2O
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Which way did the water move?
100% Distilled Water
80% H2O
Why did the cell get so big?
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Which way did the water move?
80% Water20% Dissolved
Substances
80% H2O
Why did the cell stay the same
size?
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Which way did the water move?
70% Water30% Dissolved
Substances
80% H2O
Why did the cell get so small?
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REVIEW1. What part of the cell regulates what
goes in and out?2. What are the two components of
the cell membrane?3. What are the two types of
transport?4. What are the characteristics of
passive transport?
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MORE REVIEW
1. Explain diffusion. Why does it occur?
2. Explain osmosis. Why does it occur?
3. Explain facilitated diffusion.4. What is the role of the channel
protein in facilitated diffusion?
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Even MORE Review!
1. What happens to an animal cell when there are more dissolved substances on the outside of the cell?
2. The inside?3. When there are equal
amounts?
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How is Active Transport different?
1. Active transport requires energy.
2. Molecules move from low concentration to high concentration
3. Molecules move against concentration gradient.
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What is this cell doing?
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Endocytosis• Cells bring large in particles using cell
membrane–There are 2 types:• Phagocytosis
• Pinocytosis
• Channel proteins are used to bring in large molecules.
http://w3.uokhsc.edu/human_physiology/ATPase.htm
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Phagocytosis
• Your white bloods cells also do this.• This is the ingestion of large particles.
Amoeba
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Pinocytosis
• Tiny pockets form along cell membrane, and pinch off into vacuoles inside the cell. Sometimes called “Cell Drinking”
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Exocytosis
• This is how the cell gets rid of waste.
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REVIEW1. How is Active transport different
from passive?2. What part of the cell is used to bring
in particles?3. How does a cell (including white
blood cells) take in LARGE particles?
4. How does a cell take in small or liquid particles?