What is the main difference between passive and active transport?

Transport Mechanisms in Cell Membranes

Interactive Video
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Biology, Science
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9th - 12th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Passive transport requires energy, while active transport does not.
Active transport requires energy, while passive transport does not.
Both require energy but in different forms.
Neither requires energy.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which direction do materials move during diffusion?
Only into the cell
In random directions
From low to high concentration
From high to low concentration
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of molecules can pass through the lipid bilayer by simple diffusion?
Large polar molecules
Charged ions
Proteins
Non-polar molecules
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do channel proteins play in facilitated diffusion?
They form a pore for specific molecules to pass through.
They change the concentration gradient.
They provide energy for transport.
They act as a barrier to prevent diffusion.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do carrier proteins differ from channel proteins?
Carrier proteins are non-specific.
Carrier proteins only transport water.
Carrier proteins change shape to transport molecules.
Carrier proteins require energy to function.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the specificity of transport proteins?
They ensure only specific molecules can pass through.
They prevent any molecules from passing through.
They allow any molecule to pass through.
They require energy to function.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of R groups in transport proteins?
They provide energy for transport.
They determine the protein's specificity.
They block the passage of molecules.
They are not involved in transport.
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