What is osmosis?
AICE BIOLOGY MID TERM

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Biology
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12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The diffusion of water molecules through a semipermeable membrane.
2.
FLASHCARD QUESTION
Front
What is transduction in cell signaling?
Back
The process of converting a signal into a form the cell can respond to.
3.
FLASHCARD QUESTION
Front
What is the induced-fit hypothesis?
Back
The enzyme changes shape slightly to fit the substrate perfectly.
4.
FLASHCARD QUESTION
Front
What is competitive inhibition?
Back
When a molecule binds to the enzyme’s active site and blocks the substrate.
5.
FLASHCARD QUESTION
Front
What role does cholesterol play in cell membranes?
Back
It helps reduce the fluidity of the membrane.
6.
FLASHCARD QUESTION
Front
What is diffusion?
Back
The movement of molecules from an area of higher concentration to an area of lower concentration.
7.
FLASHCARD QUESTION
Front
What is active transport?
Back
The movement of molecules across a membrane against their concentration gradient, requiring energy.
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