What do enzymes do to activation energy?
Unit 1 - Cell Transport & Osmosis & Enzymes

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Science, Biology
•
9th - 11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Enzymes decrease activation energy, allowing reactions to occur more easily.
2.
FLASHCARD QUESTION
Front
What is the active site of an enzyme?
Back
The active site is the region on an enzyme where substrates bind and reactions occur.
3.
FLASHCARD QUESTION
Front
What does the sodium-potassium pump primarily do?
Back
The sodium-potassium pump usually pumps sodium out of the cell.
4.
FLASHCARD QUESTION
Front
What is a substance that speeds up a chemical reaction called?
Back
A catalyst.
5.
FLASHCARD QUESTION
Front
How do enzymes increase the rate of a chemical reaction?
Back
Enzymes increase the rate of a chemical reaction by reducing the activation energy.
6.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
7.
FLASHCARD QUESTION
Front
What is the difference between passive and active transport?
Back
Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.
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