What is osmosis?
A.P. Bio Semester 1 Exam

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•
Biology
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Osmosis is the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.
2.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration, occurring until equilibrium is reached.
3.
FLASHCARD QUESTION
Front
What distinguishes osmosis from diffusion?
Back
Osmosis specifically refers to the movement of water, while diffusion refers to the movement of any type of molecules.
4.
FLASHCARD QUESTION
Front
What are prokaryotes?
Back
Prokaryotes are single-celled organisms that lack membrane-bound organelles and have a simple cell structure, often with a cell wall.
5.
FLASHCARD QUESTION
Front
What are eukaryotes?
Back
Eukaryotes are organisms whose cells contain a nucleus and membrane-bound organelles, including plants, animals, and fungi.
6.
FLASHCARD QUESTION
Front
What is the role of enzymes in biological reactions?
Back
Enzymes are proteins that act as catalysts to speed up chemical reactions in the body without being consumed in the process.
7.
FLASHCARD QUESTION
Front
What factors affect enzyme activity?
Back
Enzyme activity can be affected by temperature, pH, substrate concentration, and the presence of inhibitors or activators.
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