NYS Diffusion Lab Review

Flashcard
•
Science
•
9th - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until they are evenly distributed.
2.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
3.
FLASHCARD QUESTION
Front
What is the role of the cell membrane?
Back
The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.
4.
FLASHCARD QUESTION
Front
What is a selectively permeable membrane?
Back
A selectively permeable membrane allows certain molecules to pass through while blocking others.
5.
FLASHCARD QUESTION
Front
What is the purpose of Benedict's solution?
Back
Benedict's solution is used to test for the presence of reducing sugars, such as glucose.
6.
FLASHCARD QUESTION
Front
What color indicates a positive test for glucose using Benedict's solution?
Back
A positive test for glucose with Benedict's solution changes the color from blue to yellow/orange/brown.
7.
FLASHCARD QUESTION
Front
What is the initial color of starch indicator solution?
Back
The initial color of starch indicator solution is amber.
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