Cell Membrane and Cell Transport
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a hypertonic solution?
Back
A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to move out of the cell, leading to cell shrinkage.
2.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the movement of solute particles from an area of high concentration to an area of low concentration until equilibrium is reached.
3.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
4.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
Facilitated diffusion is the process by which large or charged molecules cross the cell membrane with the help of transport proteins, without the use of energy.
5.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy (ATP).
6.
FLASHCARD QUESTION
Front
How does temperature affect the rate of diffusion?
Back
Higher temperature increases the rate of diffusion because it provides more energy to the molecules, causing them to move faster.
7.
FLASHCARD QUESTION
Front
What is an isotonic solution?
Back
An isotonic solution has the same concentration of solutes as the inside of the cell, resulting in no net movement of water.
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