Cell Transport
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the movement of water molecules from an area of higher concentration to an area of lower concentration through a semi-permeable membrane.
2.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the process of moving substances across a cell membrane against their concentration gradient, which requires energy.
3.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of substances across a cell membrane without the need for energy, typically moving from high to low concentration.
4.
FLASHCARD QUESTION
Front
What is the concentration gradient?
Back
The concentration gradient is the difference in the concentration of a substance between two areas.
5.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
Facilitated diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane.
6.
FLASHCARD QUESTION
Front
How do molecules move during osmosis?
Back
Molecules move from an area of higher water concentration to an area of lower water concentration.
7.
FLASHCARD QUESTION
Front
What is the role of energy in active transport?
Back
Energy is required in active transport to move molecules against their concentration gradient.
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