
Passive Transport: Simple, Facilitated, and Osmosis
Flashcard
•
Biology
•
10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of molecules across a cell membrane without the use of energy, relying on concentration gradients.
2.
FLASHCARD QUESTION
Front
What is the role of the plasma membrane in cellular homeostasis?
Back
The plasma membrane controls which molecules enter and exit the cell, helping to maintain stable internal conditions.
3.
FLASHCARD QUESTION
Front
Define homeostasis.
Back
Homeostasis is the process by which a cell or organism maintains stable internal conditions despite changes in the external environment.
4.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water across a selectively permeable membrane from an area of high water concentration to an area of low water concentration.
5.
FLASHCARD QUESTION
Front
What is simple diffusion?
Back
Simple diffusion is the movement of molecules directly through the cell membrane from a region of high concentration to a region of low concentration without the use of energy or transport proteins.
6.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
Facilitated diffusion is the process of transporting molecules across a cell membrane via protein channels, without the use of energy.
7.
FLASHCARD QUESTION
Front
What is a selectively permeable membrane?
Back
A selectively permeable membrane allows certain molecules to pass through while blocking others, crucial for maintaining homeostasis.
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