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Chapter 3.2()

QuestionAnswer
What is diffusion(A)? It is the main method by which small molecules move across the cell membrane.
What is diffusion(B)? A process by which molecules move from an area of higher concentration to an area of lower concentration.
What are molecules always doing? Moving
What do molecules do once they "bump" into each other? They push away from each other.
What will molecules eventually do throughout an area? They will spread evenly.
How do organisms in pond water(protists) obtain oxygen? The obtain oxygen from the water around them.
What molecule is there more of on the outside of the cell than the inside of the cell? Oxygen
Where is there a higher concentration of of oxygen molecules, inside the cell, or in the water? In the water.
The cell membrane is what to oxygen molecules? permeable
What is osmosis? It is the diffusion of water through a selectively permeable membrane.
What cannot cell function properly without? Water
What do all cellular processes depend on? Osmosis
What don't osmosis and diffusion require. Cellular energy
What is passive transport? It is the movement of dissolved materials through the cell membrane without using cellular energy.
What is active transport? The movement of materials using cellular energy.
Created by: noahnoahnoah1324
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