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Terms in this set (21)
Selectively Permeable or the "Gatekeeper"
Only certain good substances (Water, Oxygen) can pass through the cell membrane, which means the membrane is?
The cell membrane allows large molecules like salt through. True or False?
What are the 3 modes of transport?
Diffusion, Osmosis, Active Transport
Movement of molecules from an area in which they are highly concentrated to an area which they are less concentrated is what mode of transport?
Diffusion movement of water across a selectively permeable membrane. is what mode of transport?
Movement of materials through a cell membrane without using energy (High to Low) is which type of transport: Active or Passive?
Diffusion is what type of transport mode, active or passive?
Osmosis is what type of transport mode, active or passive?
If a cell needs to take in a substance that is in higher concentration inside the cell than outside it would be be considered active or passive transport?
Movement of materials through a cell membrane requires energy (Low to High) is what type of transport
Proteins "pick up" molecules outside the cell and carry them in (Calcium, Potassium, Sodium) is called what?
Cell surrounds or engulfs a particle is called what?
Transport by Engulfing
All living things have certain requirements they must satisfy in order to remain alive (Exchange gasses, take in water, minerals, food, eliminate gases). These tasks occur at the cellular level and require that molecules move through the membrane that surrounds the cell. What is this entire process called.
As a cells size increases more of it's cytoplasm is located farther from the ________ ________?
Once a molecule enters the cell it is carried to its destination by streams of moving ________?
In a very large cell it is harder for molecules to reach the center of the cell. True or False?
In a very large cell the streams of cytoplasm must travel ________ to bring materials to all parts of the cell?
In a very large cell it is easier for molecules to reach the center of the cell. True or False?
Waste in a cell does need to be removed. True or False
Waste in a cell does not need to be removed. True or False?
Sets with similar terms
Science Chapter 2 - Lesson 3
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