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Diffusion
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What is diffusion across a biological membrane?
It is when molecules in a cell naturally move from a high-density area in the cell to one of lower density.
What is the process in which molecules move across the cell membrane from a region of low concentration to a region of high concentration?
Active Transport - the process of moving particles across a cell membrane against a concentration gradient <- right one
Which is correct regarding diffusion?
It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration
When particles are moved through a membrane from a region of low concentration to a region oh high concentration the process is called what?
active transport
What mechanism are active?
Active transport mechanisms occur when particles move from a region of lower concentration to one of higher concentration. This requires energy, which comes from cellular metabolism and, specifically, from a molecule called adenosinetriphosphate(ATP).
Why must cells use energy to move particles from region of lower concentration to a region of higher concentration?
equilibrium
Why must cells use energy to move particles from a region of lower concentration to a region of higher concentration?
equilibrium
Why must cells use energy to move particles from a region of lower concencentration to a region of higher concentration?
equilibrium
A cell moves particles from a region of lesser concentration to a region of greater concentration by what?
The process in which particles move from high to low concentration is called diffusion .
What is diffusion across a biological membrane?
It is when molecules in a cell naturally move from a high-density area in the cell to one of lower density.
Is the process in which molecules move across a cell membrane from a region of low concentration to a region of high concentration.?
Active Transport - the process of moving particles across a cell membrane against a concentration gradient <- right one
What is the process in which molecules move across the cell membrane from a region of low concentration to a region of high concentration?
Active Transport - the process of moving particles across a cell membrane against a concentration gradient <- right one
When particles are moves through a membrane from a region of high concentration to a region of low concentration?
Diffusion
What is the name of the process where there is a movement of particles from a region of high concentration to a region of low concentration until they are evenly distributed?
Diffusion is the net movement of particles from an area of high concentration to an area of low concentration.
How do particles move from areas from lower concentration to areas of higher concentration?
The answer is is OSMOSIS the spontaneous net movement of water across a membrane from a region of low concentration to a solution with a high concentration, down a solute concentration gradient.
What is a similarity between osmosis and diffusion?
they are both the movement of particles from a region of high concentration to a region of low concentration down a concentration gradient
What is the movement of particles of a material from regions of higher concentration to regions of lower concentration of that material?
DiffusionThe movement of particles from a region of higher concentration to a region of lower concentration is called diffusion. However, the movement of water through a semi-permeable membrane (from an area of high concentration to an area of low concentration) is specifically called osmosis.
