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Can diffusion be described as substances moving from high density to low density?
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What is the net movement of substances to regions of lower concentration called?
This process is called diffusion. If the substance moving is water, it is called osmosis.
What is substances move into cell without the cell using energy?
The names of these processes are diffusion or osmosis (osmosis is the diffusion of water molecules only). These are both passive and so do not require any energy. However, facilitated diffusion using carrier and channel proteins is also a passive process of moving substances across the cell membrane.
Would you expect osmosis and diffusion to the stop when substances are evenly distributed?
You would expect it to be even, but it is not. Since there is energy in the cell, (which can also be heat) molecules will constantly be moving around the cell.
What particles move from areas where there a lot of them to areas where there are fewer of them?
they are called moving particles.
Is a special type of diffusion that involves moving across a cell membrane?
osmosis is a special type of diffusion that involves water moving across a cell membrane hopefuly this helped :)
What are the processes involved in moving substances across the cell membrane?
Diffusion
What is the net movement of substances to regions of lower concentration called?
This process is called diffusion. If the substance moving is water, it is called osmosis.
How would you best describe simple diffusion?
Substances moving down a concentration gradient passively.
What is passive transpot?
Passive transport is the movement of substances across a cell membrane without the use of energy. It occurs along a concentration gradient, with substances moving from an area of high concentration to an area of low concentration. Examples include diffusion and facilitated diffusion.
What are some characteristics of facilitated diffusion?
The substances are moving from areas of high concentration to areas of low concentration with the help of a protein channel.
What is substances move into cell without the cell using energy?
The names of these processes are diffusion or osmosis (osmosis is the diffusion of water molecules only). These are both passive and so do not require any energy. However, facilitated diffusion using carrier and channel proteins is also a passive process of moving substances across the cell membrane.
The transport in which substances move from lower to high concentration is what?
The textbook definition of "passive transport" is moving from high to low concentration. You mean passive diffusion..
Which substances may pass through a cell membrane by simple diffusion?
Small, uncharged molecules can pass through the phospholipid bilayer, notably oxygen and carbondioxide.Other substances may pass through channel and carrier proteins by diffusion, sometimes referred to as facilitated diffusion as the proteins facilitate (make possible) the passage of substances that cannot cross the lipid layer. These substances include glucose and a variety of ions that are moving down their concentration gradients.
What is the pathway of movement for substances traveling across a capillary wall?
Capillaries have very thin walls which are semi-permeable.
Are substances broken down during the diffusion process?
Diffusion refers to the moving of a solute from an area of high concentration to an area of low concentration. No chemical reactions take place BECAUSE of diffusion. It is possible that something could be diffusing WHILE undergoing a chemical reaction, but the processes would be unrelated.
Would you expect osmosis and diffusion to the stop when substances are evenly distributed?
You would expect it to be even, but it is not. Since there is energy in the cell, (which can also be heat) molecules will constantly be moving around the cell.
What are Synonyms for diffusion?
passing through, moving through
