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Substances like oxygen pass through the cell without the use of energy and move from an area of high concentration to an area of low concentration?
Wiki User
∙ 9y ago
That is the description of simple diffusion.
Wiki User
∙ 9y ago
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What best describes passive transport?
it moves materials from areas of high concentration to areas of low concentrationit moves materials of high concentration to areas of low concentration
What kind of substances are likely to move via passive transport through phospholipod bilyer?
transport of materials through cell wall without energy.
In order for substances to move through the cell membrane what must there be?
For passive diffusion, a concentration gradient which uses pore proteins. For active diffusion, carrier proteins and energy are required.
What is the energy source for co-transport?
the movement of one of the transported substances down its concentration gradient
Are substances able to travel against their concentration gradient?
Yes, but only with an expenditure of energy which characterizes active transport.
What is the movement of substances through a cell membrane without the use of cell energy?
passive transport
What is the natural tendency of molecules to spread from an area high concentration to an area of low concentration?
Diffusion is the movement of molecules from a high concentration to a low concentration without using ATP (energy). A related term: Osmosis is the movement of water molecules from a high concentration to a low concentration without using ATP (energy). In contrast, active transport is the movement of molecules from a low concentration to a high concentration but DOES use ATP (energy).
What is the process that requires cellular energy to move a substance against its concentration gradient?
Active transport uses energy to move substances against the concentration gradient.
Do Substances naturally diffuse up a concentration?
no down a concentration gradient high to low if its low to high it requires energy
What best describes passive transport?
it moves materials from areas of high concentration to areas of low concentrationit moves materials of high concentration to areas of low concentration
What kind of substances are likely to move via passive transport through phospholipod bilyer?
transport of materials through cell wall without energy.
