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How do diffusion osmosis facilitated diffusion and active transport diffusion differ?
Wiki User
∙ 15y ago
Diffusion is the movement of molecules from an area of greater concentration to an area of lesser concentration. e.g. Exchange of gases in the lungs or body tissues. Osmosis is the diffusion of water through a semi-permeable membrane from an area of low solute to an area of high solute concentration. Faciliated diffusion is the passive transport of molecules down a concentration gradient. It is simply diffusion that involves a protein to make diffusion happen more easily across a cell membrane. Active transport is the moving of substances across the cell membrane using the cell's energy. Molecules are moved against a concentration gradient, i.e they move from an area of lesser concentration to an area of greater concentration. Tlhis is done by a carrier molecules which gets its energy from ATP.
Wiki User
∙ 15y ago
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Why does active transport require more energy than osmosis or facilitated diffusion?
Active transport requires more energy than diffusion this is because during active transport, the molecules are being transported against and toward the concentration gradient whereas in diffusion, the molecules go from the concentration gradient.
Is diffusion through ion channels a form of active transport?
Facilitated diffusion, or diffusion through ion channels, is not a form of active transport. It is a spontaneous passive transport.
Are diffusion and osmosis types of active transport?
Yes.
What does active transport and facilitated diffusion have in common?
Active transport is when proteins move substances into the cell while expending energy. Facilitated diffusion is the movement of chemicals through a protein into a cell.
Both active transport and facilitated diffusion involve what?
Carrier proteins
Is osmosis an example of facilitated diffusion or active transport?
No. Facilitated diffusion is an example of passive transport because it does not require the cell to expend energy.
What includes diffusion osmosis and facilitated diffusion?
diffusion and osmosis are types of ways to get materials into or out of a cell
What are the types of movement through a membrane?
Osmosis, diffusion, facilitated diffusion, active transport
Give 2 examples of passive transport?
Passive transport is when molecules pass freely through the membrane moving from the higher concentration area to the region of lower concentration. Three examples of this are diffusion, osmosis, and active transport.
How are reactants delivered to the cell?
Nutrients move from the blood into the muscle cells by osmosis, diffusion, facilitated diffusion, and active transport.
What process is the is the opposite of active transport?
exocytosis which is when cells absorb materials from outside the cell by engulfing it with their cell membrane
Is facilitated diffusion active?
No. Facilitated diffusion is a type of passive transport.
What processes can take place in a root hair cell when oxygen is not available?
active transport and osmosis
What id the difference between active and passive transport?
Active transport requires ATP and passive transport does not. Active transport goes against the concentration gradient and passive transport goes with the concentration gradient and includes osmosis, diffusion and facilitated diffusion.
Diffusion with a channel protein?
They are the channels by which molecules enter in facilitated diffusion.
What two processes transport materials through the semi permeable membrane?
There's more than two. There's diffusion, facilitated diffusion, and active transport. And water moves by osmosis
What are two forms of passive transport of a cell?
Two forms of passive transport (or transport not involving energy/ATP) are diffusion and facilitated diffusion. Another form is osmosis. Also keep in mind that passive transport is for smaller particles.
