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2012-11-18 06:09:22
2012-11-18 06:09:22

Passive Transport, doesn't require energy.

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Movement across a membrane that does require energy is called active transport.


"Passive" mean that it does not require energy, therefore the passive transport of material across the membrane means that it can transport the material (cells or whatever) without the function of energy across the membrane.




This type of transport is called active transport because it requires energy.


Active transport is the energy to move substances. The substances moves across the plasma membrane.



Passive transport is the movement of molecules across the cell membrane and does not require energy. It is dependent on the permeability of the cell membrane. There are three main kinds of passive transport - Diffusion, Osmosis and Facilitated Diffusion.


Osmosis is the diffusion of water across a membrane, and does not require the input of energy. Active transport requires energy input.


The two ways that materials can pass through the cell membrane are active transport and passive transport. In active transport the molecules cannot pass freely across the membrane and have to be carried across in ways that require energy. In passive transport the molecules can pass freely across the membrane in ways that do not take any energy.


Active transport requires energy and proteins to move the materials across the cell membrane. This is in contrast to osmosis, which doesn't require energy to move the material.


I'm going to go with osmosis, which is the passive transport of water across a membrane from higher to lower concentration.


Passive transport refers to the movement of molecules across a cell membrane. An example of a sentence would be: "Passive transport does not require energy to work".



Active Transport : requires energy -- materials move across membrane from low to high concentration -- When a bolder is being pushed up a hill it requires energy from the object pushing it, thus it is active.Passive Transport: does NOT require energy -- materials move across membrane from high to low concentration -- When a bolder rolls down a hill it doesnt require energy thus it is Passive.


Active transport is the movement of molecules across a membrane requiring energy to be expanded by the cell. ACTIVE TRANSPORT REQUIRES ENERGY. Passive transport is diffusion across a membrane requiring only random motion of molecules with no energy expanded by the cell. PASSIVE TRANSPORT REQUIRES NO ENERGY.


Active Transport is the passage of materials across the membrane through the expenditure of energy. Passive Transport is the passage of materials across the membrane without the expenditure of energy. Bulk Transport is the type of active transport. Diffusion and Osmosis are type of passive transport.


Facilitated diffusion across a biological membrane requires energy. Passive diffusion across a cellular membrane does not require any energy from the cell.


Passive transport refers to the movement of biochemicals or other atomic substances across a membrane. Passive transport differs from active transport in that it doesn't require the input of any additional chemical energy.


Passive transport is where materials are transported across a membrane without the use of stored energy. Active transport is where materials are transported across a membrane using ATP, or another source of stored cellular energy. Diffusion is where solutes flow across a membrane in response to a concentration gradient, and requires no energy input to occur. Therefore, diffusion is a form of passive transport.





A process known as passive transport helps molecules to diffuse across a membrane. Passive transport does not involve the use of chemical energy, unlike active transport does.


Molecular Transport (in cells) is the movement of materials across a cell membrane. The two kinds of Molecular Transport used in organisms are Active Transport and Passive Transport. Active Transport- materials move across the plasma membrane with the use of energy (like Adenosine Triphosphate) Passive Transport- materials move accross the plasma membrane without the use of energy



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