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Is Active transport high to low or low to high concentration?
Active transport. To go "upstream" requires ATP, a form of energy, to pump against the ion gradient.
Why does active transport energy?
Active transport requires energy because you are going against a gradient. Active transportation moving from low to high concentration, while passive transportation such as osmosis and diffusion go from high to low concentration. One example of passive transportation is a river. Floating downstream does not require any energy. You are simply moving with the gradient. If you wanted to go upstream, you would have to paddle. This requires an input of energy similar to active transport.
What is the difference between active and passive cellular transport?
Active transport requires energy; passive transport does not.
Why is energy needed for transport?
Molecules are moving against a 'concentration' gradient. Active transportation moving from low to high concentration, while passive transportation such as osmosis and diffusion go from high to low concentration.
During active transport substances move from regions of what?
in active transport, where do molecules always go
Does active transport requires energy?
Yes, active transport requires energy because it moves molecules or ions against their concentration gradient, from an area of low concentration to an area of high concentration. This process requires the cell to expend energy in the form of ATP to drive the transport proteins involved in active transport.
What is the transport of materials against a concentration gradient called?
The process of moving materials against a concentration gradient is called active transport. Active transport generally uses a protein pump to move molecules from an area of low concentration to an area of high concentration; in order to perform an active transport, the cell must use some of its energy to initiate the reaction.
What kind of concentration does passive transport go to?
From high concentration to low concentration.
Which way do molecules move during active transport?
Molecules move against their concentration gradient, from an area of low concentration to high concentration, in active transport. This process requires energy input to pump the molecules across a membrane using specific proteins like pumps or carriers.
Why does active transport happen?
Active transport requires energy because you are going against a gradient. Active transportation moving from low to high concentration, while passive transportation such as osmosis and diffusion go from high to low concentration. One example of passive transportation is a river. Floating downstream does not require any energy. You are simply moving with the gradient. If you wanted to go upstream, you would have to paddle. This requires an input of energy similar to active transport.
Is oxygen a passive transport or an active transport?
They move via passive transport. They move by diffusion. It's only active transport if A) the cell is too big or not fatty enough to move through the membrane and needs help or B) is making the molecules move unnaturally (low to high). Osmosis is also passive transport, but only is used when referring to the movement of water.
Why is energy required for active transport to take place across a cell menbrane?
Molecules are moving against a 'concentration' gradient. Active transportation moving from low to high concentration, while passive transportation such as osmosis and diffusion go from high to low concentration.
