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Facilitated diffusion
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Cell must expend energy to transport substances using?
Facilitated diffusion.
A cell must expend energy to transport substances using?
A cell must expend energy to transport substances across its membrane against their concentration gradient, a process known as active transport. This energy is usually provided by ATP, the cell's main energy currency.
What is it called when substances move past the membrane without using energy?
Passive transport is when substances move past the membrane without using any energy.
What is it called when substances move past the membrane without using any energy?
Passive transport is when substances move past the membrane without using any energy.
Which type of cell transport does not expend energy?
Active transport is when the cell moves particles from an area of low concentration on one side of the cell membrane, to an area of high conc. on the other side, by means of a protein embedded in the membrane.
What is the process which cells use to bring in or take out substances using energy?
Cells use active transport to bring in or take out substances using energy. This process requires the cell to expend energy in the form of ATP to move molecules against their concentration gradient, from an area of low concentration to an area of high concentration. This allows cells to maintain proper internal conditions and regulate the movement of substances in and out of the cell.
Is symport is active transport or passive transport?
Symport is a form of active transport. It involves the movement of two or more substances across a cell membrane in the same direction, using energy typically derived from the electrochemical gradient of one of the substances. This process requires energy input because it often moves substances against their concentration gradients.
Why are endocytosis and exocytosis known as examples of active transport?
Endocytosis and exocytosis involve the transport of molecules across a cell membrane using energy in the form of ATP. In endocytosis, cells engulf substances by creating vesicles, and in exocytosis, cells expel substances by fusing vesicles with the cell membrane. Both processes require energy to move substances against their concentration gradient, making them examples of active transport.
Active transport is the process of what?
Active transport is the process by which a cell uses energy to move molecules or ions across a cell membrane against their concentration gradient. This process requires the use of ATP energy to pump substances from an area of low concentration to an area of high concentration.
How does active transport work against the concentration gradient to move substances across a cell membrane?
Active transport is a process in which cells use energy to move substances against their concentration gradient, from an area of low concentration to an area of high concentration, across the cell membrane. This is achieved by using specialized proteins called pumps that actively transport the substances across the membrane, requiring energy in the form of ATP.
Is vesicular transport active or passive?
The contractile vacuole collects water, then pumps it out of the cell. It requires energy to be expended, so it is a type of active transport.
Do passive and active transport requires energy?
Passive transport does not require energy as it relies on the movement of molecules from an area of high concentration to low concentration, driven by the concentration gradient. Active transport, on the other hand, requires energy in the form of adenosine triphosphate (ATP) to move molecules against their concentration gradient, from low concentration to high concentration.
