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Energy for primary active transport comes from ATP molecules. ATP is produced by the mitochondria. e.g. Na+/K+ ATPases are archetypal primary active transporters and they transport 3 Na+ ions out of cells and 2 K+ ions into cells by hydrolyzing one molecule of ATP.
Energy for secondary active transport is stored in an established concentration gradient of ions across the cell membrane and drives transport with the tendency of ions to move from an area of high concentration to an area of lower concentration. e.g. Na+/glucose secondary transporters use the Na+ gradient (higher outside cells than inside) established by Na+/K+ ATPases to transport a molecule of glucose along with a sodium ion into cells.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoActive transport requires the energy of ATP to move molecules from an area of lessor concentration to a area of greater concentration.
Wiki User
∙ 9y agoThe energy needed for active transport is usually supplied by ATP.
Wiki User
∙ 12y agoprotein targeting/ protein sorting
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Active transport involves what?
Active Transport requires first of all Energy which is obtained from respiration and secondly a selectively permeable membrane through which movement of materials can take place.
A passive process requires energy?
An active process if that is carried out on the expense of energy and the passive processes is that occurs spontaneously in nature. for example consider two solutions separated by a membrane, one side you have high concentration of glucose than other. While passive transport of glucose will take place across the concentration gradient, for active transport, that is transport against concentration gradient, require external source of energy. Passive processes are thermodynamically favourable. The active processes are thermodynamically unfavourable. Thus in biological system most of the active processes are coupled with deposphorylation of ATP. The energy releases by the breaking of phosphodiester bond is used to carry out the active processes.
Is osmosis an active transport?
It is a type of passive diffusion, as the water travels along a concentration gradiant. As opposed to active transport, where the substances can pass against a concentration gradiant.
What is the active transport in a cell call?
It can be called phagocytosis when referring to food and it can be called pinocytosis when referring to fluid, but most of the times it's called active transport. It can also be called exocytosis and endocytosis.
Which two processes are most closely associated with structure A?
Active transport and diffusion are most closely associated with Structure A.
What molecule supplies the energy for active transport?
ATP supplies the energy for active transport.
The process of active transport requires the most direct use of?
Active transport requires cells to spend energy, usually in the form of ATP
Active transport involves what?
Active Transport requires first of all Energy which is obtained from respiration and secondly a selectively permeable membrane through which movement of materials can take place.
Is active transport low concentration to high concentration?
Yes. Active transport requires energy; it is transport from an area of low concentration to an area of high concentration. Passive transport doesn't require energy; it is transport from an area of high concentration to an area of low concentration.
How are active transport and passive transport different from each other?
The most basic difference between active and passive transport is that active requires energy while passive does not. You would require active transport if the substance is going against the concentration of molecules inside and outside of the membrane or if the substance is particularly large. Passive is more for smaller molecules that go with the concentration of the molecules inside and outside of the membrane.
What is the key feature of active transport?
The key feature of active transport proteins is that they can use chemical energy to move a substance against its concentration gradient. Most use energy from a molecule called ATP, either direvtly or indirectly.
How are most nutrients absorbed through the mucosa of the intestinal villa?
Active transport driven directly or indirectly by metabolic energy ;)
What happens to most of energy from breakdown of food?
We concentrate on glucose breakdown, since it dominates energy production in most animal cells.
What does active transport mean in medical terms?
active transportation is the one that requires energy. passive transportation doesn't require energy and particles move because of differences of concentration - it's diffusion and osmosis. most common energy source in cells is ATP, also ADP and AMP. active transportation also requires special proteins in cell membrane. those proteins use energy to transport iones and molecules from one side of membrane to another.
What happens to most of the from the breakdown of food?
We concentrate on glucose breakdown, since it dominates energy production in most animal cells.
What are different opinions on energy efficient transport?
I think Bicycle is the most energy efficient transport.
What is the most common type of active transport?
Sodium pump
