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Active transport requires energy, typically derived from ATP, to move molecules against their concentration gradient. This process involves specific transport proteins or pumps in the cell membrane that facilitate the movement of substances into or out of the cell. Unlike passive transport, which relies on concentration differences, active transport allows cells to maintain essential concentrations of ions and nutrients necessary for various cellular functions.
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What is it called when molecules uses energy to move across a semipermeable membrane?
Active transport
What are two differences between active transport and passive transport in terms of energy?
Active transport requires energy in the form of ATP to move molecules across the cell membrane against their concentration gradient, while passive transport does not require energy and relies on the concentration gradient to move molecules from an area of higher concentration to an area of lower concentration. Additionally, active transport can move molecules in both directions across the membrane, while passive transport can only move molecules down the concentration gradient.
What type of transport requires energy to move molecules from an area with low concentration to an area of high concentration?
Active transport is needed to move molecules from an area of low concentration to an area of higher concentration against their concentration gradient. ATP is used as the power source.
What ways of moving molecules across a membrane requires energy?
Active transport requires energy to move molecules across a membrane against their concentration gradient. This process is facilitated by specific carrier proteins embedded in the membrane that use energy, usually in the form of ATP, to transport molecules.
Active transprort occurs when someting is used to move substances through a membrane?
Active transport is a process that requires energy to move molecules across a cell membrane against their concentration gradient. This process involves specific transport proteins that act as pumps to move molecules such as ions or other nutrients against the concentration gradient. ATP is typically required as an energy source for active transport to occur.
When engery is required from a cell to move molecules across the cell membrane it is called?
It is called active transport.
Is active transport able to move molecules against the concentration gradient?
Yes, active transport is able to move molecules against the concentration gradient.
Does active transport move molecules against the concentration gradient?
Yes, active transport moves molecules against the concentration gradient.
What two characteristics describe active transport?
Two characteristics that describe active transport are that active transport: -require energy -always maintain effervescence, which is the the state in which molecules move from a lower concentration to a higher one.
Carrier molecules in the plasma membrane are only required for active transport?
Carrier molecules in the plasma membrane are actually used for both active and passive transport of molecules. In active transport, carrier proteins use energy to move molecules against their concentration gradient, while in passive transport, carrier proteins facilitate the movement of molecules down their concentration gradient without the need for energy input.
What is it called when molecules uses energy to move across a semipermeable membrane?
Active transport
How does facilitated transport differ from active transport in terms of the energy requirements and mechanisms involved in moving molecules across a cell membrane?
Facilitated transport and active transport are two ways molecules can move across a cell membrane. Facilitated transport does not require energy from the cell, while active transport does require energy in the form of ATP. Facilitated transport uses carrier proteins to help molecules move across the membrane, while active transport uses pumps to move molecules against their concentration gradient.
How is active transport diffrent from osmosis?
Active transport occurs when molecules are moved from an area of low concentration to an area of high concentration. The cell membrane acts as a semi-permeable barrier during the process. Energy is required for active transport. Osmosis is a type of passive transport. Passive transport is similar to active transport except it requires no energy and molecules move from an area of high concentration to an area of low concentration. Osmosis occurs only if the molecules moving across the cell membrane are WATER molecules.
Does active transport result in an even distribution of molecules?
No. Active transport uses energy to transport specific molecules against a concentration gradient. Passive transport will result in an even distribution of molecules because they allow molecules to move down a concentration gradient.
In what ways do molecules move?
it moves by diffusion, osmosis and active transport
Does Passive transport uses ATP to move molecules against their concentration gradient?
No, passive transport does not require ATP because it moves molecules along their concentration gradient, from an area of higher concentration to an area of lower concentration. ATP is only required for active transport, which moves molecules against their concentration gradient.
Is facilitated diffusion an example of active transport?
No, facilitated diffusion is a type of passive transport where molecules move across a cell membrane with the help of transport proteins. Active transport, on the other hand, requires energy to move molecules against their concentration gradient.
