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Transport proteins

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Are carrier proteins active or passive transport?

Carrier proteins facilitate active transport by moving molecules or ions across a cell membrane against their concentration gradient. They require energy in the form of ATP to transport substances across the membrane.


The use of energy to move substances across a cell membrane describes?

Active transport, which requires energy in the form of ATP to move substances against their concentration gradient across a cell membrane. This process involves specific protein pumps that bind to the molecule being transported, consuming ATP to change conformation and move the molecule across the membrane.


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.


What is the movement of materials across a membrane that requires energy input called?

Active transport is the movement of materials across a membrane that requires energy input, typically in the form of ATP. This process allows cells to move molecules against their concentration gradient, ensuring the proper balance of ions and molecules inside and outside the cell.


How is facilitated diffusion similar to active transport in terms of their mechanisms of moving substances across the cell membrane?

Facilitated diffusion and active transport are similar in that they both involve the movement of substances across the cell membrane with the help of specific proteins. However, facilitated diffusion does not require energy, while active transport does require energy in the form of ATP to move substances against their concentration gradient.


What is it called when molecules uses energy to move across a semipermeable membrane?

Active transport


Active transport requires what?

Energy-requiring process by which substances move across the plasma membrane against a concentration gradient.


What functions do carrier proteins perform in active transport?

Carrier proteins in active transport actively pump molecules or ions against their concentration gradient across a cell membrane using energy from ATP. They allow specific substances to be moved across the membrane in a controlled manner, helping to maintain cellular homeostasis and regulate cell function.


What is used to move a substance through a membrane in active transport?

Electrochemical gradient is used to move substances through a membrane in active transport.


The transport of a substance across the cell membrane against its concentration gradient is called what?

The transport of a substance across the cell membrane against its concentration gradient is called active transport.


How is active transport similar to facilitated diffusion in terms of their mechanisms of moving substances across the cell membrane?

Active transport and facilitated diffusion are both mechanisms used by cells to move substances across the cell membrane. Both processes require the use of specific proteins embedded in the cell membrane to facilitate the movement of substances. However, the key difference between the two is that active transport requires energy input from the cell to move substances against their concentration gradient, while facilitated diffusion does not require energy and moves substances down their concentration gradient.


Which processes are active transport of substances in and out of the cell?

cell membrane