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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.
What two forces drive the passive transport of ions across a membrane?
The two forces that drive passive transport of ions across a membrane are concentration gradient and electrochemical gradient. The concentration gradient occurs when ions move from an area of higher concentration to an area of lower concentration, while the electrochemical gradient is established by the combined forces of the ion's concentration gradient and the electrical charge across the membrane.
What regulates the rate of passive transport?
The rate of passive transport is regulated by factors such as the concentration gradient of the solute across the membrane, the surface area available for transport, the permeability of the membrane to the solute, and the temperature of the system. These factors affect the movement of molecules across the membrane without the use of energy.
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.
How are facilitated diffusion and active transport different in terms of their mechanisms of transporting molecules across the cell membrane?
Facilitated diffusion uses transport proteins to move molecules across the cell membrane with the concentration gradient, while active transport requires energy to move molecules against the concentration gradient.
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.
What two forces drive the passive transport of ions across a membrane?
The two forces that drive passive transport of ions across a membrane are concentration gradient and electrochemical gradient. The concentration gradient occurs when ions move from an area of higher concentration to an area of lower concentration, while the electrochemical gradient is established by the combined forces of the ion's concentration gradient and the electrical charge across the membrane.
What facilitated passive transport across a cell membrane?
concentration gradient
What regulates the rate of passive transport?
The rate of passive transport is regulated by factors such as the concentration gradient of the solute across the membrane, the surface area available for transport, the permeability of the membrane to the solute, and the temperature of the system. These factors affect the movement of molecules across the membrane without the use of energy.
Which transport mechanisms moves materials across a plasma membrane against an apparent concentration gradient?
active transport
Which process moves an ion across a cell membrane against a concentration gradient?
ative transport
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.
How does difference in concentration relate to movement of substances across the membrane?
the concentration gradient will help to bring stuff into the cell and to move stuff out. Osmosis likes to move with the concentration gradient. Moving with a concentration gradient is passive transport and moving against it is active transport
How are facilitated diffusion and active transport different in terms of their mechanisms of transporting molecules across the cell membrane?
Facilitated diffusion uses transport proteins to move molecules across the cell membrane with the concentration gradient, while active transport requires energy to move molecules against the concentration gradient.
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
What term describes the difference in the concentrations of a substance across a cell's membrane?
The term that describes the difference in concentrations of a substance across a cell's membrane is called the concentration gradient. This gradient drives the movement of substances such as ions or molecules across the membrane through processes like diffusion or active transport to achieve equilibrium.
How does passive transport move substances across a cell membrane in the direction of their concentration gradient?
Passive transport moves substances across a cell membrane in the direction of their concentration gradient without requiring energy input from the cell. This process relies on the natural movement of molecules from areas of high concentration to areas of low concentration, facilitated by protein channels or carriers in the cell membrane.
