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What method of transport is required when molecules must be moved against the concentration gradient?
There are multiple ways for cells to transport things across a difference in concentration. The most common process is diffusion, which is the movement from high concentration to low. Osmosis is the most popular example of this. Facilitated Diffusion is basically diffusion with the use of proteins that are specified for certain molecules. Active Transport is the method by which molecules are transported from low concentration to high concentration.
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What must happen when a concentration gradient is eliminated?
When a concentration gradient is eliminated, there will be no difference in the concentration of a substance across a region. This can lead to equilibrium, where molecules are evenly distributed, or in the case of active transport, energy may be required to maintain the concentration gradient.
How might a cell overcome a concentration gradient?
A cell can overcome a concentration gradient by using active transport mechanisms such as pumping ions or molecules against their concentration gradient. This requires energy in the form of ATP to move molecules from an area of low concentration to an area of high concentration. Additionally, cells can also utilize facilitated diffusion where integral membrane proteins help transport molecules down their concentration gradient.
Is pushing a cart through a store more like an active or passive transport why?
Pushing a cart through a store is an active transport process. Active transport requires energy input to move molecules or objects against a concentration gradient, which is similar to the effort required to push a cart through a store. Passive transport, on the other hand, does not require energy and relies on diffusion down a concentration gradient.
What type of organic molecule is needed for active transport?
ATP (adenosine triphosphate) is the organic molecule needed for active transport. It provides the energy required to pump molecules against their concentration gradient across a cell membrane.
How is the active transport different from diffusion?
The main difference is that diffusion does not require energy and active transport does require energy. Just for the record diffusion has a concentration that moves from high to low, and active transport has a concentration that moves from low to high. (Hope this helps to answer your question!)
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.
What must happen when a concentration gradient is eliminated?
When a concentration gradient is eliminated, there will be no difference in the concentration of a substance across a region. This can lead to equilibrium, where molecules are evenly distributed, or in the case of active transport, energy may be required to maintain the concentration gradient.
How might a cell overcome a concentration gradient?
A cell can overcome a concentration gradient by using active transport mechanisms such as pumping ions or molecules against their concentration gradient. This requires energy in the form of ATP to move molecules from an area of low concentration to an area of high concentration. Additionally, cells can also utilize facilitated diffusion where integral membrane proteins help transport molecules down their concentration gradient.
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.
How does the process of active transport enable the movement of molecules against their concentration gradient?
Active transport is a process in which cells use energy to move molecules against their concentration gradient, from an area of low concentration to an area of high concentration. This is achieved by using specialized proteins called pumps that actively transport the molecules across the cell membrane. The energy required for this process is usually provided by ATP, the cell's energy currency.
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.
How does the process of active transport enable the movement of molecules against the concentration gradient?
Active transport is a process in which cells use energy to move molecules against their concentration gradient, from an area of low concentration to an area of high concentration. This is achieved by using specialized proteins called pumps that actively transport the molecules across the cell membrane. The energy required for this process is usually provided by ATP, the cell's energy currency. By using active transport, cells can maintain the proper balance of molecules inside and outside the cell, allowing them to function properly.
Is energy required to move molecules from a high concentration to a low concentration?
Yes, energy is required to move molecules from a high concentration to a low concentration. This process is known as passive transport and it relies on the kinetic energy of the molecules themselves to move across the concentration gradient.
What is the random movement of molecules and ions down their concentration gradient called?
The random movement of molecules and ions down their concentration gradient (meaning from an area of high concentration to an area of low concentration) is called simple diffusion. Simple diffusion is related to the magnitude of driving force, permeability of the membrane, and surface area.
How are facilitated diffusion and active transport similar ad how do the differ?
both these processes do the transport against the concentration gradient uh no facilitated diffusion doesnt go against the gradient, the similiarity is that they both use carrier protiens
How are glucose molecules moved into cell?
Glucose can move into cells by active or passive transport, in both cases membrane-spanning proteins are required. Active transport (SGLT) uses the concentration gradient of Sodium ions to move glucose against its concentration gradient. Passive transporters (GLUT) are only effective if the concentration of glucose in the cell is lower than outside the cell.
What is required when cells must move materials against a concentration gradient?
Active transport which requires ATP.
