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Is the movement of molecules across a membrane down the concentration gradient a passive or active process?
The movement of molecules across a membrane down the concentration gradient is a passive process.
What are the two things needed for osmosis to take place?
Partially permeable membrane(visking tubing) and water
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
What is the process that occurs when molecules move from an area of low concentration to an area of high concentration, against the concentration gradient?
The process that occurs when molecules move from an area of low concentration to an area of high concentration, against the concentration gradient, is called active transport. This process requires energy to pump molecules across the cell membrane.
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.
Is the movement of molecules across a membrane down the concentration gradient a passive or active process?
The movement of molecules across a membrane down the concentration gradient is a passive process.
What term describes the diffusion of the water through a semipermeable membrane down a concentration gradient?
Osmosis is the diffusion of water molecules down a concentration gradient through a semi-permeable membrane
What are the two things needed for osmosis to take place?
Partially permeable membrane(visking tubing) and water
The net direction that an ion or molecule moves is?
determined by the concentration gradient and electrical gradient across the membrane. If the net movement of ions or molecules is down their concentration gradient and towards the opposite electrical charge, they will move across the membrane.
Does constant gradient have anything to do with passive transport?
No, constant gradient does not directly relate to passive transport. Passive transport is the movement of molecules across a membrane without the use of cellular energy, while constant gradient refers to a consistent change in concentration over a distance. However, the presence of a constant gradient can facilitate passive transport by driving the movement of molecules down their concentration gradient.
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
Does osmosis go with the concentration gradient?
Yes, osmosis involves the movement of water molecules across a selectively permeable membrane from an area of high water concentration to an area of low water concentration. This movement occurs in response to the concentration gradient of water molecules.
Movement of molecules through a membrane by filtration depends upon the presence of?
pores or openings in the membrane that allow the molecules to pass through based on their size and charge. The movement is driven by the concentration gradient, with molecules moving from an area of higher concentration to an area of lower concentration. Size, charge, and concentration gradient all play a role in the filtration process.
Is osmosis with or against concentration gradient?
Osmosis is with the concentration gradient, meaning that it involves the movement of water molecules from an area of low solute concentration to an area of high solute concentration across a semi-permeable membrane.
What is a diffused molecule from a semipermeable membrane?
What is the situation? Provided a concentration gradient and a molecule that passes through a membrane, diffusion will happen. Generally small and nonpolar molecules will pass through a membrane down a concentration gradient. That doesn't answer your question but it may be the answer your looking for.
What is the process that occurs when molecules move from an area of low concentration to an area of high concentration, against the concentration gradient?
The process that occurs when molecules move from an area of low concentration to an area of high concentration, against the concentration gradient, is called active transport. This process requires energy to pump molecules across the cell membrane.
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.
