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Why does osmosis require a semipermeable membrane while diffusion does not?
Osmosis involves the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. The presence of a semipermeable membrane is necessary to prevent the movement of solute molecules while allowing water molecules to pass through. Diffusion, on the other hand, is the movement of molecules from an area of higher concentration to an area of lower concentration and does not require a membrane for movement.
A selectively permeable membrane separates solution a and b. the concentration of water molecules in solution b is higher than that in solution a. describe how the water molecules will move?
Water molecules will move from solution b, where their concentration is higher, to solution a, where their concentration is lower. This movement occurs through the selectively permeable membrane via osmosis, aiming to balance the concentration of water on both sides of the membrane. As a result, water will continue to flow from solution b to solution a until equilibrium is reached.
What is the term for the movement of solvent molecules from high to low concentration through a new permeable membrane?
This process is called osmosis. It occurs when solvent molecules move across a semipermeable membrane from an area of high concentration to an area of low concentration to equalize the concentration levels on both sides of the membrane.
When osmosis occurs specifically which molecule move across a semipermeable membrane?
Osmosis is defined as the passive movement of water molecules from a region of low solute concentration to a region of high solute concentration through a partially permeable membrane; water molecules are thus exhibiting the movement.
Is this correct no energy is required for the movement of water molecules across the cell membrane?
No, energy is required for the movement of water molecules across the cell membrane. This process is known as osmosis, where water moves from an area of low solute concentration to an area of high solute concentration, requiring energy to overcome the concentration gradient.
Which process would describe the movement of sugar molecules through a membrane from a region of higher concentration of a region of lower concentration?
Diffusion
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.
How do you describe osmosis?
Osmosis is the movement of water molecules from a region of higher concentration to a region of lower concentration through a selectively permeable membrane. This process helps to balance the concentration of solutes on either side of the membrane.
Why does osmosis require a semipermeable membrane while diffusion does not?
Osmosis involves the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. The presence of a semipermeable membrane is necessary to prevent the movement of solute molecules while allowing water molecules to pass through. Diffusion, on the other hand, is the movement of molecules from an area of higher concentration to an area of lower concentration and does not require a membrane for movement.
What is the difference and similarities between osmosis and simple diffusion?
Osmosis is the movement of water molecules across a selectively permeable membrane from an area of higher water concentration to an area of lower water concentration. Simple diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. The main similarity is that both processes involve the movement of molecules across a membrane, but osmosis specifically refers to the movement of water molecules.
Is osmosis the movement of molecules from an area of high concentration to an area of lower concentration or movement of molecules from an area of low concentration to an area of higher concentration?
Osmosis is the movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane, in order to equalize the concentration on both sides.
What does osmosis do?
The random movement of water molecules through a partially permeable membrane from a higher concentration to a lower concentration.
What determines the direction of net movement across a cellmembrane?
The direction of net movement across a cell membrane is determined by the concentration gradient of a substance, with molecules moving from an area of high concentration to an area of low concentration. Additionally, the permeability of the membrane to the specific molecules also influences their movement. External factors such as temperature and pressure can also impact the direction of movement across the membrane.
How could you described the movement of water molecules during osmosis?
During osmosis, water molecules move from an area of low solute concentration to an area of high solute concentration through a selectively permeable membrane. This movement occurs to equalize the concentration of solutes on both sides of the membrane. The movement of water molecules continues until the concentration of solutes is balanced on both sides.
What is the difference between diffusion and facilitated diffusion in terms of the movement of molecules across a cell membrane?
Diffusion is the movement of molecules across a cell membrane from an area of high concentration to low concentration without the need for a protein. Facilitated diffusion also moves molecules from high to low concentration, but requires a specific protein to help them pass through the membrane.
Differentiate between osmosis and diffusion?
Osmosis is the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration, without the need for a membrane. Osmosis specifically involves water molecules, whereas diffusion can occur with various types of molecules.
What does osmosis require?
Osmosis requires a semipermeable membrane, such as a cell membrane, that allows water molecules to pass through while blocking the passage of solute molecules. It also requires a concentration gradient, with higher concentrations of solute on one side of the membrane compared to the other, to drive the movement of water molecules.
