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This process is called active transport. It requires energy in the form of ATP to move molecules against their concentration gradient. Examples include the sodium-potassium pump in animal cells and the proton pump in plant cells.

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Q: Movement of molecules across a membrane to an area of higher concentration?
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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.


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.


The movement of water across a membrane is trem?

The movement of water across a membrane is termed osmosis. This process involves the movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane, such as a cell membrane. Osmosis plays a crucial role in maintaining the balance of water and solutes within living organisms.


What is the movement across a membrane with the help of ATP?

Active transport is the movement of molecules across a membrane with the help of ATP, which provides the energy needed for the transport process. This allows substances to move against their concentration gradient, from an area of lower concentration to an area of higher concentration.


Which term describes the movement of water molecules into and out of the cell?

Osmosis is the movement of water particles from an area of high concentration to an area of low concentration, across a semi-permeable membrane.

Related questions

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.


What molecule moves across the membrane During osmosis?

Water molecules move across the membrane during osmosis. Osmosis is the movement of water molecules from an area of lower solute concentration to an area of higher solute concentration across a semi-permeable membrane.


What is the equilibrium of solute across a membrane?

The equilibrium of solute across a membrane is reached when the concentration of the solute is the same on both sides of the membrane. This means that the movement of the solute molecules is balanced, with an equal number of molecules moving in and out of the membrane. At equilibrium, there is no net movement of solute across the membrane.


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.


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.


Osmosis is defined as the movement of?

Osmosis is defined as the movement of water molecules across a selectively permeable membrane from an area of higher water concentration to an area of lower water concentration, in order to equalize the concentration of solute on both sides of the membrane.


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.


Occurs when water molecules diffuse through a membrane?

Osmosis. This is the movement of water molecules from an area of high water concentration to an area of low water concentration across a semi-permeable membrane.


What process do water molecules cross the cell membrane?

Water molecules cross the cell membrane through a process called osmosis, which is driven by the concentration gradient of water inside and outside the cell. Aquaporin proteins on the cell membrane facilitate the movement of water molecules into and out of the cell.


Which type of molecules cross the membrane in osmosis?

Water molecules cross the membrane during osmosis. Osmosis is the movement of water across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.


The movement of water across a membrane is trem?

The movement of water across a membrane is termed osmosis. This process involves the movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane, such as a cell membrane. Osmosis plays a crucial role in maintaining the balance of water and solutes within living organisms.


What type of molecule movement consist on one way diffusion across a semi permeable membrane?

Passive transport by simple diffusion involves the movement of molecules from an area of high concentration to an area of low concentration across a semi-permeable membrane. This process does not require energy input and continues until equilibrium is reached.