0
What else can I help you with?
What is the process in which molecules move across the cell membrane from a region of low concentration to a region of high concentration?
Active Transport - the process of moving particles across a cell membrane against a concentration gradient <- right one
Why does the cell give off water in a high salt solution?
The concentration of the water determines the rate of diffusion. A higher concentration of water will be transported to an area with a lower concentration, via the concentration gradient. In a high salt solution, the concentration of the water is higher in the cell, and so the water is diffused through the cells semi-permeable membrane into the high salt solution, to try to stabilise the concentration differential.
When would active transport be used by a cell?
Active transport is used when molecules are moved across a cell membrane against their concentration gradient, from a low to a high concentration.
How does osmosis explain the movement of water across cell membranes?
Osmosis is the movement of water from a solution of high concentration to a solution of lower concentration through a membrane. Water passes through the membrane, diluting the solution of higher concentration on the other side, until both solutions on either side of the membrane have equal concentrations.
What is the process of water diffusing across a what membrane?
Water diffuses across a cell membrane through a process called osmosis. Osmosis is the movement of water molecules from an area of high water concentration to an area of lower water concentration, driven by the concentration gradient of solutes across the membrane. This process helps maintain the cell's internal environment and balance the concentration of solutes inside and outside the cell.
How does the cell transport materials across the cell membrane?
a cell transports things across the cell membrane from areas of high concentration to ares of low concentration
How is the cell membrane involed in diffusion and osmosis?
The cell membrane is selectively permeable, allowing certain substances to pass through via diffusion or osmosis. In diffusion, molecules move from an area of high concentration to low concentration directly through the membrane. In osmosis, water moves through the membrane from an area of low solute concentration to an area of high solute concentration.
How does osmosis and diffusion work across a cell membrane?
During osmosis, water molecules move across a cell membrane from an area of low solute concentration to an area of high solute concentration in order to balance the concentration of solutes on both sides of the membrane. Diffusion involves the movement of molecules from an area of high concentration to an area of low concentration across the cell membrane until equilibrium is reached. Both processes are passive and do not require energy input from the cell.
What type of transport is used to move from a region of low concentration to a region of high concentration?
Without a cell membrane involved, this is just simple diffusion. If a cell membrane is involved, it is osmosis.
What is the process in which molecules move across the cell membrane from a region of low concentration to a region of high concentration?
Active Transport - the process of moving particles across a cell membrane against a concentration gradient <- right one
Is the process in which molecules move across a cell membrane from a region of low concentration to a region of high concentration.?
Active Transport - the process of moving particles across a cell membrane against a concentration gradient <- right one
What type of transport is used to move molecules from a region of low concentration to a region of high concentration?
Without a cell membrane involved, this is just simple diffusion. If a cell membrane is involved, it is osmosis.
During osmosis what passes through a cell membrane?
Water, from high to low concentration.
Why does the cell give off water in a high salt solution?
The concentration of the water determines the rate of diffusion. A higher concentration of water will be transported to an area with a lower concentration, via the concentration gradient. In a high salt solution, the concentration of the water is higher in the cell, and so the water is diffused through the cells semi-permeable membrane into the high salt solution, to try to stabilise the concentration differential.
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.
What is the process in which water diffuses across the cell membrane of an animal cell membrane of an animal cell from a region concentration to a region of low concentration?
Osmosisdiffusion deals with anything moving from high to low concentrations while osmosis is specifically water
What concentration gradients are established and maintained by the sodium-potassium exchange pump?
The sodium-potassium pump establishes and maintains concentration gradients of sodium and potassium ions across the cell membrane. It actively pumps sodium out of the cell and potassium into the cell, creating a higher concentration of sodium outside the cell and a higher concentration of potassium inside the cell. This helps maintain the cell's resting membrane potential and is essential for various cellular functions.
