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Is it true that Movement of water across the plasma membrane depends on the relative concentration of solutes or dissolved substances?
Wiki User
∙ 11y ago
Yes it is true.
Wiki User
∙ 11y ago
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In which type of process do substances move down their concentration gradient across the membrane?
Active transport is a process that removes substances from a cell against the concentration gradient. The molecules move from low concentration to high concentration during this process.
In diffiusion movement of particles across a membrane is drven by what differences?
In diffusion, the movement of particles across a membrane is driven by an electrochemical gradient-the ion's concentration gradient and the membrane potential. Substances will passively diffuse down their concentration gradient to where they are less concentrated. Since the inside of a cell is negative compared to its outside, the membrane potential will drive the passive transport of cations into the cell and anions out of the cell due to electrostatic attractions.
What membrane components allow movement of non-polar substances across membrane?
Integral proteins allow movement of non-polar substances across membranes.
What does the cell membrane do to avoid hings going inside the cell?
Cell membrane is a Selectively Permeable Membrane so it does not allow all the substances to pass through it.It controls the movement of substances in and out of the substances.Unlike a cell membrane,the cell wall has large holes in it allowing the water and dissolved minerals to pass through hence cell wall is known as Freely Permeable Membrane.
What happens to a higher concentration of dissolved molecules on one side of a cell membrane during the process of diffusion?
the side of the cell membrane with the higher molecule concentration moves molecules to areas of lower concentration during diffusion until an equilibrium is reached between both sides of the membrane.
How does investigating a factor that affects the movement of water and dissolved substances into and out of plant cells work?
osmosis it the movement of water particles going from a high concentration to a low concentration through a semi permeable membrane
Why do dissolved particles on one side of a membrane result in the diffusion of water across the membrane?
When one area has a higher concentration than another area substances move from the area of high concentration to the area of low concentration.
How are the 3 passive transports different?
Simple diffusion - High concentration to low concentration, no energy required osmosis - Movement of water across a membrane, no energy required facilitated diffusion - Movement of substances, protein's are used to help move the substances across the membrane. There are very basic summaries of each.
What is the movement of chemical substances usually across the cell membrane againts a concentration gradient requires cells to energy?
active transport
In which type of process do substances move down their concentration gradient across the membrane?
Active transport is a process that removes substances from a cell against the concentration gradient. The molecules move from low concentration to high concentration during this process.
How does water move through?
Osmosis is the diffusion of a solvent (usually water molecules) through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration, or conversely from an area of higher water potential to an area of lower water potential.Water will tend to flow from a hypotonic solution (low concentration of dissolved substances) into a hypertonic solution (higher concentration of dissolved substances).Water will in essence push or thrust (Greek osmos,push,thrust) from a place of low concentration of water to that of a high concentration of water as it requires it. The membrane allows only water and some select substances to pass through.
How does water move through osmosis?
Osmosis is the diffusion of a solvent (usually water molecules) through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration, or conversely from an area of higher water potential to an area of lower water potential.Water will tend to flow from a hypotonic solution (low concentration of dissolved substances) into a hypertonic solution (higher concentration of dissolved substances).Water will in essence push or thrust (Greek osmos,push,thrust) from a place of low concentration of water to that of a high concentration of water as it requires it. The membrane allows only water and some select substances to pass through.
In diffiusion movement of particles across a membrane is drven by what differences?
In diffusion, the movement of particles across a membrane is driven by an electrochemical gradient-the ion's concentration gradient and the membrane potential. Substances will passively diffuse down their concentration gradient to where they are less concentrated. Since the inside of a cell is negative compared to its outside, the membrane potential will drive the passive transport of cations into the cell and anions out of the cell due to electrostatic attractions.
What membrane components allow movement of non-polar substances across membrane?
Integral proteins allow movement of non-polar substances across membranes.
What is the movement of water through a membrane from areas of high concentration to areas of low concentration?
Osmosis is the movement of water through a selectively permeable membrane from an area of high concentration of water to an area of low concentration of water.
What type of work uses ATP to pump substances across membrane?
Various pumps use ATP to move substances across membranes. The pumps are often moving substance from a lower concentration to a higher. This movement is called "against the gradient" as movement usually moves from a higher concentration to a lower to even out the concentration. It takes energy to keep this. The pumps are mostly proteins.
How does difference in concentration relate to movement of substances across the membrane?
the concentration gradient will help to bring stuff into the cell and to move stuff out. Osmosis likes to move with the concentration gradient. Moving with a concentration gradient is passive transport and moving against it is active transport
