If the inside and outside of a cell are both isotonic does water still move across the cell membrane?

There would be no net movement of water across the membrane because the amount of solute inside and outside of the membrane is equal.

isotonic is when the solute concentration inside a membrane is equal to the solute concentration outside that membrane.

An isotonic solution is one where osmotic pressures are equal -one common application is in microbiology when the concentration of a certain chemical is the same inside the cell as outside the cell, meaning an osmotic equilibrium has been reached across that cell membrane.

2 solutions cannot be isotonic when the cell membrane is non-permeable to the solute inside the cell. The solution outside the cell has to be fresh water 0% solute and 100% water

Diffusion across a cell membrane occurs when concentrations of a substance are higher either inside or outside the cell.

No diffusion takes place (no solute crosses membrane). The solution is isotonic and is in equilibrium

Concentration Gradient

Osmosis occurs when there is a difference in concentration of water inside the membrane and outside the membrane.

when a concentration of something, usually water, is the same inside and outside a cell, it is called an isotonic solution. When there is more inside the cell or membrane, but less outside, the solution is hypotonic. when there is more on the outside , it is known as hypertonic. however, it depends what you are describing

Hypertonic Solution Greater concentration of solute outside of cell than inside Water potential is higher; osmotic potential is lower Net movement of water from the cell to the solution across a semi-permeable membrane In excess, causes crenation in animal cells and plasmolysis in plant cells Hypotonic Solution Greater concentration of solute inside cell than outside Water potential is low (0 in distilled water); osmotic potential is higher Net movement of water into the cell from…

Generally, the inside of the cell is negative and the outside is positive. This is due to the selective permeability of the membrane.

Isotonic concentration is when the concentration of soletutes inside and outside of the cell are equal in concentration

Membrane proteins have a variety of functions. They relay signals between the cell's inside and outside environments. Transport proteins move the molecules across the membrane.

Isotonic (as far as cell biology goes) describes the solute concentration of the inside of a cell as compared to the environment outside the cell. When the concentration of solutes (ions, glucose, etc) inside equal the concentration on the outside, we call this isotonic. This is in contrast to hypotonic where the concentration of solutes is greater on the INSIDE of the cell, and hypertonic where the ion concentration is greater OUTSIDE the cell.

There would be no net movement of water/solutes. This means that movement across the membrane can occur, but the same amount will move inside as out (and vice versa).

Water Movement across a cell membrane is called Osmosis. And it is dependent on the concentration of ions on each side of the cell membrane. If the concentration is higher on the inside of the cell water rushes in to dilute the ion concentration and get it to equal the outside concentration of ions and this is called hypotonic. If the concentration is higher outside the cell water will rush out of the cell to…

The Na+ concentration is higher outside the cell compared to inside. The K+ concentration is higher inside the cell compared to outside

A membrane potential is basically the difference between the inside and outside of the cell. Ions are charged, and so will change the membrane potential (the difference between charges on the inside and outside) when they move. Please see the related link below which includes a diagram of how ions affect membrane potential.

Isotonic solution doesn't flow in any direction because the concentration is even on the outside and on the inside.

resting membrane potential

isotonic solution

The outside is slightly positive while the inside is slightly negative.

The cell wall is on the outside of the cell membrane

Osmosis across the cell membrane doesn't occur when the concentration gradients, and therefore the water potential inside and outside of the cell are the same

One Is Inside, And One Is Outside

The equilibrium distribution of a molecule across a membrane depends on concentration and membrane potential. A charged molecule will respond to both components of the electrochemical gradient and will distribute accordingly. K+ ions for example, are at equilibrium across the plasma membrane even though they are 30-fold more concentrated inside the cell. the difference in concentration is balanced by the membrane potential, which is more negative on the inside. The membrane potential opposes the movement…

An isotonic solution for human red blood cells is .85% sodium chloride. When the osmotic pressure is the same outside the cells and inside the cells, the solution is isotonic.

the concentration of the solute is lower inside the cell than outside it

An state of isotonicity means that the concentration of sugar outside the cell is the same as inside the cell. It is also known as osmotic equililbrium. Any sugar that crosses into the cell through the membrane is offset by an equal amount of sugar exiting the cell through that membrane.

Yes. The outside of the cell membrane is polar. The cell membrane is composed of a phospholipid bilayer. The inside of the cell membrane however is not polar.

A condition whereby the concetration of solutes outside the cell balances/equals that inside the cell

An state of isotonicity means that the concentration of sugar outside the cell is the same as inside the cell. It is also known as osmotic equililbrium. Any sugar that crosses into the cell through the membrane is offset by an equal amount of sugar exiting the cell through that membrane.

The cell membrane or plasma membrane or plasmalemma.

Because the voltage across a neural membrane is approximately -70mv, the inside of the membrane is negatively charged relative to the outside. Therefore, it is polarized; this polarization is maintained by retaining a low concentration of Na+ ion and a high concentration of K+ inside the cell (relative to the outside). Active transport helps this to occur, especially the Na+-K+ pump. THis was a question on my homework too. Hope i helped =).

If there is 99.1% water (0.9% NaCl) inside the cell and 99.5% water (0.5% NaCl) outside the cell, the water goes from where it is highest (99.1) to where it is lowest (99.5). This is the concept of osmosis, or the diffusion of water across a semi-permeable membrane. Diffusion always occurs from a high to a low concentration of molecules as they are moving due to their kinetic energy (energy of motion).

In an isotonic solution the shape of a cell remains unchanged. This is because the movement of water inside the cell equals the movement of water outside the cell.

When a neuron is resting then inside of the cell membrane is more negative than outside.

it´s selectively permeable because some substances can pass across the membrane and others cannot, and it´s always trying to keep the proper amount of water and nutrients inside and outside the cell.

An state of isotonicity means that the concentration of sugar outside the cell is the same as inside the cell. It is also known as osmotic equililbrium. Any sugar that crosses into the cell through the membrane is offset by an equal amount of sugar exiting the cell through that membrane.

An state of isotonicity means that the concentration of sugar outside the cell is the same as inside the cell. It is also known as osmotic equililbrium. Any sugar that crosses into the cell through the membrane is offset by an equal amount of sugar exiting the cell through that membrane.

An state of isotonicity means that the concentration of sugar outside the cell is the same as inside the cell. It is also known as osmotic equililbrium. Any sugar that crosses into the cell through the membrane is offset by an equal amount of sugar exiting the cell through that membrane.

Osmosis occurs, where water moves from a region of high solute concentration to a region of low solute concentration, passing through protein channels. This is a passive process.

Membrane potential

A Membrane is responsible for all the movements of particles inside or outside the cell.

It depends if the freshwater solution is hypertonic, hypotonic, or isotonic. Normally, freshwater is isotonic, so the cell will have no net water movement through its membrane and remain the same size as well as carry out normal functions. If the water is hypertonic, the water currently inside the cell will diffuse out through its membrane, forcing the cell to shrink and possibly die. If the water is hypotonic, water from the outside of the…

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.

he cell membrane forms a barrier between the inside of the cell and the outside, so that the chemical environments on the two sides can be different. The cell controls those differences so as to optimize the workings of the chemical machinery inside the cytoplasm. The cell also causes brief changes in the internal environment by moving stuff across the membrane in a controlled way. These changes are the ways in which cell respond to…

he cell membrane forms a barrier between the inside of the cell and the outside, so that the chemical environments on the two sides can be different. The cell controls those differences so as to optimize the workings of the chemical machinery inside the cytoplasm. The cell also causes brief changes in the internal environment by moving stuff across the membrane in a controlled way. These changes are the ways in which cell respond to…

Water molecules are small enough to move freely across the plasma membrane without the use of cellular energy. In osmosis, water molecules move across the cell membrane from where they are in higher concentration to where they are in lower concentration. The concentration difference between the inside and the outside of the cell determines the direction of osmosis.

also referred to as "Chemiosmotic Synthesis of ATP", hydrogen ions are removed from one side of the membrane to another. (inside to out), generating a proton gradient across the membrane. So we have a high concn of H+ ions outside the cell membrane. This causes the H+ ions in urgent need to get back inside with diffusion, thus protons move across membrane through special channels. Their passage drives the synthesis of ATP as well. btw…