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As the concentration of molecules outside a cell increases more molecules will enter the cell?
Wiki User
∙ 7y ago
the molecules are moving down their concentration gradient
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Wiki User
∙ 7y ago
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Is water found in the cell membrane?
The same way that air influences the shape of a balloon. When the cell is in the proper environment water enters the cell and it is the proper shape. When the solute concentration outside the cell is too high the water leaves the cell and it shrivels.
During the process of diffusion what is occurring?
Diffusion is a process that occurs when a substance such as water, molecules, etc enter and leave cells. The way that cell diffusion happens is by molecules moving from an area of high concentration to an area of low concentration. This usually occurs until both molecules have the same amount of the substance and it is distributed evenly.
What is cell diffusion?
One way that substances enter a cell is through diffusion. Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration. When the molecules are even throughout a space it is called equilibrium.
What are the molecules that help substances move through the cell membrane during active transport and facilitated diffusion?
In simple diffusion, small noncharged molecules or lipid soluble molecules pass between the phospholipids to enter or leave the cell, moving from areas of high concentration to areas of low concentration (they move down their concentration gradient). Oxygen and carbon dioxide and most lipids enter and leave cells by simple diffusion.
What kind of environments causes water to enter or leave the cell?
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 help dilute the concentration outside the cell and get the two concentrations to become equal and is called hypertonic. If the concentration is equal in both outside and inside the cell there will be no water movement and is called isotonic. Osmosis
Describe the conditions needed for molecules to enter a cell passively?
The molecules should be small and non-polar, also the concentration radient on the outside of the cell should be higher .
What if a cell has a lower concentration outside the cell?
There are two basic ways that individual molecules can enter (or leave) a cell.1. Diffusion. This is the movement of particles from a region of high concentration to a region of low concentration. So if the concentration of the molecule is higher outside the cell it can enter by diffusion. However diffusion can only take place down a concentration gradient ie from a high to a low concentration.2. Active transport. This is the movement of particles against their concentration gradient (ie from a low to a high concentration), using energy provided by the cell (ie ATP produced by respiration). So if a molecule is at a higher concentration inside the cell it can only be absorbed by active transport.
What effect does isotonic solution have on an egg?
Considering osmosis- If a hypertonic solution causes water molecules to leave an egg, and a hypotonic solution causes water molecules to enter a egg, an isotonic solution (where inside the egg and outside the egg the solute concentration is equal) water molecules would neither enter, nor leave a cell. I hope this helped :)
Is water found in the cell membrane?
The same way that air influences the shape of a balloon. When the cell is in the proper environment water enters the cell and it is the proper shape. When the solute concentration outside the cell is too high the water leaves the cell and it shrivels.
During the process of diffusion what is occurring?
Diffusion is a process that occurs when a substance such as water, molecules, etc enter and leave cells. The way that cell diffusion happens is by molecules moving from an area of high concentration to an area of low concentration. This usually occurs until both molecules have the same amount of the substance and it is distributed evenly.
What is cell diffusion?
One way that substances enter a cell is through diffusion. Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration. When the molecules are even throughout a space it is called equilibrium.
What are the molecules that help substances move through the cell membrane during active transport and facilitated diffusion?
In simple diffusion, small noncharged molecules or lipid soluble molecules pass between the phospholipids to enter or leave the cell, moving from areas of high concentration to areas of low concentration (they move down their concentration gradient). Oxygen and carbon dioxide and most lipids enter and leave cells by simple diffusion.
What kind of environments causes water to enter or leave the cell?
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 help dilute the concentration outside the cell and get the two concentrations to become equal and is called hypertonic. If the concentration is equal in both outside and inside the cell there will be no water movement and is called isotonic. Osmosis
Why is active transport of molecules necessary?
To move substances from low to high concentration.
Why should blood plasma have the same concentration as the blood cells?
Osmosis is the movement of water molecules from a region of high concentration to a region of low concentration through a selectively permeable membrane. If there is a high solute concentration outside the cell, water will leave body cells by osmosis - leading to plasmolysis (cell shrinking). If there is a high water concentration it will enter the cell by osmosis and the cell will burst.
How are oxygen and carbon dioxide exchanged in the Lings and though all cell membranes?
They enter/exit through a passive transport process called diffusion. It is caused by a concentration gradient within the two things being exchanged. The molecules diffuse across the membrane from the high concentration to the lower concentration side.
What happens to the circumference of an egg when you put it in water for a day?
The eggs circumference increases because the water molecules will enter the semi-permeable membrane through a process called diffusion.
