Table of Contents
- 1 What is the movement of water from an area of high concentration to an area of low concentration?
- 2 What is the movement of molecules from an area of higher concentration to an area of lower concentration without energy?
- 3 Where is the net movement of water in a hypertonic solution?
- 4 What is the net movement of particles from a region of high concentration?
- 5 How do you describe the net movement of molecules?
- 6 What is the net movement of molecules?
- 7 How does water molecules move in hypertonic solution?
What is the movement of water from an area of high concentration to an area of low concentration?
Osmosis
Key terms
| Term | Meaning |
|---|---|
| Osmosis | The net movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration |
| Tonicity | The ability of an extracellular solution to make water move into or out of a cell by osmosis |
What is the movement of molecules from an area of higher concentration to an area of lower concentration without energy?
The above transport is called Diffusion and it is defined as ‘the movement of molecules from an area of higher concentration to lower concentration. it is a natural phenomenon and does not require energy.
What is meant by net movement?
The number of the molecules moving in the direction of the force minus the number of the molecules moving in other directions is the net movement of the molecules.
Where is the net movement of water in a hypertonic solution?
In a hypertonic solution, the net movement of water will be out of the body and into the solution. A cell placed into a hypertonic solution will shrivel and die by a process known as plasmolysis.
What is the net movement of particles from a region of high concentration?
Diffusion
Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration. This is due to the random movement of the molecules. The difference in the concentration of a substance between two areas is called the concentration gradient .
What is called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?
One example of passive transport is diffusion, when molecules move from an area of high concentration (large amount) to an area of low concentration (low amount). In simple diffusion, molecules that are small and uncharged can freely diffuse across a cell membrane. They simply flow through the cell membrane.
How do you describe the net movement of molecules?
Diffusion is defined as the net movement of molecules from an area of greater concentration to an area of lesser concentration. The molecules in a gas, a liquid or a solid are in constant motion due to their kinetic energy. Molecules are in constant movement and collide with each other.
What is the net movement of molecules?
Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration. This is due to the random movement of the molecules. The difference in the concentration of a substance between two areas is called the concentration gradient .
What is the net movement?
How does water molecules move in hypertonic solution?
If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, there is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.