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The difference in substance concentration between the inside and outside of a cell drives diffusion, allowing essential molecules to move into the cell and waste products to move out. This process helps maintain cellular homeostasis by ensuring that the cell has the necessary resources and can effectively get rid of waste.
What else can I help you with?
When does diffusion occur across a cell membrane?
Diffusion across a cell membrane occurs when concentrations of a substance are higher either inside or outside the cell.
What is diffusion a natural movement of molecules from?
in the normal diffusion the substance move from the area of greater concentration to that of lower concentration. .... but i never know what do we mean be "faciliated" plz specify
When diffusion occurs in body cells and our lungs which way does it move?
The movement of molecules of a substance from its higher concentration to its lower concentration by their own kinetic energy is called diffusion. Thus abiding the principle of diffusion it occurs in our body cells and lungs both ways. In lungs the molecules of oxygen diffuse inside the blood and for carbon dioxide molecules outside.
What is diffusion and what increases the rate of diffusion?
diffusion is the transefer of said product from high to low concentration on the outside of the organism. e.g when in water skin wrinkles as their is water outside and water diffuses from your skin to the water outside as it has a higher concentration of molecules. You can increase diffusion by increasing the concentration of the other product on the outside. hope this helped.
How does a polar substance get across a cells plasma membrane without the expenditure of energy assuming it is more concentrated outside if the cell?
A polar substance can cross a cell's plasma membrane through facilitated diffusion, which does not require energy expenditure. In this process, specific transport proteins help the polar substance move down its concentration gradient from an area of higher concentration to an area of lower concentration. This movement occurs until equilibrium is reached.
What is a Diffusion is the movement of a substance?
diffusion is the movement of materials into cell membranes when the outside of the cell has a higher density than the inside
What happens in simple diffusion?
In simple diffusion, a substance passes through a membrane without any outside intermediary. The rate of diffusion is based on the force exerted..
When does diffusion occur across a cell membrane?
Diffusion across a cell membrane occurs when concentrations of a substance are higher either inside or outside the cell.
When is a substance most likely to diffuse into a cell?
If there is the concentration of substance inside the cell is lesser than outside and cell membrane is permeable to the substance.
While conducting an experiment you discover a certain substance passing out of a cell by diffusion what might you conclude about the concentration of this substance?
If a substance is passing out of a cell by diffusion, it suggests that the concentration of the substance is higher inside the cell than outside. This movement is driven by the substance's tendency to move from an area of higher concentration to an area of lower concentration to reach equilibrium.
Given that a nonpolar substance is more concentrated outside of a cell how does it get across a cell's plasma membrane without the expenditure of energy?
Osmosis and diffusion.
How does a polar substance get across a cells plasma membrane without the expendture of energy assuming it is more concentrated outside the cell?
Facilitated diffusion
Why does simple diffusion end?
Diffusion is complete when there ceases to be a concentration gradient. For example diffusion has ended if the concentration of a substance is equal on the inside and outside of a permeable membrane, this state is also referred to as dynamic equilibrium.
What is diffusion a natural movement of molecules from?
in the normal diffusion the substance move from the area of greater concentration to that of lower concentration. .... but i never know what do we mean be "faciliated" plz specify
How is diffusion important to cell processes such as photosynthesis?
Diffusion is the process by which small particles move from a place of high concentration to a place of lower concentration. By diffusion, small molecules like salts can go inside a cell from the outside. To keep itself alive, a Cell needs to take in many things from its outside. In Photosynthesis, gaseous Carbon Dioxide (CO2) enters the plant cell by diffusion. CO2 is very important in building food and making energy for the plants.
What role did diffusion play in the changes you observed?
Before diffusion there is a higher concentration of oxygen molecules outside the cell than inside the cell. After diffusion the concentration of oxygen molecules is the same outside and inside the cell.
When diffusion occurs in body cells and our lungs which way does it move?
The movement of molecules of a substance from its higher concentration to its lower concentration by their own kinetic energy is called diffusion. Thus abiding the principle of diffusion it occurs in our body cells and lungs both ways. In lungs the molecules of oxygen diffuse inside the blood and for carbon dioxide molecules outside.
