0
What else can I help you with?
Can osmosis occur in the absence of menbrane?
Osmosis cannot occur without a membrane. It is a process where solvent molecules move across a selectively permeable membrane from a region of lower solute concentration to a region of higher solute concentration. The membrane is necessary to allow only the solvent molecules to pass through and equalize the solute concentration on both sides.
Can osmosis and diffusion can both occur at the same time through a dialysis membrane?
Yes, osmosis and diffusion can occur simultaneously through a dialysis membrane. Osmosis involves the movement of water molecules across a semi-permeable membrane, while diffusion involves the movement of solute molecules. Both processes can occur independently of each other through a dialysis membrane when there is a concentration gradient present.
What is meant by passive transport of material across a membrane?
"Passive" mean that it does not require energy, therefore the passive transport of material across the membrane means that it can transport the material (cells or whatever) without the function of energy across the membrane.
Substances that move across a cell membrane without using energy?
Passive transport is the movement of substances across a cell membrane without the use of energy. This process includes simple diffusion, facilitated diffusion, and osmosis. These mechanisms rely on the concentration gradient to drive the movement of molecules.
What is the difference between diffusion and facilitated diffusion in terms of the movement of molecules across a cell membrane?
Diffusion is the movement of molecules across a cell membrane from an area of high concentration to low concentration without the need for a protein. Facilitated diffusion also moves molecules from high to low concentration, but requires a specific protein to help them pass through the membrane.
Where diffusion occur?
Diffusion occurs on the cell membrane.
Can diffusion occur without a membrane?
Yes, diffusion can occur without a membrane. It is the process by which molecules move from an area of higher concentration to an area of lower concentration, driven by their kinetic energy. This can happen in any medium, such as gases or liquids, as long as there is a concentration gradient. Membranes can facilitate or regulate diffusion, but they are not a prerequisite for the process to take place.
Can diffusion occur through a nonliving membrane?
Yes, it can.
Can osmosis occur in the absence of menbrane?
Osmosis cannot occur without a membrane. It is a process where solvent molecules move across a selectively permeable membrane from a region of lower solute concentration to a region of higher solute concentration. The membrane is necessary to allow only the solvent molecules to pass through and equalize the solute concentration on both sides.
Where in the membrane does facilitated diffusion occur?
Diffusion will most likely to occur where there is a high concentration of gas or water then the particles distibute evenly to the area of low concentration. for example if you could smell a turkey cooking in the oven from upstairs without anyone telling you.
Can diffusion occur without a membrane present?
Yes, diffusion can occur without a membrane present. It is the process by which molecules move from an area of higher concentration to an area of lower concentration, driven by the concentration gradient. This can happen in gases and liquids, where molecules intermingle freely without the need for a barrier. Examples include the spread of perfume in a room or the mixing of food coloring in water.
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 is required for diffusion to occur?
A concentration gradient and a (semi-)permeable membrane.
Which involves a membrane - diffusion or osmosis?
Osmosis involves a membrane. It is the movement of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration. Diffusion, on the other hand, is the movement of particles from an area of high concentration to an area of low concentration, and it can occur with or without a membrane.
Can osmosis and diffusion can both occur at the same time through a dialysis membrane?
Yes, osmosis and diffusion can occur simultaneously through a dialysis membrane. Osmosis involves the movement of water molecules across a semi-permeable membrane, while diffusion involves the movement of solute molecules. Both processes can occur independently of each other through a dialysis membrane when there is a concentration gradient present.
What is essential for diffusion?
A- A Concentration Gradient B- A Selectively Permeable Membrane C- A Source of Energy D- A Protein The Answer Is (A) Diffusion can occur without a semipermeable membrane, as diffusion is simply movement of a substance from high to low concentration. A source of energy is needed only for active transport. Proteins are needed if the the particles transported are too big to pass the semipermeable membrane.
What part of an animal cell allows diffusion and osmsis occur?
the cell membrane
