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How do particles get in and out of the plasma membrane?

The movement is random, but there is a net movement from regions where there are lots of particles to ones where there are fewer particles.


What is the name for the movement of water across the plasma membrane?

The movement of water across the plasma membrane is called osmosis. It occurs in response to concentration differences of solutes on either side of the membrane.


In osmosis which membrane provides net movement of water without movement of NaCl?

A selectively permeable membrane allows water molecules to pass through but restricts the movement of larger solute particles like NaCl. In osmosis, water will move from a dilute solution to a concentrated solution through the membrane, causing a net movement of water without the movement of NaCl.


What is the definition of diffiusion in science terms?

Diffusion is the process where molecules or particles move from an area of higher concentration to an area of lower concentration, resulting in the equal distribution of the substances. It plays a crucial role in various biological and physical processes, such as the exchange of gases in the lungs and the movement of nutrients into cells.


What is the movement of particles diffusion osmosis or active transport?

Active transport is the movement of particles across a cell membrane against the concentration gradient with the help of energy. Diffusion is the movement of particles from an area of high concentration to an area of low concentration, and osmosis 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.


What motion of particles across a membrane requires energy?

Movement across a membrane that does require energy is called active transport.


What type of membrane is required for osmosis?

A selectively permeable membrane is required for osmosis. This membrane allows the passage of water molecules but restricts the movement of solute particles based on their size and charge.


What are the differences between diffusion and convection in terms of the movement of particles in a fluid medium?

Diffusion is the movement of particles from an area of high concentration to an area of low concentration, while convection involves the transfer of heat through the movement of the fluid itself. In diffusion, particles move randomly, while in convection, the fluid moves in a specific direction due to temperature differences.


Diffusion is the movement of a sustance?

Diffusion is the movement of particles from an area of high concentration to an area of low concentration. This process occurs naturally and does not require external energy to drive it. It is an important mechanism for the transport of substances across cell membranes.


What is differences between osmosis and diffussion?

Osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration. Diffusion is the movement of particles from an area of high concentration to an area of low concentration. While both processes involve the movement of molecules, osmosis specifically refers to the movement of water molecules.


The movement of relatively large particles across a plasma membrane via transport proteins?

... is called "facilitated diffusion".


What is the movement called when a cell does not use energy to move particles across the cell's membrane?

It is called passive diffusion.