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Explain why gases flow through small hole?
Gases are able to flow through a small hole because of diffusion. This is the process by which the rapidly moving molecules move apart through the collision with other molecules.
What is the difference between facilitated diffusion and simple diffusion in terms of the mechanisms by which molecules move across a cell membrane?
Facilitated diffusion involves the movement of molecules across a cell membrane with the help of specific proteins, while simple diffusion does not require any proteins and relies on the molecules moving freely through the membrane.
What is random collision of diffusing molecules?
The random spreading of molecules is referred to as diffusion. Diffusion occurs due to the movement of particles in gases or liquids. An example of diffusion is putting a drop of red food coloring in a glass of water and observing how the water becomes red-colored.
What are factors on which rate of diffusion depends?
Diffusion depends on where the higher and lower concentrations of solutes are (molecules move from high to low concentration), what kind of membrane (if any) the molecules are moving through, and in many cases how large and charged the molecules are.
What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
What occur when the number of molecules of a substance is equal in two areas?
Any diffusion occur.
Diffusion is the movement of molecules from?
Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.
Is Diffusion made of small or large molecules?
Diffusion is not a substance. It is a physical process. Diffusion is the process where there is a movement of molecules from where they are abundant to where they are scarce. A more technical definition would be: Diffusion is a process in which molecules move from a region of higher concentration to a region of lower concentration.
What kind of molecules can move across the membrane For simple diffusion?
Passive transport is dependent on the permeability of the cell membrane, which, in turn, is dependent on the organization and characteristics of the membrane lipids and proteins. The four main kinds of passive transport are diffusion, facilitated diffusion, filtration and osmosis.Simple diffusion is the unassisted passage of small, hydrophobic, nonpolar molecules.
How is facilitated diffusion different from regular diffusion in terms of the mechanism of transport?
Facilitated diffusion is different from regular diffusion because it involves the use of transport proteins to help molecules move across the cell membrane, while regular diffusion does not require any proteins and relies on the natural movement of molecules from an area of high concentration to low concentration.
A type of diffusion that uses carrier molecules but no energy?
diffusion
What substance cannot be moved into a cell by osmosis or diffusion?
Large molecules such as proteins cannot be moved into a cell by osmosis or diffusion due to their size and charge. These molecules require specialized transport mechanisms such as active transport to enter the cell.
