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Apart from osmosis and diffusion the major mechanism for individual molecules to move is by active transport. Active transport is the movement of molecules against their concentration gradient (from a low to a high concentration) using energy supplied by the cell. It differs from diffusion which can only work down a concentration gradient ie from a high concentration to a low concentration. It also needs a source of energy supplied by a living cell, which is not needed for difusion. In cells, energy for active transport is supplied by respiration. See http://www.bbc.co.uk/schools/gcsebitesize/Biology/cellprocesses/2diffusionandosmosisrev1.shtml
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What are some molecules that move by diffusion and osmosis?
Gas molecules move by diffusion, and water molecules move by osmosis. Edit: Osmosis refers only to water molecules (H2O) while diffusion refers to all over molecules.
Molecules tend to move from an area where they are more concentrated to an area where they are less concentrated This process is called?
Diffusion
Diffusion and osmosis are forms of?
Both are types of passive transport because they require no energy (ATP) to move molecules.
What are molecules that tend to move form an area of high concentration?
Diffusion is the general term. Osmosis is the diffusion of water through a semi-permeable membrane.
What is the process in which molecules move in and out of cell?
The movement of things through the cell would be called diffusion. If it is water we are talking about then it is called osmosis. diffusion and osmosis are examples of inactive transport. Active transport involves specific proteins in the cell that pull material in the cell though the cell membrane.
What are some molecules that move by diffusion and osmosis?
Gas molecules move by diffusion, and water molecules move by osmosis. Edit: Osmosis refers only to water molecules (H2O) while diffusion refers to all over molecules.
Explain how osmosis differs from diffusion?
Osmosis differs from Diffusion because in osmosis only water moves, and during diffusion, small molecules move across the cell membrane.
In what ways do molecules move?
it moves by diffusion, osmosis and active transport
What make osmosis and diffusion the same?
Molecules travel across the cell membrane from a higher concentration to a lower concentration during both osmosis and diffusion. Diffusion is when molecules move across the cells' membrane from a higher concentration to a lower concentration. Osmosis is the diffusion of water.
What is diffusion of oxygen all about?
Diffusion is the main method by which molecules move across the cell membrane. during diffusion, molecules move from an area of higher concentration, to an area of lower concentration. What is Osmosis? Osmosis is the transport of water from an area of high concentration, to an area of low concentration water moves inside and inside of the cell membrane by osmosis. osmosis is the diffusion of water!
Molecules tend to move from an area where they are more concentrated to an area where they are less concentrated This process is called?
Diffusion
How are osmosis and diffusion related?
Osmosis runs on the principle of diffusion. The diffusion of water molecules through semipermeable membrane is called osmosis. We are getting most of our drinking water by RO process (i. e. reverse osmosis). Root hairs of plant absorb water by endo-osmosis.
Gas exchanges occur mainly by osmosis?
No, only water molecules move by osmosis. Gases are normally exchanged by the process of diffusion.
What two processes move large packets of molecules across the cell membrane?
osmosis and diffusion
What are three ways molecules move through a semipermeable membrane?
Diffusion, Osmosis and Active Transport
Distinguish between osmosis and diffusion?
The difference between Diffusion and Osmosis is by the process of them diffusing and the outcome such as an example of a sugar cube... In Diffusion Molecules move from high concentration just Osmosis although in the diffusion process of "Diffusion" it uses Kinetic energy and Concentration Gradient while "Osmosis" does not require cells to expand energy, in result Osmosis uses Passive Transport of Water.
What uses water osmosis or diffusion?
diffusion uses water to move molecules from a high concentration to a lower concentration but in osmosis it is the same but without water. One example of osmosis:people entering a train station(higher concentration) to inside the train(lower concentration).
