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As long as there is a concentration gradient. This is because diffusion occurs which is the net movement of substances from a region of high concentration to a region of low concentration.
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∙ 13y ago
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How can active transport differ from passive transport?
Active transport can occur against a diffusion gradient ("uphill flow).
Can the movement of matter occur without energy transfer?
Yes it can.
What must occur to electric current?
transfer/movement of electrons
How does strong wind occur?
Strong winds occur when there is a steep gradient in air pressure, i.e. if the difference in air pressure is large, the air moves from the area of higher pressure to the area of lower pressure at a considerable rate, or velocity.
Any magnetic properties occur?
at the atomic level because of the movement of electrons
Would the passive movement of substances occur if the interstitial solute concentration was the same as the filtrate solute concentration?
No. Solutes move down their concentration gradient, from areas of high concentration to areas of lower concentration.
What isThe difference in concentration between a region of high concentration and one of lower concentration?
Regarded as existing through Space, or Time, or from one end of an aqueous Solution to the 'other'; these differences are seen to occur across a GRADIENT. In other related circumstances we are talking about a Spectrum.
How diffusion will occur?
diffusion is occur when different concentration gradient is applied
If diffusion is going to occur there has to be what?
A difference in the concentration throughout space because diffusion doesn't just happen in a cell or aqueous solution by definition diffusion is just from high to low concentration
For diffusion to occur there must be?
For diffusion to occur there needs to be a concentration gradient. Which means that the concentrations on the two sides must be different. In diffusion the particles flow from high concentration to low concentration.
What is the similarities between osmosis and diffusion?
They both follow the concentration gradient i.e. require no energy for the process to occur. Diffusion is the movement of particles from an area of higher concentration to lower concentration. See Brownian motion. Osmosis is the movement of WATER particles across a semi-permeable membrane from an area of higher concentration to the lower concentration in the effort to reduce the solute concentration.
Difference between osmosis and diffusion?
Diffusion is the movement of substance (anything- solid ,liquid, gas, etc.) from a higher concentration gradient to a lower concentration gradient.Osmosis is the net movement of water molecules from higher concentration gradient to a lower concentration gradient through a partially permeable membraneSo the difference is that diffusion involves movement of any particles/ substance (e.g. solid, liquid, gas) while osmosis can only occur with water.Another one is that diffusion can occur with or without a membrane but osmosis can only occur with a membrane.Hope this helps. :)
What is the differece between passive and active transport?
Active transport is the movement of molecules across a membrane requiring energy to be expanded by the cell. ACTIVE TRANSPORT REQUIRES ENERGY. Passive transport is diffusion across a membrane requiring only random motion of molecules with no energy expanded by the cell. PASSIVE TRANSPORT REQUIRES NO ENERGY.
What is is required for diffusion to occur?
A concentration gradient and a (semi-)permeable membrane.
Where and when does diffusion occur?
Diffusion occurs when there is a concentration gradient i.e. a substance moves from higher to lower concentration.
What is the difference between diffusion and active transport?
Diffusion is the movement of molecules from areas of high concentration to areas of low concentration and active transport is the movement of molecules from an area of low concentration to an area of high concentration
Explain how the light reactions would be affected if there were no concentration gradient of protons across the thylakoid membrane?
The concentration gradient of protons is potential energy and is harnessed by an enzyme called ATP synthase. ATP synthase converts the potential energy of the proton concentration gradient into chemical energy stored in ATP (the process is called chemiosmosis). So without the protons, no ATP would be made, and therefore no light reaction would occur.
