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Facilitated diffusion across a biological membrane requires what?
Wiki User
∙ 11y ago
transport proteins
Wiki User
∙ 11y ago
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What structure is the statement below most likely referring to A large glucose molecule requires facilitated diffusion but an oxygen molecule does not?
A large glucose molecule requires facilitated diffusion but an oxygen molecule does not is a semipermeable membrane.
What movement of the substances through a cell membrane against a concentration gradient requires energy?
no because it is a form of passive transport. only active transport requires energy. facilitated diffusion just means that it cant be just absorbed through the membrane, it must go through specific chanels or be helped by transport proteins. but because facilitated diffusion moves from higher to lower concentrations, it requires no energy.
What requires no energy from the cell?
facilitated diffusion
What process requires energy from the cell?
facilitated diffusion
What happen during the facilitated diffusion?
Facilitated diffusion occurs against the osmotic potential/concentration gradient and requires energy at the expense of the ATP hydrolysis. There are several way in which this diffusion could occur in the cells. The first one being the ion exchangers. The ion exchangers are coupled with ATPase activity and they exchange ion(s) across the membrane. The most classical example of ion exchanger is the Na+/K+ ion exchanger and Ca+ ATPase. Other way of the facilitated diffusion in the ion channel. These could be voltage gated channel that open in response to the change in the membrane potential and the other being ligand gated channel that operate under the effect of ligand binding.
Facilitated diffusion required what?
Facilitated diffusion requires membrane proteins
Diffusion requires what?
Facilitated diffusion requires membrane proteins
What structure is the statement below most likely referring to A large glucose molecule requires facilitated diffusion but an oxygen molecule does not?
A large glucose molecule requires facilitated diffusion but an oxygen molecule does not is a semipermeable membrane.
What does facilitated diffusion requires?
Facilitated diffusion requires energy. This is because facilitated diffusion is the transfer of molecules from a lower concentration to a higher concentration.membrain pouch
What form of passive transport always requires membrane-bound proteins?
Facilitated diffusion
Molecules that permeate a plasma membrane by facilitated diffusion is what?
requires the aid of transport proteins
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
What movement of the substances through a cell membrane against a concentration gradient requires energy?
no because it is a form of passive transport. only active transport requires energy. facilitated diffusion just means that it cant be just absorbed through the membrane, it must go through specific chanels or be helped by transport proteins. but because facilitated diffusion moves from higher to lower concentrations, it requires no energy.
How simple diffusion can be distinguished from facilitated diffusion?
simple diffusion transports smaller molecules like oxygen and water while facilitated diffusion transports larger molecules like glucose and requires energy
Which structure is the statement below most likely referring to A large glucose molecule requires facilitated diffusion but an oxygen molecule does not.?
A semipermeable membrane is a large glucose molecule that requires facilitated diffusion but an oxygen molecule does not.
Does the facilitated diffusion not require the cell to use energy?
It does not require the use of the cells energy.
What requires the use of energy and help of transport proteins to move a molecule across a cell membrane?
Facilitated diffusion
