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It means that in order to cross a barrier, for example a cell membrane, a substance must have a facilitator substance to make it permeable to the barrier.
For instance, glucose cannot enter cells unless insulin is present to facilitate the diffusion of glucose from blood to cell. Without the insulin, or with damaged insulin receptors on the cell membrane, the cell membrane remains impermeable to glucose and it cannot enter the cells, so it remains in the blood plasma. This is what causes Diabetes.
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∙ 12y ago
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By what process are bacteria brought into a cell?
Faciliated diffusion
What process permits absorption of glucose into cells?
jamaican bacon
How does faciliated diffusion differ from simple diffusion?
Facilitated diffusion needs some sort of help. Often it would be a protein. Simple diffusion doesn't. If you spill something smelly on the floor in the kitchen, you will smell it all through the house. It will spread by simple diffusion.
What type of transport is faciliated diffusion?
Neither of these require energy. Diffusion occurs naturally when a higher concentration of a substance exists on one side of a membrane than the other; molecules will enter into the area of lesser concentration until there is an equilibrium on both sides. Active transport requires the energy of the cell.
What is faciliated diffusion?
movement of specific molecules across cell membranes through protein channels
By what process are bacteria brought into a cell?
Faciliated diffusion
Does faciliated diffusion require energy?
Yes, faciliated diffusion is when a cell uses energy to maintain homeostasis, but regular diffusion is when homeostasis occurs without using energy.
What process permits absorption of glucose into cells?
jamaican bacon
What requires energy diffusion fcilitated diffusion osmosis active transport?
b and c active transpot and faciliated
What happens during the process of faciliated diffusion?
Facilitated diffusion is a passive transport process where specific proteins in the cell membrane help larger or charged molecules pass through. These proteins act as channels or carriers, allowing molecules to move down their concentration gradient without requiring energy input from the cell. This process is important for the movement of substances like glucose and ions across the cell membrane.
How does faciliated diffusion differ from simple diffusion?
Facilitated diffusion needs some sort of help. Often it would be a protein. Simple diffusion doesn't. If you spill something smelly on the floor in the kitchen, you will smell it all through the house. It will spread by simple diffusion.
How is faciliated transport similar to simple diffusion?
Facilitated and simple diffusion both transport solutes along a concentration gradient and neither processes require any ATP expenditure.
What is diffusion a natural movement of molecules from?
in the normal diffusion the substance move from the area of greater concentration to that of lower concentration. .... but i never know what do we mean be "faciliated" plz specify
What type of transport is faciliated diffusion?
Neither of these require energy. Diffusion occurs naturally when a higher concentration of a substance exists on one side of a membrane than the other; molecules will enter into the area of lesser concentration until there is an equilibrium on both sides. Active transport requires the energy of the cell.
What is faciliated diffusion?
movement of specific molecules across cell membranes through protein channels
How does the structure of the plasma membrane determines the route taken by vitamin C and vitamin D?
Vitamin C is water soluable so the only way it can be transported is by faciliated difficusion using a channel protein. Channel proteins allow polar, watersoluable substances and ions to pass across the cell membrane using faciliated diffusion. Vitamin D is lipid soluble therefore it can pass through using simple diffusion because the phospholipid bilayer lets it pass through down its concentration gradient.
Vitamin c is soluble in water and vitamin d is lipid soluble. how does the structure of the cell membrane determine the route taken by each vitamin?
Vitamin C is water soluable so the only way it can be transported is by faciliated difficusion using a channel protein. Channel proteins allow polar, watersoluable substances and ions to pass across the cell membrane using faciliated diffusion. Vitamin D is lipid soluble therefore it can pass through using simple diffusion because the phospholipid bilayer lets it pass through down its concentration gradient.
