0
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.
What else can I help you with?
What is one example of a substance using faciliated transport?
fatty acids membranes
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 requires energy to move molecules from an area with low concentration to an area of high concentration?
Active transport is needed to move molecules from an area of low concentration to an area of higher concentration against their concentration gradient. ATP is used as the power source.
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.
What requires energy diffusion fcilitated diffusion osmosis active transport?
Active transport requires energy, typically in the form of ATP, to move molecules across a cell membrane against their concentration gradient. Facilitated diffusion, while it still uses membrane proteins to transport molecules, does not require energy as it follows the concentration gradient. Osmosis is the movement of water across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration, also not requiring energy.
What is one example of a substance using faciliated transport?
fatty acids membranes
By what process are bacteria brought into a cell?
Bacteria can enter a cell through a process called phagocytosis, where the cell engulfs the bacteria using its cell membrane. Alternatively, some bacteria can invade cells by injecting proteins that manipulate the host cell machinery to gain entry.
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.
Does faciliated diffusion require energy?
Facilitated diffusion does not require energy because it relies on the use of carrier proteins to transport molecules across a cell membrane down their concentration gradient. These carrier proteins facilitate the movement of specific molecules such as glucose or ions without the need for ATP or energy input.
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
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.
How is faciliated transport similar to active transport?
Both facilitated transport and active transport require the substance that passes the membrane to pass through intermembrane proteins. However, unlike active transport, facilitated transport does not require ATP because it is not actively going against the concentration gradient.
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.
How do the proteins help move glucose and amino acid across the cell membranes?
protein is very important in the crossing of glucose and amino acids . those substance which does not pass through the cell membrane directly it is larger in size and have a charged particle can cross through the protein ,it is know as faciliated diffusion.
What type of transport requires energy to move molecules from an area with low concentration to an area of high concentration?
Active transport is needed to move molecules from an area of low concentration to an area of higher concentration against their concentration gradient. ATP is used as the power source.
What is the need for departmentation?
Departmentation is a very impoartant process. Koontz and O'Donnel defines departmentation as, " a process of dividing the large monolithic functional organization into smaller and flexible administrative units." The success of the enterprise can be understood on the basisi of these aspects including: 1. Developement of Managerial skills 2. Fixation of Responsibilities. 3. Manageable units establishments. 4. Budgeting faciliated.
What process permits absorption of glucose into cells?
The process that permits absorption of glucose into cells is called facilitated diffusion. Glucose is transported across cell membranes with the help of glucose transport proteins, such as GLUT-1 and GLUT-4. These proteins allow glucose to move down its concentration gradient and into the cells where it can be used for energy production.
