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What is the similarity between simple diffusion and facilitated diffusion?

both need transport protein


What are the differences between diffusion facilitated diffusion and osmosis?

Diffusion is the movement of molecules from an area of high concentration to low concentration. Facilitated diffusion involves the use of transport proteins to move specific molecules across the cell membrane. Osmosis specifically refers to the movement of water molecules across a selectively permeable membrane.


What is the difference between facilitated diffusion with the help of a carrier molecule with the help of a transport protein?

Facilitated diffusion is a type of passive transport (does not require energy). It is called facilitated diffusion because it utilises the carrier protein to diffuse through it. Active transport requires energy to pump certain big molecules to cross over and this uses transport protein. Basically, the difference is just the usage of energy.


What is the difference between diffusion and facilitate diffusion?

The difference between diffusion and facilitated diffusion is that facilitated diffusion is that the molecules pass through special protein channels.


What are the differences between facilitated diffusion and active transport in terms of their mechanisms of transporting molecules across the cell membrane?

Facilitated diffusion is a passive process that uses carrier proteins to transport molecules across the cell membrane along their concentration gradient, while active transport is an energy-dependent process that uses ATP to move molecules against their concentration gradient through protein pumps.


What are the key differences between active transport and facilitated diffusion in terms of their mechanisms of movement across cell membranes?

Active transport requires energy input to move molecules against their concentration gradient, while facilitated diffusion does not require energy and relies on carrier proteins to help molecules move down their concentration gradient across the cell membrane.


Compare and contrast diffusion and facilitated diffusion?

They both require a trans membrane protein. Facilitated diffusion does not require energy whereas active transport requires energy. Facilitated diffusion takes place when there is a net movement of molecules from a region of high concentration to a region of low concentration whereas active transport takes place when there is a net movement of molecules from a region of low concentration to a region of high concentration.


What three methods allow exchange of molecules between cells and their surroundings?

The three methods are diffusion, facilitated diffusion, and active transport. Diffusion involves the movement of particles from an area of higher concentration to an area of lower concentration. Facilitated diffusion requires the assistance of transport proteins to move molecules across the cell membrane. Active transport uses energy to move molecules against their concentration gradient.


Is facilitated diffusion type of active transport?

Facilitated diffusion is passive transport as no energy is used, and a protein channel is all that's required. After that it is simple diffusion down a concentration gradient. Anything with the word diffusion in it is passive transport. Diffusion is just the principle of passive transport.


What are the similarities between active transport and facilitated diffusion in terms of their mechanisms of transporting molecules across the cell membrane?

Both active transport and facilitated diffusion are mechanisms that transport molecules across the cell membrane. They both involve the movement of molecules from an area of higher concentration to an area of lower concentration. However, active transport requires energy input from the cell to move molecules against their concentration gradient, while facilitated diffusion does not require energy and relies on carrier proteins to help molecules pass through the membrane.


Why the line-with-gaps model is not suitable to explain facilitated diffusion?

Facilitated diffusion is a carrier-mediated form of transport across a membrane. The line-with-gaps model doesn't show the carrier proteins that are in the cell membrane. These proteins are what help facilitated diffusion occur.


Cells take in oxygen by simple diffusion and glucose by facilitated diffusion Therefore oxygen uptake and glucose uptake will differ from each other in all respects except what?

Oxygen uptake and glucose uptake will differ in terms of the transport mechanisms involved, as oxygen is taken in by simple diffusion while glucose requires facilitated diffusion. Other factors such as energy requirements, concentration gradients, and specific transport proteins involved may also vary between the two processes.