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Is diffusion of molecules across the cell membrane the most complex type of active?
Diffusion of molecules across the cell membrane is actually a passive process, not active. Active transport, which requires energy in the form of ATP, is a more complex process as it moves molecules against their concentration gradient.
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
Which process requires no energy from the cell?
Passive transport. This process allows molecules to move across the cell membrane without the use of energy. It includes simple diffusion, facilitated diffusion, and osmosis.
What process requires energy from the cell?
facilitated diffusion
The process where a nonpolar molecule can just passively get across a membrane is called?
facilitated diffusion
What is the process that utilizes a carrier to move marerials across the plasma membrane in the direction of the concentration?
Diffusion is what carries materials across the plasma membrane. The diffusion cannot be moved across water.
What is falicitated diffusion?
Facilitated diffusion is a type of passive transport where specific molecules are transported across the cell membrane with the help of transport proteins. Unlike simple diffusion, facilitated diffusion requires the presence of these proteins to facilitate the movement of molecules across the membrane.
What is the process that utilizes a carrier to move materials across the plasma membrane in the direction of the concentration gradient that does not use ATP?
Active Transport
Does facilitated diffusion require a carrier or channel protein for the movement of molecules across the cell membrane?
Yes, facilitated diffusion requires a carrier or channel protein for the movement of molecules across the cell membrane.
Which process requires cellular energy to move molecules across the cell membrane from a region of lower concentrations to a region of higher concentration?
You are describing active diffusion.
What involves the movement of solutes across a selectively permeable membrane by the process of difussion?
Osmosis involves the movement of solutes across a selectively permeable membrane by the process of diffusion. In osmosis, water molecules move across the membrane from an area of low solute concentration to an area of high solute concentration in order to equalize the concentration on both sides of the membrane.
Facilitated diffusion across a biological membrane requires what?
Facilitated diffusion across a biological membrane requires the presence of specific protein channels or carriers to assist in the movement of molecules from an area of high concentration to an area of low concentration. The process does not require energy input from the cell and relies on the concentration gradient to drive the movement of molecules.
