active transport
Diffusion is the movement of molecules or partocles from an area of high concentration to an area of lower concentration, and Facilitated diffusion is when substances difuse across cell membranes more rapidly than you might expect.
In passive transport, particles move across a membrane from an area of higher concentration to an area of lower concentration without the input of energy. This movement is driven by the concentration gradient and does not require the use of transport proteins. Examples include diffusion and osmosis.
A- A Concentration Gradient B- A Selectively Permeable Membrane C- A Source of Energy D- A Protein The Answer Is (A) Diffusion can occur without a semipermeable membrane, as diffusion is simply movement of a substance from high to low concentration. A source of energy is needed only for active transport. Proteins are needed if the the particles transported are too big to pass the semipermeable membrane.
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.
No, diffusion does not require help from vesicles. Diffusion is the movement of particles from an area of high concentration to an area of low concentration, driven by concentration gradients. Vesicles, on the other hand, are membrane-bound structures that transport materials within cells through processes like endocytosis and exocytosis.
... is called "facilitated diffusion".
Facilitated Diffusionosmosis & diffusion
Diffusion is the movement of particles from an area of high concentration to low concentration. Osmosis is the specific type of diffusion where water molecules move through a selectively permeable membrane. Facilitated diffusion involves the movement of specific molecules across a membrane with the help of transport proteins.
Diffusion is the movement of molecules or partocles from an area of high concentration to an area of lower concentration, and Facilitated diffusion is when substances difuse across cell membranes more rapidly than you might expect.
Small particles can cross the cell membrane through simple diffusion, facilitated diffusion, or active transport. In simple diffusion, particles move from an area of high concentration to low concentration without the need for energy. Facilitated diffusion involves the use of protein channels or carriers to aid in the movement of particles. Active transport requires energy and transport proteins to move particles against their concentration gradient.
In passive transport, particles move across a membrane from an area of higher concentration to an area of lower concentration without the input of energy. This movement is driven by the concentration gradient and does not require the use of transport proteins. Examples include diffusion and osmosis.
1. facilitative diffusion-transport proteins provide a pathway for certain molecules to pass 2. osmosis-the passive transport of water across a selectively permeable membrane 3. diffusion- the net movement of the particles of a substance from where they are more concentrated to where they are less concentrated. (out of a sophomore Biology book)... hope this helps <3
A- A Concentration Gradient B- A Selectively Permeable Membrane C- A Source of Energy D- A Protein The Answer Is (A) Diffusion can occur without a semipermeable membrane, as diffusion is simply movement of a substance from high to low concentration. A source of energy is needed only for active transport. Proteins are needed if the the particles transported are too big to pass the semipermeable membrane.
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.
The process is called facilitated diffusion, as it relies on carrier proteins or channel proteins to aid in the movement of the substance across the membrane. It does not require the cell to use energy because the movement is still following the direction of the concentration gradient.
thanks to: Bobama 08. question: what transport supplies a cell with glucose? answer: The passive transport supplies a cell with glucose. A passive transport is the diffusion of particles through the proteins. The particles move from an area of high concentration to an area of low concentration. The cell does not need to use any energy to make this happen. Whereas, an active transport is the movement of particles through proteins against the normal direction of diffusion. Particles are moved from an area of low concentration to an area of high concentration. The cell must use energy to make this happen. This energy comes from the molecule ATP, which stores energy in a form that cells can use. Therefore, the passive cell transport supplies a cell with glucose.
No, diffusion does not require help from vesicles. Diffusion is the movement of particles from an area of high concentration to an area of low concentration, driven by concentration gradients. Vesicles, on the other hand, are membrane-bound structures that transport materials within cells through processes like endocytosis and exocytosis.