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What does a carrier protein do in the process of transporting molecules across a cell membrane?
A carrier protein helps transport molecules across a cell membrane by binding to specific molecules and changing shape to move them across the membrane.
What kinds of molecules freely diffuse across a semipermeable membrane?
Water molecules freely diffuse across a semipermeable membrane.
What includes diffusion osmosis and facilitated diffusion?
These processes involve the movement of molecules across a semi-permeable membrane. Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration. Osmosis is the diffusion of water molecules across a selectively permeable membrane. Facilitated diffusion is the passive transport of molecules across a membrane with the help of specific proteins.
What is the process When proteins help molecules move across the membrane is called?
when proteins help molecules move across the membrane, it it called Facilitated Diffusion
When molecules are moving back and forth across the membrane will they ever stop moving?
Yes, in an isotonic solution the movement of molecules across the membrane will stop.
How do diffusion and osmosis share similarities in their mechanisms of movement across cell membranes?
Diffusion and osmosis are both passive processes that involve the movement of molecules across a cell membrane from an area of higher concentration to an area of lower concentration. In both processes, no energy is required for the movement of molecules.
How do carrier proteins facilitate the passive transport of molecules across a membrane?
Carrier proteins facilitate the passive transport of molecules across a membrane by binding to specific molecules on one side of the membrane and changing shape to transport the molecules across to the other side. This process does not require energy and is driven by the concentration gradient of the molecules.
What are the similarities between simple and facilitated diffusion in terms of their mechanisms of transport across the cell membrane?
Both simple and facilitated diffusion are passive processes that involve the movement of molecules across the cell membrane from an area of high concentration to an area of low concentration. They do not require energy input from the cell. In both processes, molecules move through specific channels or carrier proteins in the cell membrane to facilitate their transport.
Does facilitated diffusion require energy for the movement of molecules across the cell membrane?
No, facilitated diffusion does not require energy for the movement of molecules across the cell membrane.
Does facilitated diffusion require energy for the transportation of molecules across the cell membrane?
Facilitated diffusion does not require energy for the transportation of molecules across the cell membrane.
Does facilitated diffusion require energy to transport molecules across the cell membrane?
Facilitated diffusion does not require energy to transport molecules across the cell membrane.
Does passive transport require ATP for the movement of molecules across the cell membrane?
No, passive transport does not require ATP for the movement of molecules across the cell membrane.
