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well, if what i learned in science is right their are 2 types of diffusion. 1 is passive transport and the other is active transport. Passive transport is regular. It is when the molecules and atoms go across the cell's membrane through tiny holes in it. the cell membrane allows things it needs to enter, but does not allow waste or dangerous things that will harm the cell in.
What else can I help you with?
What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
How are diffusion and facilitated diffusion diffrent?
Diffusion directly passes through the cell membrane unaffected by the hydrophobic part of the membrane. Facilitated diffusion uses proteins to assist in the movement of molecules. Ions have trouble moving through the hydrophobic part of the membrane.
Does osmosis or facilitated diffusion require the presence of membrane channels?
Facilitated diffusion requires the presence of membrane channels or transporters to move molecules across the membrane. Osmosis, on the other hand, does not require membrane channels as it involves the passive movement of water molecules through the lipid bilayer of the membrane.
What two processes transport materials through the semi permeable membrane?
Two processes that transport materials through a semi-permeable membrane are passive diffusion, which involves the movement of molecules from an area of high concentration to an area of low concentration, and facilitated diffusion, which involves the transport of molecules across the membrane with the help of specific carrier proteins.
Facilitated diffusion moves large molecules through what?
Glucose and polypeptides.
What type of substances pass through the membrane by facilitated diffusion?
soluble materials which can diffuse passively .
What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
How are diffusion and facilitated diffusion diffrent?
Diffusion directly passes through the cell membrane unaffected by the hydrophobic part of the membrane. Facilitated diffusion uses proteins to assist in the movement of molecules. Ions have trouble moving through the hydrophobic part of the membrane.
What are the process in which materials move through a cell membrane?
diffusion and osmosis
How are diffusion and facilitated diffusion similar?
Substances enter a cell through the cell membrane
What are the types of movement through a membrane?
Osmosis, diffusion, facilitated diffusion, active transport
Does osmosis or facilitated diffusion require the presence of membrane channels?
Facilitated diffusion requires the presence of membrane channels or transporters to move molecules across the membrane. Osmosis, on the other hand, does not require membrane channels as it involves the passive movement of water molecules through the lipid bilayer of the membrane.
What types of transport mechanisms through the cell membrane are passive?
diffusion, facilitated diffusion, and osmosis
What is faciillitated diffusion?
Facilitated diffusion is diffusion that occurs not through the cell membrane directly but through protein channels within the cell membrane. They are often, although not always, substrate specific.
Identify at least five ways by which a substance may enter the cell?
A substance can enter a cell through diffusion, facilitated diffusion, active transport, endocytosis, or passive transport. Each of these processes has different mechanisms for moving substances across the cell membrane.
What two processes transport materials through the semi permeable membrane?
Two processes that transport materials through a semi-permeable membrane are passive diffusion, which involves the movement of molecules from an area of high concentration to an area of low concentration, and facilitated diffusion, which involves the transport of molecules across the membrane with the help of specific carrier proteins.
What is energy free movement of materials through a cell membrane?
Energy-free movement of materials through a cell membrane is called passive transport. This process includes diffusion, osmosis, and facilitated diffusion, where molecules move from an area of high concentration to an area of low concentration without the input of energy.
