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Which transport mechanism is responsible for the movement of oxygen and carbon dioxide during these processes?
Deborahaphillipsfb15...
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What is the Method of movement that requires the expenditure of ATP molecules is?
active transport
Are diffusion and osmosis active transport?
No - neither of these require any energy input. They are therefore examples of passive transport. They both involve movement from areas of high concentration to areas of low concentration.
Osmosis is what type of transport?
Diffusion. It's the movement of water through a permeable membrane. And it's always passive.
What is the random movement of molecules and ions down their concentration gradient called?
The random movement of molecules and ions down their concentration gradient (meaning from an area of high concentration to an area of low concentration) is called simple diffusion. Simple diffusion is related to the magnitude of driving force, permeability of the membrane, and surface area.
Does active transport require transport proteins?
Yes, active transport requires carrier proteins in order to function. These require ATP to carry things in and out of the cell.
What mechanism is responsible for the movement of water in this image?
convection
Which transport mechanism might be used to prevent the movement of sodium ions intovthe cell when it is at resting potential?
Passive Transport
Which process always involves the movement of materials from inside the cell to outisde the cell?
There are several processes that it could be. It could be active transport, passive transport, and also endocytosis.
What factors contribute to the convective processes responsible for plate movement?
Heat and Pressure.
Name two processes that are responsible for the movement of water?
Condensation and evaporation
What processes could result in the net movement of a substance into a cell if the substance is more concentrated in the cell than in the surroundings?
Active Transport!
What transport mechanism is used to prevent to movement of sodium ions into the cell when it is at resting potential?
Passive transport - i.e., "leaky conductance" provided by NLCN channels for example.
Is diffusion an active mechanism?
False
Cellular transport mechanism that depends upon transporters or carrier enzymes in the cell membrane is?
Protein is the cell that moves mechanism the depends on movement. This cell carries enzymes in the membrane.
What transport mechanism might be used to prevent the movement of sodium ions into the cell when it is at resting potential?
Passive transport - i.e., "leaky conductance" provided by NLCN channels for example.
Which process id directly responsible for the net movement of k and mg into the animal cell?
Active transport.
Are energy is required for a variety of life processes including?
Growth and reproduction, movement, and transport of certain materials across the cell membrane
