The process for moving cellular wastes across the cell membrane is known as active transport. Active transport is a source of energy that allows molecules to move from low concentrations to high concentrations, and provides the needed boost to move the molecules uphill.
The process, in which energy stored in the form of a hydrogen ion gradient across a membrane is used to drive cellular work such as synthesis of ATP.
active transport
hahahah That's not even an answer. They act as barriers to the diffusion of certain substances. ---------------------------------------------------------------------------------- Better Answer: Well actually the membrane can facilitate diffusion (such as that of larger macromolecules) through channel proteins.
The process of moving materials across the cell membrane without the expenditure of energy is called passive transfer
Process in which water molecules moves across a membrane?
countertransport
The process, in which energy stored in the form of a hydrogen ion gradient across a membrane is used to drive cellular work such as synthesis of ATP.
active transport
Water diffusses across a semipermeable membrane
You are describing active diffusion.
hahahah That's not even an answer. They act as barriers to the diffusion of certain substances. ---------------------------------------------------------------------------------- Better Answer: Well actually the membrane can facilitate diffusion (such as that of larger macromolecules) through channel proteins.
This process is called osmosis.
The process of moving materials across the cell membrane without the expenditure of energy is called passive transfer
Osmosis.
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