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What determines the direction in a substance diffuses across a membrane?
The concentration gradient determines the direction in which a substance diffuses across a membrane. The concentration gradient is a measure of how the concentration of a substance changes from one place to another.
Where does CO2 enter the chloroplast?
It diffuses through the membrane.
What is it called when water diffuses across a membrane?
osmosis i think
Why can oxygen diffuses across a cell membrane but Protein can not?
Its too large
When water diffuses through a selectively permeable membrane?
Diffusion without a concentration gradient; osmosis with.
What kind of particle ion molecule or molecular complex diffuses through a cellulose membrane?
i am not sure
What determines the direction of net movement across a cellmembrane?
The direction of net movement across a cell membrane is determined by the concentration gradient of a substance, with molecules moving from an area of high concentration to an area of low concentration. Additionally, the permeability of the membrane to the specific molecules also influences their movement. External factors such as temperature and pressure can also impact the direction of movement across the membrane.
What reaches the end of the axon when the neurotransmitter is released and diffuses to the muscle membrane to combine with receptors there?
nerve impulse
When the blank reaches the ends of the axon the neurotransmitter is released and diffuses to the muscle cell membrane?
Synaptic vesicle
What molecules diffuses through the lipid portion of the plasma membrane?
Any hydrophobic ones. eg. steroids
What structure does oxygen diffuses through but sodium ion may need active transport?
A semipermeable membrane
The part of a foreign substance that is inserted into a macrophage membrane?
The part of a foreign substance that is insertde into a macrophage membrane?
