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Describe methods by which substances enter and leave cells that do not require cellular energy?
Wiki User
∙ 9y ago
Diffusion-movement of substances from a region of higher concentration to a region of lower concentration down a concentration gradient.
Osmosis (also similar to diffusion) - movement of water molecules from a region of higher water potential to a region of lower water potential down a water potential gradient:)
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoRandom thermal motion causes molecules to move around, without requiring any specific method of moving them. If there is more of some compound on one side of a membrane than there is on the other side, there will be what is known as osmotic pressure. Sheer random motion will tend to equalize such differences in concentration.
Wiki User
∙ 9y agoDiffusion is what leaves the cells. The cells has to have cellular energy.
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The cells of a redwood tree require oxygen for the process of?
Cellular Respiration
All cellular activities require what?
They all need to repodes
What parts of cellular respiration don't require oxygen?
Respiration by definition refers to oxygen exchange. However cellular metabolism which does not require oxygen is called glycolysis.
Where can one find a cellular phone directory?
If you are looking for a cellular phone directory, your best bet would be the National Cellular Directory. This is an opt in service, so they might not have the number you require.
What type of activities does not require cellular energy?
Only one, passive diffusion.
Describe methods by which substances enter and leave cells that require cellular energy?
Diffusion is the methods that leave cells. Diffusion also has to have cellular energy.
Why can't heat energy travel through space by conduction or convection?
Both of these methods require the presense of matter.Both of these methods require the presense of matter.Both of these methods require the presense of matter.Both of these methods require the presense of matter.
What is the movement of materials through a cell membrane?
Movement of substances into and out of cells include passive mechanisms that do not require cellular energy (diffusion, facilitated diffusion, osmosis, and filtration) and active mechanisms that use cellular energy (active transport, endocytosis,and exocytosis).
Does not require light?
cellular respiration
Does Alltell require a contract for their cellular service?
Alltell does not require a contract for their cellular service. You can find more information about different cellular services at heir stores or online wedsites.
The cells of a redwood tree require oxygen for the process of?
Cellular Respiration
Do plants require oxygen for cellular respiration?
yes they do
An energy releasing process that does not require oxygen is?
cellular
What is the cellular movement of a substance that does NOT require energy?
Passive transport
Does cellular division require energy?
yes, everythingrequires energy.
What is a energy - releasing process that does not require oxygen?
Cellular Respiration
All cellular activities require what?
They all need to repodes
