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against the gradient
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∙ 13y ago
Wiki User
∙ 13y agowith
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How can molecules move without diffusion or osmosis?
Apart from osmosis and diffusion the major mechanism for individual molecules to move is by active transport. Active transport is the movement of molecules against their concentration gradient (from a low to a high concentration) using energy supplied by the cell. It differs from diffusion which can only work down a concentration gradient ie from a high concentration to a low concentration. It also needs a source of energy supplied by a living cell, which is not needed for difusion. In cells, energy for active transport is supplied by respiration. See http://www.bbc.co.uk/schools/gcsebitesize/biology/cellprocesses/2diffusionandosmosisrev1.shtml
How is diffusion different from active transport?
active transport is different from diffusion. active transport has to do with the movement of chemical substance through a gradient of concentration. diffusion has to do with requiring the expenditure of energy
What types of transport moves molecules along a concentration gradient?
I'm not sure you're understanding the question you are asking. Molecules are the tiny building blocks, made up of atoms, that are used to create everything in our galaxy. Cells are a single living unit that work together to be a living thing. If you are interested in how parts of a cell move around or pass along material, you should look up how cells work or ask a more specific question.
Explain the difference between passive transport and active transport Give several types of each and explain how they work?
when molecule travels from a higher concentration to a lower concentration through a concentration gradient.It is known as passive transport. Active transport refers to when molecule travels from a region of lower concentration to a region of higher concentration against the concentration gradiet. Transport of protein is an active transport. Fit it in the sentence your way
How does osmosis work in the human body?
Osmosis works in the human body by transporting the water through the kidneys, blood and stomach. It occurs where ever there is water in the body.
Does simple diffusion work with or against the concentration gradient?
I think that it is something
How can molecules move without diffusion or osmosis?
Apart from osmosis and diffusion the major mechanism for individual molecules to move is by active transport. Active transport is the movement of molecules against their concentration gradient (from a low to a high concentration) using energy supplied by the cell. It differs from diffusion which can only work down a concentration gradient ie from a high concentration to a low concentration. It also needs a source of energy supplied by a living cell, which is not needed for difusion. In cells, energy for active transport is supplied by respiration. See http://www.bbc.co.uk/schools/gcsebitesize/biology/cellprocesses/2diffusionandosmosisrev1.shtml
How is diffusion different from active transport?
active transport is different from diffusion. active transport has to do with the movement of chemical substance through a gradient of concentration. diffusion has to do with requiring the expenditure of energy
Which way do molecules move during active transport?
hii friends?? hws life?? i think acitve transport moves molecules throught the speed of light and it needs blood and carbon dioxide to go through this process!!! Good luck people who need this answer bye!!! by: gabriel
Why is concentration gradient needed for diffusion to work?
They want to be a equilibrium (have the same concentration both inside and outside the semi-permeable membrane). Therefore they will move from a higher concentration to a lower in an effort to gain equilibrium. This does not require energy, unlike active transport.
What is transportation work?
"In transport work, ATP drives the active transport of solutes across a membrane against their concentration gradient by phosphorylating transport proteins". (Solutes are transported.) Save the animals!! :D
What type of work uses ATP to pump substances across membrane?
Various pumps use ATP to move substances across membranes. The pumps are often moving substance from a lower concentration to a higher. This movement is called "against the gradient" as movement usually moves from a higher concentration to a lower to even out the concentration. It takes energy to keep this. The pumps are mostly proteins.
How does investigating a factor that affects the movement of water and dissolved substances into and out of plant cells work?
osmosis it the movement of water particles going from a high concentration to a low concentration through a semi permeable membrane
How does osmosis work?
Osmosis is the diffusion across a semi-permeable membrane. It works by moving the water molecules to the place of low concentration until it reaches equilibrium. Osmosis is the movement of water molecules from a high concentrated area to a low concentrated area through a partially permeable membrane
How do proteins that are pumps differ from those that are channels?
They differ mainly by their shapes but they are an integral part of the membrane itself. The ones that are channels are open in the center. They use no energy.The ones that are pumps do not have a free opening. Also these pumps use energy to allow them to work. This use of energy (ATP) causes them to move objects against the concentration gradient.
What explains the increased concentration of Ca in the ER?
The increased concentration of Ca in the endoplasmic reticulum (ER) can be explained by the presence of specific Ca-ATPases pumps that actively transport Ca ions into the ER. These pumps work against the concentration gradient, using energy from ATP hydrolysis to pump Ca ions into the ER lumen, thereby increasing the concentration of Ca in the ER. This high calcium concentration in the ER is important for various cellular processes, such as protein folding and signaling.
What types of transport moves molecules along a concentration gradient?
I'm not sure you're understanding the question you are asking. Molecules are the tiny building blocks, made up of atoms, that are used to create everything in our galaxy. Cells are a single living unit that work together to be a living thing. If you are interested in how parts of a cell move around or pass along material, you should look up how cells work or ask a more specific question.
