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How did Agre use simple osmosis experiment to prove the function of aquaporin?
Wiki User
∙ 13y ago
Agre tested his hypothesis in a simple experiment where he compared cells which contained the protein in question with cells which did not have it. When the cells were placed in a water solution, those that had the protein in their membranes absorbed water by osmosis and swelled up while those that lacked the protein were not affected at all. Agre also ran trials with artificial cells, termed liposomes, which are a type of soap bubble surrounded on the outside and the inside by water. He found that the liposomes became permeable to water if the
protein was planted in their membranes.
Wiki User
∙ 13y ago
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What is the function of simple cuboidal epithelium?
This type of epithelium is frequently found in glands, and the pancreas, where its function is secretion.
How is osmosis different from simple diffusion?
Osmosis is very similar to normal diffusion, but osmosis is only the movement of water through a "partially permeable membrane" where as simple diffusion is the movement of anything from an area of high concetrations to low, such as gas in a room.
The cell does not need to expand energy ATP in order to perform what?
simple diffusion and osmosis
Does osmosis require a cell to expend its own energy?
No. Osmosis is a passive method of transporting water. It moves water from a high concentration of water to a lower concentration of water. It is really simple diffusion but it is called osmosis because it involves water.
Significance of osmosis in unicellular organisms and plants?
Osmosis is important because some unicellular organisms are rather small and do not require intricate systems therefore it allows plants to easily take water from the soil by way of the roots making it simple and effective.
What experiment demonstrated the function of aquaporin?
The experiment that demonstrated the function of aquaporin was conducted by Peter Agre in 1992. He and his team discovered that the presence of aquaporin in red blood cells facilitated the rapid transport of water across cell membranes. This experiment provided the first evidence for the existence and role of aquaporin proteins in facilitating water transport across biological membranes.
What is the function of simple cuboidal epithelium?
This type of epithelium is frequently found in glands, and the pancreas, where its function is secretion.
How is osmosis different from simple diffusion?
Osmosis is very similar to normal diffusion, but osmosis is only the movement of water through a "partially permeable membrane" where as simple diffusion is the movement of anything from an area of high concetrations to low, such as gas in a room.
Do eggs dissolving in vinegar represent active transport or passive transport?
I assume you're referring to the simple experiment where the shell is softened using vinegar (acetic acid) and then placed in water. Water moves into the egg cells via osmosis (passive transport) til the cells rupture Short answer: Passive (Osmosis)
How is osmosis similar to simple diffusion?
Both affected by Concentrations?
Compare and contrast simple diffusion and osmosis?
osmosis moves through a membrane diffusion moves from higher concentration to lower concentration
What are the 3 types of diffusion?
simple diffusion, osmosis and facilitated diffusion.
What are the examples of simple diffusion?
Osmosis is one of the easiest-to-understand examples of diffusion. Past that, you will need to define 'simple'.
Why aren't osmosis and simple diffusion sufficient for the transport of all substances?
Osmosis and simple diffusion are not sufficient for the transport of all substances due to their nature. They only have the ability to transport substances which can pass through the cell membrane.
What is the diffusion of water across a semipermeable memberane?
Diffusion of water across a semipermeable membrane is a type of simple diffusion given the special name of osmosis.
How do you do a simple science experiment?
You have different kinds of methods for doing the a simple experiment in science. You need a prediction materials Observation Procedure and hypothesis for the experiment you do. 1st you make a prediction gather all the materials for your experiment and you start follow the experiment and last but not the least you have to check your hypothesis and prove it.........
Why aren't simple diffusion osmosis and filtration sufficient to supply the needs of the cell?
nothing
