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It is a solute that causes osmosis to occur. For instance, if a solution contains sucrose and the membrane is impermeable to sucrose,, water will move out of the cell and into the solution to dilute it. Hence the solution is hypertonic. Sucrose would be considered an osmotically active solution in this case because it induces osmosis of water across a membrane.
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∙ 14y agoyes
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What processes could result in the net movement of a substance into a cell if the substance is more concentrated in the cell than in the surroundings?
Active Transport!
What is the The uphill movement of a substance through a living cell membrane?
Active Transport
What molecules move with endocytosis and exocytosis as opposed to diffusion or active transport?
The difference is that Active transport engulfs the substance by using the cells membrane. Exocytosis engulfs the substance by engulfing it into a vesicle, then bring it into the cell, and Exocytosis releases he substance from a cell by fusion of a vesicle. :)
What does osmosis and active transport have in common?
Osmosis is the movement of water (solvent) over a semipermeable membrane - as long as there is a difference in concentrations of osmotically active substances (proteins for instance) on the two sides of the membrane, the water keeps moving to the side where concentration is higher, until there's no longer a difference. Water hence moves freely, passively, from a lower water concentration to a higher one. Active transport usually happens against an electrochemical gradient, i.e. energy (ATP) is used to pump a substance (solute) over a non-permeable membrane from lower to higher concentration. In this case it is the specific substance, not water, that moves over the membrane. The way of movement is different and the transported molecule is different in the two scenarios, but in both cases the molecule moves from a lower to a higher concentration with a membrane separating the two solutions.
What is the cellular movement of a substance that requires the use of energy?
Active Trasport, while diffusion does not.
If a substance is unable to diffuse across a membrane we say the membrane is?
osmotically active
What component of the molasses solution was osmotically active?
Sugar is the component of a molasses solution which is osmotically active.
What types of substances are stored by plants?
starch is one substance stored in plants because starch is not osmotically active
Are osmotically active substances simple diffusion or active transport?
simple diffusion.
Why does glucose and Sodium chloride behave osmotic ally different?
Glucose and sodium chloride behave differently osmotically because each formula unit of glucose behaves as a single osmotically active unit, but each formula unit of sodium chloride behaves as two osmotically active units: Each formula unit dissociates in solution into two ions, and the two ions act as osmotically independent units.
Give the factors that determine the turgidity of the cells?
There are many factors that determine the turgidity, or structure, of a cell. These factors include the amount of water present in the cell, a semi-permeable membrane of the cell, and formation of an osmotically active substance within the cell.
What happens when water is osmotically removed from a plant?
When water is osmotically removed from a plant bad things could happen. When the plant is dehydrated i could die.
What are active pharmaceutical ingredients?
Every drug has two components, one is the main substance which is the active pharmaceutical ingredient and the other is the inert substance, which can be the solvent in which the active ingredient is suspended.
How can you identify is the substance is optically active?
An Optically active substance is one in which the carbon is bonded to 4 different groups i.e a chiral compound
What processes could result in the net movement of a substance into a cell if the substance is more concentrated in the cell than in the surroundings?
Active Transport!
Explain active transport?
Active transport is the movement of a substance against its concentration energy.
How can a cell transport a substance from lower to higher concentration?
active transport
