Question
Calculation
The molar concentration of the potato cell is 0.3M
The solute potential can be find using the formula given below
Ψ = -iCRT where
i = the ionization
C = molar sucrose concentration at equilibrium
R = pressure constant (0.0831litres bar per mole
T = temperature K (273 + ℃)
Givens
i= (-1) (0.3M) (0.0831) (30 ℃ +273 = 328 ℃)
= -4.9527
i= -7.67
Water potential is a measure of the potential energy of water in a system, which determines the direction water will move; it depends on solute concentration and pressure. When water moves from an area of higher water potential (less solute) to an area of lower water potential (more solute), osmosis occurs, helping to balance the solute levels
To find the molarity of the potato cells, we look at when the line on the graph crosses the molarity line, which shows where the concentrations are equal. In this case, the line crosses at 0.3M
If a potato core is left in the open air, it will lose water to the environment and become dehydrated. As a result, the water potential of the potato cells will decrease because there is less water inside them compared to the outside.
If a plant cell has a lower water potential than its surrounding environment and pressure is zero, the cell is hypertonic relative to its surroundings, meaning it has a higher solute concentration. As a result, the cell will lose water to the environment.
The dialysis bag will gain mass because the water potential inside the bag (-6.25 bars) is lower (more negative) than the water potential outside the bag (-3.25 bars), which means water will move from the area of higher water potential (outside) to the area of lower water potential (inside). This movement of water into the bag causes it to swell and gain mass.
Using the information given above, write a brief and good discussion in simple English terms
The molar concentration of the potato cell is 0.3M
The solute potential can be find using the formula given below
Ψ = -iCRT where
i = the ionization
C = molar sucrose concentration at equilibrium
R = pressure constant (0.0831litres bar per mole
T = temperature K (273 + ℃)
Givens
i= (-1) (0.3M) (0.0831) (30 ℃ +273 = 328 ℃)
= -4.9527
i= -7.67
Water potential is a measure of the potential energy of water in a system, which determines the direction water will move; it depends on solute concentration and pressure. When water moves from an area of higher water potential (less solute) to an area of lower water potential (more solute), osmosis occurs, helping to balance the solute levels
To find the molarity of the potato cells, we look at when the line on the graph crosses the molarity line, which shows where the concentrations are equal. In this case, the line crosses at 0.3M
If a potato core is left in the open air, it will lose water to the environment and become dehydrated. As a result, the water potential of the potato cells will decrease because there is less water inside them compared to the outside.
If a plant cell has a lower water potential than its surrounding environment and pressure is zero, the cell is hypertonic relative to its surroundings, meaning it has a higher solute concentration. As a result, the cell will lose water to the environment.
The dialysis bag will gain mass because the water potential inside the bag (-6.25 bars) is lower (more negative) than the water potential outside the bag (-3.25 bars), which means water will move from the area of higher water potential (outside) to the area of lower water potential (inside). This movement of water into the bag causes it to swell and gain mass.
Using the information given above, write a brief and good discussion in simple English terms
Answers
GPT-4o mini
The water potential of a potato cell is influenced by its solute concentration, which we found to be 0.3M using the formula Ψ = -iCRT. Here, “i” is the ionization constant, “C” is the molar concentration, “R” is the pressure constant, and “T” is the temperature in Kelvin. Plugging in the values, we calculated the solute potential to be about -4.95 bars.
Water potential is essential because it determines how water moves within and outside of cells. Water tends to flow from areas of high water potential (where there is less solute) to areas of low water potential (where there is more solute). This movement helps to balance the concentrations of solutes inside and outside of cells.
When a potato core is placed in open air, it loses water to the atmosphere and becomes dehydrated. As the water leaves, the water potential inside the potato cells decreases since there’s less water compared to the surrounding environment. If the water potential inside the potato cells becomes lower than that of the outside environment, the cells are said to be hypertonic, having a higher solute concentration. This means that the potato cells will continue to lose water to the surroundings.
In another example, if we consider a dialysis bag filled with a solution having a water potential of -6.25 bars, this bag's water potential is lower (more negative) than the water potential of the outside environment, which is -3.25 bars. This difference means that water will move into the bag from the outside. Because of this water influx, the bag will gain mass and swell, demonstrating how water moves toward areas of lower water potential.
In summary, understanding water potential is key to studying how cells interact with their environment. It explains why cells lose or gain water, and how they maintain their functions based on their solute concentration.
Water potential is essential because it determines how water moves within and outside of cells. Water tends to flow from areas of high water potential (where there is less solute) to areas of low water potential (where there is more solute). This movement helps to balance the concentrations of solutes inside and outside of cells.
When a potato core is placed in open air, it loses water to the atmosphere and becomes dehydrated. As the water leaves, the water potential inside the potato cells decreases since there’s less water compared to the surrounding environment. If the water potential inside the potato cells becomes lower than that of the outside environment, the cells are said to be hypertonic, having a higher solute concentration. This means that the potato cells will continue to lose water to the surroundings.
In another example, if we consider a dialysis bag filled with a solution having a water potential of -6.25 bars, this bag's water potential is lower (more negative) than the water potential of the outside environment, which is -3.25 bars. This difference means that water will move into the bag from the outside. Because of this water influx, the bag will gain mass and swell, demonstrating how water moves toward areas of lower water potential.
In summary, understanding water potential is key to studying how cells interact with their environment. It explains why cells lose or gain water, and how they maintain their functions based on their solute concentration.