When the chips were put in distilled water they gain mass because the chips gain water from the surrounding solution due to osmosis . The process of osmosis causes a net flow of water across the semi permeable membrane, from a solution with a high water concentration to one with a lower water concentration.
In which concentration of salt solution should the chips be kept in?
So I think the 0.5 salt solution would be the best concentration to store the chips in because the solution will not make the chips absorb water nor loose much water because the solution would be isotonic which makes this the perfect concentration to store the chips in.
What happens when you put a potato in salt water?
When the potato cells interact with the salt water, the water in the cells moves outside the cells because the salt means that there is less water outside the cells than inside them. This causes the cells to shrivel up and become limp.
Why does the mass of a potato decrease in salt water?
Potatoes are made of cells, and their cell walls act as semipermeable membranes. ... If the salt concentration in the cup is higher than inside the potato cells, water moves out of the potato into the cup . This leads to shrinkage of the potato cells, which explains why the potato strips get smaller in length and diameter.
Why does the mass of a potato increase in sugar solution?
The water passes through the potato cell membrane (a partially permeable membrane) into the potato , making it swell and increase in mass. If there is more sugar in the surrounding solution than the potato sample, the reverse happens.
Why the chips in the 0.5 M sodium chloride solution lose mass?
A partially permeable membrane is a membrane with tiny holes in so small that only water molecules can pass through. When you place a potato chip in a salt or sugar solution, then if the potato has higher water potential some of the water will diffuse into the Sal solution which will cause the chip to lose weight.
Why did the students blot the potato before weighing it?
The movement of water molecules from the chip into the solution would culminate in the mass of the potato chip decreasing as the test goes on. ... Make sure to dry them with blotting paper before weighing as this could affect the results, making the potato chips appear to be heavier than they are.
What would happen to a person who drinks salt water?
Seawater contains salt. When humans drink seawater, their cells are thus taking in water and salt. ... Therefore, to get rid of all the excess salt taken in by drinking seawater, you have to urinate more water than you drank . Eventually, you die of dehydration even as you become thirstier.
Does temperature affect osmosis in potatoes?
If temperature increase then the osmosis rate will be faster because water molecules will move quicker crossing the membrane of potatoes.
What happens to a potato in pure water?
The first potato slice is placed in distilled water, which is a high concentration of almost pure water, definitely higher than that which the potato's cells contain. ... The water will diffuse into the cells of the potato , causing them to swell; the cells may be characterized as being “turgid”, or swollen.
What percentage of potato is salt?
The distilled water was hypotonic compared to the potato cells that contain approximately 2% salt .
Which solutions were hypotonic to the potato?
The potato sap has little solutes, and therefore it is hypotonic while the salt solution has more solutes. Therefore, it is hypertonic. Water molecules moved from a region of low concentration to a region of high concentration.
Which solution caused the potato cores to gain the most weight?
The distilled water solution was hypotonic to the potato cells, therefore, water was moving into the inside of the potato cells causing them to gain the most mass. The 15 % salt solution was the most hypertonic solution so the most water moved out of the potato cells causing them to lose the most mass.
Why did the potato increase in mass?
Mass – The increase in mass of the potato strip in water is due to the movement of water molecules into the plant cells via osmosis . Water molecules in the petri dish are at a higher concentration than water molelcules in the cytoplasm of cells and so move along their concentration gradient into the cells.
Can potatoes gain mass?
Potatoes. It's important to keep caloric needs in mind when eating for muscle growth and recovery. Potatoes are a perfect option for this. They're rich in carbohydrates , which provide a necessary energy source.
Does sugar affect osmosis?
As the concentration of sugar solution increases , change in mass of the potato decreases. That is the rate of osmosis decreases with the decrease in concentration of water molecules. Sugar molecules in the sucrose solution are too large to go through a semi-permeable membrane so water moves out during osmosis.
