Background information: A hypertonic solution is a concentration that is higher than the solution. A Hypotonic solution is a concentration that is lower than the solution. An isotonic solution is a concentration and solution that is the same amount.
Hypothesis question: What will happen...
Determining the Osmolarity of a Potato
Students in Biology find it difficult to understand the concept of tonicity and
osmolarity in a real time situation. In this investigation, several concentrations of sucrose
were used to determine the osmolarity of a potato. It was found that the concentration...
levels. If the two solutions are of equal concentrations, they will be isotonic. If the concentrations are unequal, the solution with the higher concentration is hypertonic, and the solution with the lower concentration is hypotonic.
What is the solute concentration of potatoes? We can determine this...
solution is hypotonic, and water will move from the solution into the cell. If the surrounding solution has a higher concentration of dissolved molecules than the cell, the solution is hypertonic. In that case, water will move from the cell out into the surrounding solution. An isotonic solution is when...
Title: Potato Osmosis
Abstract: In this experiment was designed to study the effect of a concentrated solution applied to white and sweet potatoes. The solution’s impact among the potatoes were to be either hypertonic, hypotonic, or isotonic. The potatoes were first cut into fries with a fry cutter...
Potato Osmolarity Lab
The purpose of the lab is to discover the osmolarity of the potato tissue.
Osmolarity is a concept similar to concentration, except it is the total number of solute particles per liter. In this lab we can show osmolarity...
The aim is to find the concentration (mole/dm3 (M)) of solute in a potato cell by using the process of osmosis and different concentrations of sucrose solution.
Osmosis is diffusion of water across a partially permeable membrane. It moves from a solution with less solute...
is very necessary
doesn't require energy
oxygen and water gets into cell
hypertonic - concentrated concentration (has everything)
hypotonic - sad version of hypertonic
isotonic - when concentration is same on both sides
channel proteins allow passage that allows water to...
plant (World Book, 1997). This can be shown by an experiment with potato and glucose/salt solution. The experiment requires putting a piece (or more) of potatoes into glucose or salt solution to see the result of osmosis (a hypertonic type of solution is mostly used as it would give the most prominent...
Introduction Now, the goal of this lab was to find the osmotic potential of the potato cells. Each of the five solutions can either be hypotonic, hypertonic, or isotonic to the potato cell. If a solution is hypotonic, then water will flow into the cells causing the cells to expand and theturgor pressure...
Title: The effect of salt concentration on osmosis in potato.
1. The purpose of doing this lab is to observe the effects of various solute concentrations on osmosis in a potato.
2. During osmosis, water moves from the side of the membrane where they...
dissolving (water). There are 3 types of solutions; 1. Hypotonic Solution, 2. Hypertonic Solution, 3. Isotonic Solution. With a Hypotonic (low) solution the cell will gain water, therefore it will expand and could burst (lyse). However with a Hypertonic (high) Solution the cell will lose water, therefore...
EXERCISE 1C: Determining the Water Potential of Potato Cells
Introduction: Water potential was defined above as an expression of the tendency of water to diffuse from one region to another. Water potential is a numerical value that must be determined for a given temperature and pressure. In this exercise...
than raw potato." I will find this out using osmosis.
We already know that the average concentration of dissolved sugar in turnip is 0.62M. We found this from a previous class investigation. Using Osmosis, which we were taught last year in school, we can find out if potato contains...
lab, if the mass of potato is decreased, the solution is hypotonic; if the mass of potato is decreased, the solution is hypertonic. If the mass stays the same as initial mass, the solution is isotonic.
2. Since the concentration of 0.1 has a change in mass of 0, 0.1 is istonic. Potato cytoplasm and the...
Lab Topic: Movement of Materials Across the Cell Membrane—Potato Tuber Cells
Osmosis is a form of diffusion in which water diffuses through a selectively permeable membrane from a region of high concentration to a region of lower concentration. This form of diffusion takes place when...
respect to osmosis, animal cells, which do not have cell walls, absorb water from a hypotonic solution (concentration of solute lower than that found inside the cell) and will swell until they burst. In a hypertonic solution (concentration of solute higher than that found inside the cell), the animal...
gradient in different ways. In a hypertonic solution there is a higher concentration of the solute than in the other solution. Therefore, when the cell is put into a hypertonic solution, the water diffuses out of the cell which causes the cell to shrivel. In a hypotonic solution, the solution has a low...
we refer to an isotonic solution, which means there is not net movement of water crossing the membrane in animal cell while plant cell will tend to flaccid. (Brooker et al., 2010) If instead, the concentration outside the cell is higher than inside; we call those solutions hypertonic and are not ideal...
The Effect of Salt Concentration on Osmosis in Potato Cells
We should first explain what Osmosis is. It’s a passage of water from a region of high water concentration through membrane to a region of low water. Semi membrane is a very thin layer of material, which allows some things to pass through them...
Aim: To investigate how concentration effects osmosis on potato
I have been asked to investigate the effect of osmosis on potato chips. Osmosis is the diffusion of water from a lower concentration of solute to a higher concentration of solute, through a membrane...
Potato in Salt Solution
Plants in the soil have their roots in a dilute solution of mineral ions. When they are suddenly flooded with seawater, concentration of which is 0.3 molar Sodium Chloride, they are observed to wilt and become flaccid.
The aim of this experiment is to investigate...
Osmosis in Potato Tubers
When a plant cell is bathed in a solution of the same concentration (isotonic) as its intracellular environment, its mass and volume remain the same. This is because water enters and leaves the cells at the same rate. There is no net loss or...
cell is in an environment that is hypertonic, the free water concentration is greater inside the cell while the solute concentration is higher outside. The net diffusion of water is out of the cell. In the case of a cell lacking a cell wall (animal cell), a hypertonic environment causes the cell to shrink...
of the experiment:
Finding the water potential of potato.
Independent variable: concentration of the solution.
Dependent variable: percentage changed in weight of the potato strips.
Controlled variable: size of the potato strips, it can be controlled by cutting the length...
Explain what would happen to a freshwater unicellular organism if it were suddenly released into a saltwater environment. Use the terms isotonic, hypotonic and hypertonic in the answer. (3 points)
What would happen if a marine organism were placed in freshwater? (3 points)
The student purchases...
other piece of potato to sugar solution.
4. put the last piece into pure water.
5. leave them for 180 minutes
Each piece in the solution reacted different. The sugar solution potato had the lowest mass , the boiled potato stay in the same mass and the potato that was in the...
How does the mass of a potato slice change when it is put into distilled water, tap water or salt water?
Background: In this lab we will find out how water with different concentrations affects the mass of a potato slice when the slice is soaked in the water. In this lab the effects of osmosis will...
Potato Cell Cytoplasm Composition
PURPOSE: To determine the concentration of salt in the cytoplasm of potato cells
HYPOTHESIS: Increase in salt concentration results in a hypotonic solution where the mass of the potato increases due to the movement of water into the cell. On the other hand, decrease...
water potential of potato and carrot tubers in a sucrose solution, of concentration 0.00 – 0.50Mol, over a 24 hour period
From our graph it can be seen that the concentration of sucrose solution is 0.18 M at 0% change in mass for the potato and 0.355 M at...