Tonicity- potato strip experiment, ph levels and cells, and fermentation when cells are placed in a hypertonic solution, water moves into the solution instead of. Thanks for sharing i am sure students now understand how to write a potato osmosis lab report . Diffusion, osmosis, and tonicity hypertonic (greater tension) conversely, if a cell is placed in a solution with a lower osmotic concentration (for. Add 10% sodium chloride solution to the test tube labeled hypertonic solution, totally immersing the potato strip add distilled water to the test tube labeled hypotonic solution, totally immersing the potato strip.
What happens when potato strip is placed in sodium chloride what happens to sweet potatoes that are placed in sodium chloride in a hypertonic solution of. Hypothesis i predict that the hypertonic solution will cause the water to leave the cell, shrinking it due to dehydration from the salt materials microscope microscope slide coverslip tap water saturated salt water onion procedure 1. The water potential of the potato would decrease because water moves from a high water potential region to a low potential region, and a dehydrated potato cell is hypertonic in comparison with the environment, forcing water to come into the cell. If the concentration of the sucrose solution is high, which is a hypertonic concentration, the length of potato strips and apple strips will decrease because the water molecules moved out from the potato and apple tissue to the sucrose solution.
We expect that the potato in hypertonic solution will lose mass, and that the potato in hypotonic solution will gain mass if a cell is in a hypertonic solution, it means that the environment outside of the cell has a high concentration of solutes, compared to inside the cell. The tube with 10% nacl has limpness water diffused out of the cell because outside the solution was hypertonic as compared to the potato strip. Osmosis (using potato strips) bio b12 - osmosis part ii: isotonic hypotonic & hypertonic solutions to demonstrate osmosis using potato elearning science experiment to. There are different environments created due to diffusion there are hypotonic, hypertonic, and isotonic environments for my individual inquiry, i used a potato. In a hypotonic solution potato strips gain water in a hypertonic solution from bio 102 at harold washington college, city colleges of chicago.
Osmosis in potato tissues vanessa tsao, lovette to, wang yeyun, zhang shenjia, alicia mak class 101, nanyang girls' high school, 2 linden drive, singapore 288683 abstract in this project, the relationship between the concentration of salt solution and the length of the potato strip that was immersed in it was investigated. Hypertonic is the last out of the three words the potato pieces were all placed into the test tube they were assigned after collecting the data so there would be. Using the terms osmosis and selection of either: hypotonic, isotonic or hypertonic, explain how you could revive a wilted flower 3 how would increasing the temperature of the hypertonic solution affect osmosis for potato strip. The middle cavities of the potato halves arescooped out using a spoon or knifeone of the cut potatoes is placed in boiling water for 5 minutes (this will destroy the cell membrane )the three prepared potatoes are placed in three petridishes and some water is poured in each of thedish. Asalready discussed previously, differences in surface area of each potato strip caused by imprecisecutting as well as the marks (lines and notches) imprinted would've affected the rate of osmosiswhile the concentration gradient between each potato strip is likely to differ as well.
The purpose of this experiment is to compare the tonicity between animal and plant cells for animal cells, we will be examining the tonicity in red blood cells, and for plant cells we will be examining the tonicity in potato strips. The effect of water concentration on the mass of potato tissue aim: the aim of this investigation is to discover the effect of water concentration on the mass of potato tissue, and also to investigate. As the potato cell was surrounded by a more concentrated solution this resulted in there being a lower water concentration within the potato cell which meant osmosis took place making it hypertonic as predicted my results were correct the potato pieces which were more water concentrated weighed more compared to the potato pieces which were in.
Berry list of biology experiments (peka) form 4 (part 3) hypertonic and isotonic solutions on animal cells length of potato strips / mass of potato strips. Describe how the potato cylinders changed in their turgidity identify which of the solutions were isotonic, hypertonic, and hypotonic in relation to the potato. If it was placed in a salty solution the potato strip would shrink because the outer solution has a high salt concentration so the water in the potato strip would get out thro ugh osmosis and. Osmosis and diffusion additional practice problems b hypertonic c hypotonic suppose you dropped a potato strip into a solution what could you have.
The potato strips that were covered with the cs solution were in a concentrated solution, and this causes for osmosis to take place, water from the potato strip diffues through the partially permeable membrane to create a balance between high and loswater potentials. Start studying biology 1 learn vocabulary, terms, and more with flashcards, games, and other study tools hypertonic in the potato strip experiment, which type.