Osmosis Aim: To determine the concentration of cell sap in a potato cell. Osmosis is the movement of water through a semi-permeable membrane. It starts from a weak solution and becomes a more stronger solution until the concentrations on both sides are equal. To investigate the range of solutions needed to find the point at which the surrounding solution is the same as the cell sap in the vacuole.
Premium Potato Semipermeable membrane Concentration
Topic: Osmosis Materials: Potato cylinders‚ 20 percent sodium chloride solution‚ three test-tubes‚ test-tube rack‚ scalpel blade‚ Gel ink pen‚ syringe-10cm^3‚ Plastic ruler with mm‚ tile‚ forceps filter paper‚ Masking tape. Method: 1) Three test-tubes‚ A‚ B and C were labeled and initials of experimenters were applied with the date: January 29‚ 2013. 2) A syringe was used to put 10cm^3 of water in tube A and 5cm^3 in tube B along with 5cm^ 20 percent sodium chloride solution and 10cm^3 20 percent
Premium Osmosis Cell wall Sodium chloride
. Potato crops were the best option for Irish people because potatoes provide lots of nutrients and the crops were easy to grow in Irish lands due to their adaptability in almost any surface. However‚ the dependency on potatoes started to be dangerous when a new potato disease commonly known as potato blight affected the crops year after year in the 1840’s. This disease caused the loss of great part of the crops until the end of the decade‚ but especially in the year 1847‚ called the black forty-seven
Premium Great Famine Phytophthora infestans Potato
Supa-Long French fries. At the time‚ we all agreed this was great potential business for Fyna Foods‚ but that it also posed a major problem for us – what to do with the excess potato left over after we supply Beefies with the extra-length fries. Unfortunately‚ we still haven’t been able to come up with a perfectly square potato! To dump this excess material would mean almost certainly making a loss on the Supa-Long Fires business. I am very pleased to be able to report to you today; however‚ that my
Premium Marketing Potato Marketing management
of salt concentration on potatoes. Scope In this investigation three square pieces of potato were placed into individual beakers containing different salt concentrations of 0%‚ 10% and 20% and observed for 120min. Hypothesis The theory behind this experiment was that the piece of potato placed into the 0% salt solution would increase in weight and size as it is a hypertonic solution. The pieces of potato placed into the 10% and 20% salt solution would theoretically decrease in weight and size
Premium Concentration Chemistry Potato
experiment is to test whether more water moves out of a potato when it is placed in a sweeter sucrose solution than a potato in a less sweet solution. The hypothesis of the experiment is that we expect more water to move out of the potato placed in the sweet solution than the potato placed in a less sweet solution. Independent variable: concentration of sucrose‚ concentrations: pure water H20‚ 0.1 M‚ 0.5M‚ 1M‚ 2M. Dependent variable: weight of potato sticks‚ original weight 0.7 grams. Controlled
Premium Potato Sugar Water
contain the ideas or writing of other individuals/authors. _Alexandra DeWitt_____________ __5/1/13____________ Author Date _10_________ Lab Section # Increasing Sucrose Concentrations Causes the Osmotic Concentrations of Disks of Potato Tubers to Decrease Abstract: Introduction: The biological membranes are composed of phospholipid bilayers‚ each phospholipid with hydrophilic heads and hydrophobic tails‚ and proteins. This arrangement of the proteins and lipids produces a selectively
Premium Concentration Osmosis Chemistry
But the main methods of traditional Belarusian cuisine are carefully kept by the people. Common in Belarusian cuisine were dishes from potato which is called among people "the second bread". The Belarusians bring fame to their beloved potato in their verses‚ songs‚ dances. There are special potato cafes in the country where you can try various potato dishes. Potato is included into many salads‚ it is served together with mushrooms‚ meat; different pirazhki (patties) and baked puddings are made from
Premium Pork Cooking Nutrition
* Potato * Vegetable Glycerine * White Vinegar * Food Colouring * Baking Soda * Water * Potato Peeler * Knife * Blender II. Objectives: a. To be able to make a more biodegradable plastic bag using potatoes. b. To apply the value of patience and excellence while performing the project and; c. To find out if potato starch can be a potential replacement for petroleum based plastic. III. Procedures: 1. Wash‚ peel‚ and dice the potato. Then
Premium Starch Potato Taro
the Irish and the impact that the potato had on their culture. The author will outline the stages of development from before the introduction of the potato to the acceptance of it as a winter vegetable. The author will also describe what effects the great famine had on Irish cuisine. The article will discuss the varieties of food‚ including the potato‚ eaten throughout the years‚ the methods of production at different levels of society‚ and a number of Irish potato dishes including boxty‚ champ‚ and
Premium Ireland Potato