that water has moved from outside the potato into the potato due to Osmosis‚ proving that the distilled water had a higher concentration of water‚ as water moves from a high concentration to a low concentration. I can also see that the glucose solution of 0.8M has a much lower water concentration then the cell sap in the potato tissue. I know this because the potato in the 0.8M solution decreased in weight by 0.5g. This means that due to Osmosis‚ water moved from inside the potato
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Purpose: To determine which chemical indicators that will indicate the presence of glucose‚ starch‚ lipid‚ and protein in various samples. Methods and Materials: For materials‚ please refer to p.18 in Biology 11 (replace Sudan IV with filter paper) For procedures‚ please refer to p.18-19 (except Part C) For Part C in Inv. 1A‚ please read the following procedures: 1.Label sample 1-6 on the filter paper 2.Add one drop of each sample corresponding to their number indicated on the filter paper
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structural components of the walls that surround plant cells. * The carbohydrates (saccharides/sugars) are divided into four chemical groups: monosaccharide‚ disaccharides‚ oligosaccharides and polysaccharides. * Monosaccharides include Glucose‚ Fructose‚ and Galactose etc. * Disaccharides include Sucrose‚ Maltose‚ and Lactose etc. * Polysaccharides include Starch‚ Glycogen‚ Cellulose and Chitin. * Aldehydes (–CHO) and ketones (= CO) are active groups or functional groups
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Experiment 2: Food Tests Objective * To study the presence of reducing sugars. * To study the presence of protein. Introduction In this experiment‚ glucose‚ maltose‚ lactose and sucrose are used for testing reducing and non-reducing sugars. Glucose is monosaccharide while maltose‚ lactose and sucrose are disaccharides of carbohydrates. Monosaccharaides are the monomers which make up all other carbohydrates and cannot be broken into smaller molecules by hydrolysis. Disaccharides are
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disease and cancer was virtually unknown in the early 1900’s. The "glycemic index" is a measure of how a given food affects blood-glucose levels‚ with each food being assigned a numbered rating. The lower the rating‚ the slower the absorption and digestion process‚ which provides a more gradual‚ healthier infusion of sugars into the bloodstream. On the other hand‚ a high rating means that blood-glucose levels are increased quickly‚ which stimulates the pancreas to secrete insulin to drop blood-sugar levels. These
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they must respire in order to survive. Respiration can be defined as the controlled release of energy from organic compounds to form adenosine triphosphate (ATP). The type of respiration that occurs is called aerobic respiration. It occurs when glucose and oxygen are present. It can be summarized by the equation: . Enzymes play a very significant part in respiration. During the different stages of respiration‚ enzymes that are often found in the matrix of the mitochondria are used to speed up reactions
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solutions (all at 10% concentration):1- starch‚ 2 – lactose‚ 3 – sucrose‚ 4 – glucose‚ 5 – fructose‚ 6 – distilled water ‚ were poured in six smith fermentation tubes. Cotton balls were plugged in the openings of the tubes and the tubes were kept upright and observed for 30 minutes. The mixture with the sucrose solution acquired the highest computed volume of gas evolved and the rate of CO2 evolution seconded by glucose and followed by fructose. This stated that the higher the amount of the CO2 evolved
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conditions of this test causes isomeric transformation of ketoses to aldoses‚ resulting in all monosaccharides and most disaccharides reducing the blue Cu2+ ion to cuprous oxide (Cu2O)‚ a brick red-orange precipitate. Examples of reducing sugar are glucose. Examples of non-reducing sugar are sucrose. Monosaccharide‚ which is smallest carbohydrates molecules‚ can be described by the number of carbons in the chain so that a monosaccharide with five carbons in a chain is a pentose and one with six carbons
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Streptococcus grows slowly. Cellular respiration is a process in which glucose is broken down to form an energy that can be used by the cell. There is aerobic respiration and there is anaerobic respiration. Aerobic respiration involves a series of chemical reactions in which oxygen is used to transform into carbon dioxide and H2O. This process generates energy carrying molecules called ATP. Anaerobic respiration does not use oxygen. Glucose is still broken down but instead of being broken down into carbon
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found in the mouth? (Points : 1) | Lactase Maltase Pancreatic amylase Salivary amylase | 3. (TCO 2) After a meal‚ which hormone is responsible for moving glucose into the body’s cells? (Points : 1) | Glucagon Estrogen CCK Insulin | 4. (TCO 1) What is the major monosaccharide found in the body? (Points : 1) | Glucose Fructose Galactose Glycogen | 5. (TCO 2) ________ is a technique employed by some endurance athletes to increase their storage of muscle glycogen. (Points
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