re-used over and over again. There are also different types of enzymes‚ namely‚ digestive‚ metabolic and food enzymes. An example of a digestive enzyme is Lactase. Also called lactase-phlorizin hydrolase‚ Lactase helps to break down lactose‚ a disaccharide‚ into the monosaccharaides glucose and galactose by hydrolysis. A lock and key diagram below shows how the substrate‚ lactose‚ reacts with the active site‚ lactase‚ to form products‚ glucose and galactose. The diagram below also outlines how enzymes
Premium Lactose intolerance Milk Enzyme
as dehydrating agent forming furfural derivatives which interact with alpha-naphthol librating a violet layered compound Test | Molisch test | Objective | A general test for all carbohydrates. Monosaccharides give a rapid positive test. Disaccharides and polysaccharides react slower. | Principle involved | Dehydration of the carbohydrate by concentrated sulfuric acid to produce an aldehyde | Reagent | H2SO4 | Positive results | a purple-black layer/violet ring in the compound | Compound
Premium Starch Glucose Carbohydrate
provide an example. What are the “building blocks” of each molecule? For example‚ protein = Amino Acid. 1. carbohydrates: organic molecule with a carbon/hydrogen/oxygen ratio of about 1:2:1‚ including sugars and starches. EX: monosaccharides‚ disaccharides‚ polysaccharides 2. Lipids:
Free Protein DNA Atom
Experiment #1: Carbohydrate Digestion • Tube 1 Digestion Lab – 3 ml water • Tube 2 – 3 ml 0.2% amylase • Tube 3 – 3 ml 0.2% amylase + 10 drops of 1.0M HCl • Tube 4 1 2 4 3 – 3 ml 0.2% amylase – place in hot water bath for 5 min Experiment #1: Carbohydrate Digestion • Add 5.0 ml starch solution to each tube • Incubate in 37°C bath for 1.5 hr • Divide contents of each tube evenly into 2 tubes – Lugol’s Test – Benedict’s Test Experiment #1: Carbohydrate
Free Enzyme Digestion Starch
IV. Carbohydrates – Sugars and their polymers (name often ends in –ose) a. Monosaccharides - one monomer 1. Usually multiples of CH2O 2. Aldose- Sugar with aldehyde 3. Ketose- Sugar with ketone 4. Glucose‚ fructose‚ galactose b. Disaccharides- Double sugar with 2 monomers joined together by a glycosidic linkage (covenant bond) 1. Maltose – 2 Glucose 2. Sucrose - Glucose & Fructose 3. Lactose - Glucose & Galctose c. Polysaccharides / Oligosaccharides – few sugars joined together
Premium Protein Amino acid DNA
Bio Study Guide EXAM 1 Chapter 1 Characteristics of living things (know the 7 characteristics) 1. Order 2. Regulation- controlling body temp 3. Contain DNA- evolution 4. Energy Processing – food 5. Response to the environment- adapting 6. Growth and development 7. Reproduction Classification of organisms (D.K.P.C.O.F.G.S) Domain‚ Kingdom‚ Phylum‚ Class‚ Order‚ Family‚ Genus‚ Species Prokaryotes vs. Eukaryotes (know differences) Prokaryotic cells: DO NOT have a nucleus but DOES
Premium Cell Protein DNA
Carbohydrates are divided into four groups: Monosaccharides - These are simple carbohydrates‚ also called simple sugars‚ which are made of one sugar. They are broken down quickly by the body and are the building blocks for complex carbohydrates. Disaccharides - These are also simple carbohydrates that consist of two chemically-linked monosaccarides. They come in the form of lactose‚ maltose and sucrose. Oligosaccharides - These are complex carbohydrates that consist of three to ten sugars. They are
Free DNA RNA
lengths. Certain carbohydrates are an important storage and transport form of energy in most organisms‚ including plants and animals. Carbohydrates are classified by their number of sugar units: monosaccharides (such as glucose and fructose)‚ disaccharides (such as sucrose and lactose)‚ and polysaccharides (such as starch‚ glycogen‚ and cellulose). B) Lipids Lipids are one class of aliphatic hydrocarbon-containing organic compounds essential for the structure and function of living cells. Lipids
Free DNA Protein Glucose
accessed 25th Feb 2013. Unknown. (Unknown). What are the different Polysaccharides?.Available: http://www.innovateus.net/science/what-are-different-polysaccharides. Last accessed 25th Feb 2013. Glenn & Susan Toole. (2008). Carbohydrates - disaccharides and polysaccharides; Starch‚ Glycogen and Cellulose. In: Nelson ThornesAQA AS Biology. Cheltenham: Nelson Thornes. 22‚ 156. J. France. (2005). Molecular difference between Alpha and Beta Glucose?. Available: http://www.thescienceforum.com/biol
Premium Polysaccharide Starch Cellulose
The Effect of Yeast on Different Fruit Juices | Researched by Kristyn S. 2001-02 | * PURPOSE * HYPOTHESIS * EXPERIMENT DESIGN * MATERIALS * PROCEDURES * RESULTS * CONCLUSION * RESEARCH REPORT * BIBLIOGRAPHY * ACKNOWLEDGEMENTS * ABOUT THE AUTHOR | PURPOSEThe purpose of this experiment was to determine the amount of fermentation of four different fruit juices after adding yeast. I became interested in this idea when I saw the fruit in my family’s refrigerator
Premium Yeast