Neville Period 1 10/14/12 Enzyme lab Enzymes are biological catalysts that speed up the process of chemical reactions. They are also proteins‚ and most enzymes activities occur within organism. They decrease activation energy‚ energy that is needed to start a chemical reaction. Enzymes are substrate specific substrates ending in "-ase"‚ enzymes ending in "-ase". External factors‚ such as temperature‚ pH‚ and concentration of the substrate‚ affect the enzymes activity in the lab‚ pectase and
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Title: Investigation of the Enzymatic Effects of Materials on Hydrogen Peroxide Solution Objective: To investigate the enzymatic effect of various materials in the hydrogen peroxide solution Apparatus and Equipment: Beaker‚ Boiling tubes‚ Water bath‚ Pen knife‚ Glass rod‚ Parafilm. Materials: Fresh liver‚ Potato cubes‚ Manganese dioxide‚ Hydrogen peroxide‚ Wood splints Procedures: 1. Six fresh empty boiling tubes 1‚ 2‚ 3‚ 4‚ 5‚ 6 were labeled. 2. The liver provided was cut into
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Dehydrogenase catalyzed reaction. 6. To determine the effect of heat on a Xanthine Dehydrogenase catalyzed reaction. Introduction: Enzymes are specialized biologically made proteins that have catalytic functions that are essential for the maintenance and activity of life (Amano 2007). All living cells have enzymes but they are different‚ they depend on the concentration of enzymes that are found in the organelles. A catalyst is a substance that speeds up a chemical reaction but remains unchanged itself
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Enzymes: Food & Nutrition What are enzymes Enzymes are a type of protein produced by a living organism used to catalyze chemical reactions in cells. These reactions allow the cell to build things or take things apart as needed in order to grow and reproduce. How do enzymes work - in steps 1) Substrate floats near enzyme 2) Substrate and enzyme connect – which breaks it into products 3) Products are released ex) BreadFast & Co.’s use of enzymes The company uses many different
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INTRODUCTION Enzymes are a protein serving as a catalyst‚ a chemical agent that changes the rate of the reaction without being consumed by the reaction. Enzymes are proteins made up of long chains of amino acids. These form complex shapes. The enzymes are individuals‚ like the different players on a ball team‚ they have different specific structures and jobs. As one ball player may be very tall and one short‚ the specific different shape of the active site on an enzyme is unique and prepares it
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Lab : Iodine-starch Clock Reaction Pre-lab: Before the lab was conducted‚ the concentration of the Iodate ions to be in the mixture made by dissolving specific volumes of solution A with a constant concentration and water was calculated using the dissolution formula: C1V1 = C2V2 Sample Calculation 1: Concentration of the Iodate ions: For mixture 1: C2 = C1V1/ V2 = (0.020mol/L) x (0.003L)/(0.01L) = 0.006mol/L The same calculations were used in the calculating of the
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(fibre/starch) / sugars‚ proteins‚ oils‚ other nutrients Meat‚ bones / proteins‚ fats Nectar & pollen / High sugar content (sucrose‚ glucose‚ fructose)‚ carbohydrates Function of various structures within their digestive systems Four stomach chambers: Rumen – bacteria and protozoa break down cellulose. Reticulum - Once rumen is full goat regurgitates‚ the reticulum allows for this to happen. Omasum – bacteria and micro-organisms breakdown food. Obomasum – secretes acid and enzymes to break
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Experiment 4 – Effect of Temperature on Enzyme Activity Aim To study the effects of temperature on the activity of amylase enzyme on starch solution. Introduction Enzymes are widely known as biological catalyst. Almost all cellular reactions are controlled and guarded by enzymes. Virtually every metabolic reaction which takes place within a living organisms are catalyzed by enzymes. Enzymes are complex three-dimensional globular proteins. Some of the enzymes are built up off proteins and some
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protein structure would be tertiary‚ or quaternary. (b) Discuss how the structure of a protein affects the function of TWO of the following. • Muscle contraction • Regulation of enzyme activity • Cell signaling Enzymes bind to their substrates at a specific point called the active site. The regulation of enzyme activities mostly involves the inhibition of substrates‚ and this inhibition is divided into two types. The first type‚ competitive inhibitor‚ binds the inhibitors at the active site
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SYLLABUS for BIO 101 – FALL 2013: HUMAN BIOLOGY Instructor: Lectures: Dr. Matthew Schmidt Tuesdays and Thursdays‚ 7-8:20 pm‚ Rm. 100 Javits Lecture Center Textbook: BIO 101 Human Biology Edu-Pack‚ Schmidt (Rothman Media). Office Hours: Tue/Th. 5:30-6:30 Office: Life Sciences Room 372 Telephone: (631) 360-4054 E-mail: matt.schmidt@esc.edu Teaching Assistants: see Blackboard Quiz/Review session times/locations: see Blackboard Course Website: BLACKBOARD LECTURE DATE TITLE
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