colorless when oxidized and pink when reduced. TTC can be used to show the presence of active dehydrogenase enzymes by a change in color. TTC is heat and light unstable. During respiration‚ hydrogen ions or protons are released and picked up hydrogen acceptors‚ either NAD or FAD to form NADH+H+ or FADH respectively. In this experiment‚ I will be find out how long does it take for yeast to dehydrogenases in different temperatures with the help of TTC. I was intrigued that TTC could change color.
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VINEGAR FERMENTATION VINEGAR BACKGROUND Vinegar is one of several fermented foods prepared and used by early man; and like others‚ wine‚ beer‚ bread‚ and certain foods from milk‚ its discovery predates the earliest historical records. The word “vinegar” is derived from two French words‚ “vin” and “aigre” meaning sour wine‚ but the term is now applied to the product of the acetous fermentation of ethanol from a number of sources. (ConnerHubert‚ 1976). Vinegar has played an important but little-emphasized
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Prokaryotes (2006) 6:197–214 DOI: 10.1007/0-387-30746-x_9 CHAPTER 3.3.9 eh T su e nG re t cab re tn o E The Genus Enterobacter FRANCINE GRIMONT AND PATRICK A.D. GRIMONT Introduction The genus Enterobacter was first proposed by Hormaeche and Edwards (1960a). However‚ the history of some species now placed in the genus Enterobacter can be traced‚ albeit with some confusion‚ to the end of the 19th century. “Bacillus lactis aerogenes” was isolated by Escherich (1885) from milk
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Group 2 LS212 Science 8 Members: Cabatay‚ Christian George Castro‚ Aaron Kleber Dimaculangan‚ Martin Carandang‚ Morena Aura Co‚ Romina Rose Cornejo‚ Arianne Kayla Ingridients with specific amount | Nutritional value | Use / Purposes of the ingridients | Cell Processes involved | Remarks | 1 cup Vinegar | Calcium‚ magnesium‚ phosphorus and potassium. | Vinegar is an acid liquid obtained from an alcoholic liquid‚ as cider‚ by oxidation
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Write an explanation of how any two factors affect the rate of an enzyme-controlled reaction. How do these factors affect the chemical structure and properties of the enzyme. Many things can affect the rate of enzyme activity. The temperature of the enzyme‚ the pH of the solution‚ the concentration of the enzyme‚ substrate and the product. Also‚ another affector is the number of competitive and non-competitive inhibitors. As I cannot explain them all‚ I have chosen to explain the effect of temperature
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(sets up a proton gradient. . .) Know the figures I titled as ‘Know this’!! Structures to know: glucose‚ pyruvate‚ acetyl CoA‚ ADP/ATP‚ and NAD+/NADH Enzymes to know (substrates and products): hexokinase‚ pyruvate kinase‚ pyruvate dehydrogenase‚ cytochrome oxidase‚ ATP synthase
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CLC108/CLB108 Tutorial #1 1. 2. Define Cell Theory. Discuss the similarities & differences between prokaryotes & eukaryotes‚ with diagrammatic illustrations. Discuss the similarities & differences between plant & animal cells‚ with diagrammatic illustrations. Describe the Davson-Danielli model of plasma membrane with diagrammatic illustration. State the function(s) of the following cell organelles: (a) (b) (c) (d) (e) (f) 6. Golgi complex Mitochondria Smooth ER Rough ER Ribosomes Lysosome 3.
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Alcohol: Balancing Risks and Benefits Introduction Throughout the 10‚000 or so years that humans have been drinking fermented beverages‚ they’ve also been arguing about their merits and demerits. The debate still simmers today‚ with a lively back-and-forth over whether alcohol is good for you or bad for you. It’s safe to say that alcohol is both a tonic and a poison. The difference lies mostly in the dose. Moderate drinking seems to be good for the heart and circulatory system‚ and probably
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SC/BIOL 2020.03 Biochemistry Midterm #1 Name: Student ID: Feb 7th‚ 2013 Time: 1 hr and 15 min This test has multiple choice: 24 Marks. Fill in the blanks: 10 Marks Peptide structure: 6 Marks There are a total of 10 pages of this exam. You are allowed to use a non-programmable calculator. For multiple choice: Choose the BEST answer and indicate your choice on the scantron. Please use a pencil. 1 1. Which of the following weak interactions is NOT due to differences in electrical
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Electron transport and oxidative phosphorylation 1. The mitochondrion Lec 8 A. Mitochondrial anatomy B. Mitochondrial transport systems 2. Electron transport A. Thermodynamics of electron transport B. The sequence of electron transport Lec 9 C. Complex I NADH Coenzyme Q Oxidoreductase D. Complex II succinate Coenzyme Q Oxidoreductase E. Complex III Coenzyme Q-Cytochrome c Oxidoreductase F. Complex IV Cytochrome c oxidase 3. Oxidative Phosphorylation A. The Chemiosmotic Theory
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