actions. Peristalsis: It is a series of alternate contraction and relaxation of the circular and longitudinal muscles‚ producing a wave-like motion to move food down the oesophagus‚ from the mouth to the stomach. Emulsification: It is the hydrolysis of a few large fat globules into many small and soluble fat molecules. Transpiration: Transpiration is the loss of water vapour from the exposed parts of a plant; by evaporation from the leaves‚ stems and branches and by the escape of water
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Purines vs. Pyrimidines Purines- adenine & guanine Pyrimidines- cytosine‚ thymine (DNA)‚ uracil (RNA) Pentose vs. Hexose sugars Pentose- 5 carbon atoms Hexose- 6 carbon atoms Carbohydrates Empirical Formula CH2O Hydrolysis vs. Condensation Reactions Hydrolysis- using water to break down protein into amino acids Condensation Reaction- nucleotides Enzymes- a protein that speeds up a chemical reaction - usually end in -ase Ribose vs. Deoxyribose Ribose- C5H10O5 Deoxyribose-
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| Gram Negative Unknown | Biology 3444-006 | | Lena Wallace | 11/7/2011 | | Abstract: The purpose of this lab was to identify an unknown bacteria culture using differential tests. The identification of the unknown culture was accomplished by identifying the bacteria based on its specific metabolic characteristics and morphology. It is suggested that culture 11 is a sample of Enterobacter aerogenes. Introduction: This experiment was centered on metabolic and biochemical testing
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The strain exhibited positive reactions for catalase‚ oxidase‚ βglucosidase‚ and esculin hydrolysis. Strain N-5 was negative in glucose acidification‚ O−F test‚ indole production‚ arginine dihydrolase‚ urease‚ gelatin hydrolysis‚ lysine decarboxylase‚ and tryptophan deaminase. In assimilation tests using API 20 NE among 12 carbon sources tested‚ growth of strain N-5 was observed only in the presence of glucose
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3 Yeast Metabolism Metabolism refers to the biochemical assimilation (in anabolic pathways) and dissimilation (in catabolic pathways) of nutrients by a cell. Like in other organisms‚ in yeast these processes are mediated by enzymic reactions‚ and regulation of the underlying pathways have been studied in great detail in yeast. Anabolic pathways include reductive processes leading to the production of new cellular material‚ while catabolic pathways are oxidative processes which remove electrons
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Produced when starch breaks down (component of alcohol fermentation) Sucrose Glucose + Fructose Sweetest Lactose Glucose + Galactose Carb in milk (milk sugar); contributes half of energy in milk Lactose Intolerance- body lacks enough lactase Hydrolysis Chemical reaction- breaks a disacch into 2 monosacchs Water molecule splits to provide H and OH Commonly occurs in digestion Condensation Chemical reaction- links 2 monosacchs Hydroxyl group (OH) & H atom combine to form water Polysaccharides-
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The Molecules of Cells (Chapter 3 in your textbook) Without water and carbon-based molecules‚ no life as we know it! Carbon: The Backbone of Life • Living organisms consist mostly of carbon-based compounds Also‚ H‚ N‚ O‚ P‚ and S…… • Carbon is unparalleled in its ability to form large‚ complex‚ and diverse molecules. Why? Principal source of carbon on Earth? • Proteins‚ DNA‚ carbohydrates‚ lipids‚ and other molecules that distinguish living matter are all composed of carbon. C21H36N7O16P3S Coenzyme
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fluid‚ that converts starch and glycogen into simple sugars. This enzymatic reaction therefore needs the utilization of water molecules. This is why the reaction is called a hydrolytic reaction and therefore‚ undergoes a procedure referred to as hydrolysis.
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research. Mathematics and Chemistry have sharpened my methodical thinking and logical problem solving skills. Laboratory work in Chemistry has always been exciting to me from a young age. From learning about wet tests to practical work such as the hydrolysis of an ester‚ my passion for the subject in its entirety has increased. This was observed and acknowledged by taking many years of chemistry throughout high school. My immediate goal after obtaining my bachelors degree is to get my masters. With
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activity of bile a chemical or a physical process? Explain. 18. What Ph resulted in the maximum pancreatic lipase activity? How does this optimal Ph correlate to the enzyme`s location in the body? 19. Explain whether or not we can determine fat hydrolysis in tube 5. Why or why not? 20. What is the substrate in the experiment? What subunits does lipase form? Physical Process;
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