peptides that are seven to eight amino acids long by proteolysis, a type of chemical reaction. In order to enter the proteasome for degradation, proteins first need to be tagged by a small protein called ubiquitin. The ubiquitin is attached by an enzyme called ubiquitin ligase. After one ubiquitin is attached to the molecule, it sends a signal to other ubiquitin ligases to attach more ubiquitin proteins. Once enough ubiquitin has attached to the protein, the proteasome allows the protein to fasten
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Discussion: Average concentration of NaOH solution was 4.35 M. There are many sources of error in this experiment as we got some percentage differences in the two different trials. For the Trial 1 and Trial 2, the percentage difference is 3.7 % which is significant difference to be noted. This percentage difference could occur due to many reasons such as not measuring the KHP properly as we got 0.42 g for first trial and 0.4139 g for second trial of KHP for performing titration but it is more than
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The enzyme tyrosinase catalyzes the production and synthesis of melanin, which is the pigment that causes discoloration or browning in foods influencing their taste, flavor, and texture (Zaidi 1). For the best performance of foods, industries and homes across the globe result to using preservation, freezing, and blanching to prevent the loss of quality and oxidation reactions that occur. I chose to experiment with the common white button mushroom, also known as Agaricus bisporus, due to my grandparents'
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Biologi Kost og sundhed Helene og Kristoffer ”Uden mad og drikke duer helten ikke” Hvis Ikke kroppen får mad og drikke, kan den ikke fungere. En vigtig del af den daglige nærring er nærringsstoffer. Nærringsstoffer består af kemiske substanser, som vi finder i maden. Gennem den mad vi spiser optager vi de forskellige næringsstoffer så kroppen kan fungere optimalt. Kroppen har brug for alle de forskellige næringsstoffer dog i forskellig grad og mængde. Vi får energi fra de forskellige næringsstoffer
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3.1 Summary The present study was conducted to determine the characteristics of the Antartic yeast Glaciozyma antarctica PI12. Our results indicated that G. antarctica PI12 required 48 hours to reach its mid-log phase, with a doubling time of 15.8 hours per generation. Our result also indicated that G. antarctica PI12 grew better under aerobic condition than anaerobic condition. G. antarctica PI12 was able to grow and proliferate at -5oC and -7oC for at least five months. The cells entered mid-log
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Enzymes An enzyme is a protein molecule that helps to increase the rate in which chemical reactions occur. Recognizing an enzyme is very simple as they are named after a substrate with the suffix “ase” attached to the end. In terms of activation energy, an enzyme’s function is to decrease the amount of energy necessary for the reaction to take place. An enzyme inhibitor prevents that function from happening by binding to the enzyme. There are two different ways that enzyme inhibition can occur
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effect that enzyme concentration has on reaction time and the effect that substrate concentration has on enzyme reaction. Enzymes are biological catalysts that catalyze different chemical reactions. In general, enzymes are proteins and they are each specific to specific chemical reaction. In order for enzymes to process properly, they should maintain a specific three dimensional structure. When enzymes function, they combine with their substrates (reactant) to form susbtrate-enzyme complex. Then
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Enzyme Kinetics: Inversion of Sucrose Abstract Enzymes are a class of proteins that catalyze practically all biochemical reactions. The enzymatic reactions were looked at by the use of two comparable reactions of enzyme invertase and a acidic form of the reaction. The order of the nonacidic enzymatic reaction was zero order due to substrate concentration and due to the fact that the reaction was time dependent. It is also due to having large R2 value at 0.9932 for D run and a smaller R2
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in the fermentation of alcohols, is a model species for the study of eukaryotic cells. They are known to reproduce either sexually, by mitosis, or asexually, by budding, depending on environmental conditions. Yeast grow and reproduce by producing enzymes to catabolise polysaccharides. Upon maturation the parent cell passes its genetic information to the bud which then becomes a genetic copy of the original cell and adds to the population. A growth curve demonstrates the four stages of population growth
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completely prevent catalyst or at least slow the reaction of benzoquinone. Enzymes need to thrive in a certain pH level or else catalyst may not happen. There is no set rule that says that all enzymes will react only when placed in distilled water which has a pH level of 7. This pH level usually is slightly acidic due to carbon dioxide in the air (Moore, 2012). Some enzymes may find water's pH level unacceptable and others enzymes may have no problem. In a test, three bacterium were tested for growth
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