that speed up metabolic reactions. They lower the amount of energy needed for reactions to progress in cells. In enzymatic activity‚ the molecules at the beginning are called substrates. Lactose metabolism is when lactose is destroyed‚ maintained or produced. For instance‚ being lactose intolerance that’s where lactose is destroyed. Metal cofactors in enzyme activity are required to function properly. The Effect of Temperature on Enzymatic Activity: Based on what I know about the effect of temperature
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Title: Investigation of Induction Time of lac operon in E. Coli with IPTG‚ and Comparision of the Amount Beta-galactosidase produced with Lactose‚ IPTG and Antibiotic. Abstract: Introduction: An operon is a group of genes that are arranged side by side with a regulatory gene. It also includes a promoter gene‚ operator gene‚ structural genes. Regulatory genes control transcription with positive or negative signal. (Jacob‚ and Monod‚ 1961) A positive signal‚ inducer‚ would stimulate
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Milestone Assignment By Sam Sherman Heartburn and Lactose Intolerance Heartburn: Heartburn is a burning feeling in the lower chest. It affects taste in the mouth. Sour and bitter tastes occur frequently. Heartburn usually occurs after eating a big meal or while lying down. This feeling can last for a few minutes or a few hours. There are causes and risk factors that come into play. When you eat‚ food passes from your mouth down a tube called the esophagus. To enter the stomach‚ food has to pass
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of energy which is needed for good growth and development of the body and the brain‚ especially for growing up children. Sugars are a type of carbohydrates. Milk which is a natural product in itself also contains sugars known as lactose. It is this sugar (lactose) in milk which helps your child to grow. Therefore‚ all Growing Up Milk will contain some form of sugars. 2. Tell me about the sugars in Dutch Lady’s Growing Up Milk. First of all‚ at Dutch Lady Malaysia we have developed a well
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iLab #2 Carbohydrate Tests INTRODUCTION - For this experiment we will be testing four different bacteria with four different tests‚ using glucose‚ lactose‚ and sucrose. Hopefully we will use the information from those test to be able to identify the organisms in each of the samples from the case studies. We will use the results from the four different tests along with the information of how different bacteria react to match up to the case
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produced. In this investigation‚ the rate of carbon dioxide production (cellular respiration) of yeast using different sugars and one artificial sugar will be measured. The natural sugars used in this investigation will be sucrose (table sugar) and lactose (in milk). The artificial sugar that will be used is aspartame (equal). The rate of respiration between the natural sugars will be compared to that of the artificial sugar. The molarity of the sugar will remain constant at 0.4M for all the sugars
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The increase in the use of lactose production has aided in increase of lactose tolerant humans‚ yet not to the extent that we would think. There is only on average about 30-40% of humans with the lactose tolerant gene‚ which has taken about 40‚000 years to be able to accumulate. These regions are reflected on not only the higher populated areas‚ but also areas in
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Fundamentals of Anatomy & physiology (7th Ed.). San Francisco: Pearson Education‚ Inc. Large intestine. (2007). In Encyclopedia Britannica. Retrieved October 5‚ 2007‚ from Encyclopedia Britannica Online: http://www.britannica.com/eb/article-9047200 Lactose intolerance. (2007). National Digestive Diseases Information Clearinghouse. Retrieved October 5‚ 2007‚ from NDDIC online http://digestive.niddk.nih.gov/ddiseases/pubs/lactoseintolerance/
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beta-galactosidase‚ is an active ingredient in Lactaid. Lactaid helps break down lactose. The second enzyme being used‚ alpha-galactosidase‚ is an active ingredient in Beano which catalyzes the breaking down of melibiose. Melibiose and lactose are both disaccharides composed of two simple sugars galactose and glucose. So‚ can Lactaid break down melibiose as well as lactose (the substrate it is specific to) or Beano break down lactose as well as melibiose (the substrate it is specific to)? How specific are
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the chain of enzymatic manipulations of the glycolytic pathway than glucose in the production of CO2 and alcohol. In the experiment in addition to the control water‚ two of the carbohydrate substrates did not evolve any CO2. These two sugars were Lactose and Starch. The amount of CO2 evolved is a measure of the yeasts ability to use the provided substrate for fermentation. Thus it can be said that the yeast was unable to utilize both of these substrates for fermentation. Starch was not efficiently
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