Bio Lab 105 04 November 2013 The Effects Environmental Temperature and pH have on the Activity of Porcine Pancreatic Amylase Introduction There are many types of enzymes and each has a specific job. Enzymes are particular types of proteins that help to speed up some reactions‚ such as reactants going to products. One of them is the amylase enzyme. Amylases are found in saliva‚ and pancreatic secretions of the small intestine. The function of amylase is to break down big molecules of starch into
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has to be used to make certain foods. This experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by the lab instructor. The methods that have been learned so far in identifying bacteria were applied to this unknown. Procedures were followed as stated in the lab manual and biochemical test handouts. The first procedure that was done was a gram stain followed by a streak of the unknown on a TSA plate in order to determine the gram
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others cannot). In this experiment we used dialysis bag as a model of the cell membrane. Our hypothesis was that the glucose will diffuse out of the membrane into the beaker filled with iodine solution. To demonstrate dialysis tubing we used water‚ starch and iodine. When starch and iodine react together they form a dark brown color. Materials Rubber band Dialysis bag Beaker Glucose solution Iodine solution Water‚ thread Methods Cut a piece of dialysis tubing that has been soaking in water
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tube‚ and close the top end of the tube‚ fold it and tie a string over the top so it is fully sealed. Once done we cleaned the outside of a tube by rinsing it and then using paper towels to dry it. These steps were repeated for the egg white‚ sucrose and starch solutions. Then immediately weigh the tubes on an electronic scale (make sure it is set to 0) using grams and mark down the readings. Then place each tube in a 250ml beaker with enough distilled water to cover all of the tube. Mark each beaker
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materials which are seldomly used in a more different way and utilize it to make a new product which could yield useful results. Moreover‚ the main purpose of this study‚ is to make plastic that can be decomposed easily since it uses raw materials‚ to use starch instead of chemicals and to utilize some of the solid wastes in our society. BACKGROUND OF STUDY Plastic is a versatile and potentially indestructible material‚ which makes it ideal for a number of commercial and
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Name Section______________________________ Virtual Lab: Enzyme Controlled Reactions Worksheet Go to the following website to complete the virtual lab: http://www.mhhe.com/biosci/genbio/virtual_labs_2K8/pages/EnzymeControlledReactions.html Due: Wednesday‚ March 28‚ 2012 during your respective lab time 1. Which of the following does NOT apply to an enzyme: a. Catalyst b. Inorganic c. Protein d. All of the above apply to an enzyme 2. When an enzyme catalyzes a reaction: a. Substrate(s)
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water in a solution. The purpose of this lab was to find the water potential of a potato cell. The problem of this lab was‚ if there was a high molarity of solute‚ would it have a positive or negative water potential? The hypothesis of the experiment was‚ if there is a high molarity of solute then the water potential would be lower or negative. After obtaining potatoes‚ we cut them into pieces‚ weighed them‚ and then placed them in a solution overnight. In this lab‚ we explored the potato cell’s water
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Shakira Jarvis Microbiology Lab Assignment Laboratory Assignment Outline 1. Check in & The Microscope a. Review of proper lab etiquette. i. Review laboratory syllabus and b. Review of the Parts of a Microscope ii. Review of lab exercises about different types of Microscopes 2. Survey of Microorganisms c. Viewing‚ drawing‚ and describing several types of fungi‚ algae‚ and Bacteria iii. Chlamydomonas iv. Spirogyra
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(sections 0375 and 3252) or Thursday December 6th (section 3253) and consist of an open book portion given in CMS 105 followed by a practical portion (closed book) to be given in the lab (CMS 002). You will not need a Scantron. For the open book test‚ be sure to bring any resources you may need including your lab manual‚ lab notebook‚ safety guidelines and handouts. For the practical portion there will be 28 stations set up in the laboratory with something to observe and one or more questions at each
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the acid in lactate acid‚ it interfere with electrical signals in muscles and nerves‚ slows energy reactions‚ and impairs muscle contraction. The burn up we feel in intense exercise is the cause of hydrogen ion. During this experiment(Muscle fatigue lab) it will be seen that after a while of squeezing a small ball there won’t be the same amount of energy that was started with first and you will feel a burn in your arms which makes you feel hurt and don’t do a lot of squeezing; which is called the
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