Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Design Rationale It is known that the acceleration due to gravity (or g) is approximately 9.8m/s2 [down] or -9.8m/s2 [up]. What we are trying to do is design an experiment to measure and confirm this value. Our plan was to drop an object from a reasonable height and use a ticker tape timer to measure the amount of time and distance travelled between each time. The weight of the object used would have to be heavy enough that it would not be affected by air resistance. For example‚ you shouldn’t use
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Unit 1 Lab Questions: Jeannie Lozowski Hair Detective 1. Describe the crime that you are investigating in this activity. In this activity‚ we had to discover who stole the rock bands hair products. While the band was in rehearsal‚ someone snuck into their dressing room and stole it. The trail of hair gel lead to the room of another girl band. 2. What evidence do you have to identify the culprit of the crime? We have strands of hair of the culprit and other band members. We tested the hair
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Honors Biology January 21‚ 2013 Forensic Science In today’s age of technology‚ there are many advanced techniques detectives use to get to the root of a crime. Forensic anthropology and other sciences are key to finding the true cause of a person’s death. Without forensics‚ solving crimes would be very difficult because of the lack of evidence from various sources. Some biologists are specially trained and educated in molecular biology and can study a person’s DNA (Ferlini 17). Identifying
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How Computer Forensics Works by Jonathan Strickland Computer Image Gallery Paul Howell/Getty Images Imagine how many files were retrieved from these computers on Enron ’s trading floor. See more computer pictures. When the company Enron declared bankruptcy in December 2001‚ hundreds of employees were left jobless while some executives seemed to benefit from the company ’s collapse. The United States Congress decided to investigate after hearing allegations of corporate misconduct. Much of
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Melissa Mulkey Introduction to Forensics-3 Individual Work Week 2 7/27/13 There are many types of search patterns and they vary on how they are completed and when they are most effective. The different types of search patterns are: Line/Strip Search Pattern‚ Grid Search Pattern‚ Spiral Search Pattern‚ Wheel/Ray Search Pattern‚ Quadrant/Zone Search Pattern‚ and Vehicle Searches. Line Strip Search Patterns is where investigators begin at the boundary at one end of the crime scene and walk straight
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Lab design –Voltaic Cells Aim Of Experiment In this experiment‚ we are going to make a battery by making an electron current between the metals Zinc and Copper. We aim two study the voltaic cells and the transfer of electrons from the metal to the ion. The tendency for the electrons to flow from one chemical to another‚ such as from the zinc metal to the copper ion as shown here‚ is something that can be channeled and controlled. Channeling the flow of electrons is what we will take up in this
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city of Herculaneum was the presence of decay and the risk of it falling apart. 4. How do you think the archeological investigation of Herculaneum relates to forensic anthropology? In what ways are similar techniques and processes used in both of these situations? I think the archeological investigation of Herculaneum relates to forensic anthropology in the way in which both are trying to discover what happened by analyzing the skeletons‚ paintings‚ or any other evidence found. Some similar techniques
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Although we will be focusing on the forensic sciences that typically take place in a crime laboratory‚ there are other types of forensic sciences that are specialized and focused on a particular area. In this section‚ we will briefly take a look at some of these specialty areas. Forensic Pathology/Biology Pathology is a science that deals with disease. Pathologists make use of autopsies to study the tissues and other parts of the human body for diseases. An autopsy is a dissection and examination
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protective clothing which are used to reduce the risk of bringing materials from other locations to the scene of the crime. 2.2.1 Locard’s exchange principle. In forensic science‚ Locard’s principle holds that the perpetrator of a crime will bring something into the crime scene and leave with something from it‚ and that both can be used as forensic evidence 2.2.2 When a person is arrested‚ is not just standing in front of the judge and being convicted‚ there should be
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