following) more; less; same) neutrons. 10. Electrons are arranged in electron shells. The electron shell closest to the nucleus has a maximum capacity of _2___ electrons‚ whereas the second shell holds a maximum of _8__ electrons for elements in Biology. 11. The outermost shell is referred to as the __valance__ shell. The electrons in the outermost shell are referred to as the _valance_ electrons. 12. Trick Question: How many electrons does 42He need to be stable? _It is balanced__ 13.
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Wave Nature of Light Objective: The purpose of this lab is to investigate interference‚ otherwise known as the diffraction of light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase
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What is Enzyme? Enzymes are protein that acts as speed up reactions and break down molecules in our body. However‚ different enzymes only work on certain types of molecules. Enzymes can accelerate the reactions by more than one million times.(3) In our human body‚ there are a total about forty thousand types of enzymes and each catalyzes different kind of molecule.(3) The molecules that enzymes help to accelerate is called substrates‚ and when enzyme is combined together with the substrate‚ it
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PEES 4200W- Physiology of Exercise Lab #2: Metabolism and Energy Expenditure 1. The Respiratory exchange ratio is the ratio of the volume of carbon dioxide produced and oxygen consumed. The ratio indicates the energy that the subject is expending for indirect calorimetry‚ how efficient the subject ’s body is at utilizing the oxygen inhaled‚ as well as the main substrate being used for energy during varying intensities of exercise. During rest the volume of carbon dioxide was 0.73L/min‚ the volume
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will show the visual representation of DNA proteins‚ and that the shorter the band the further is will travel. Background: Restriction enzymes are DNA-cutting enzymes found in bacteria‚ which cut DNA into smaller fragments. A restriction enzyme recognizes and cuts DNA only at a particular sequence of nucleotides‚ known as restriction sites. Restriction enzymes recognize a specific sequence of nucleotides and produce a double-stranded cut in the DNA. The recognition sequences usually vary between
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William Perez Cell Biology 2440 Lab on protein Myosin Proteins are chains of amino acids that perform the most important functions in living organism. Every protein will contain an amino group‚ carboxyl group‚ a different R group and an alpha carbon with two hydrogens. There are nine types of functions proteins can have‚ enzymes‚ motor‚ receptor‚ structural‚ storage‚ transport‚ signaling‚ and special purpose proteins(antibodies). There are four levels of protein structure‚ primary‚ secondary
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Objective of experiment * The objective of the experiment is to assess the effect of different pH conditions on enzyme activity. Hypothesis * I feel the pH affected the enzyme activity to produce product. Prediction * If the pH affected the enzyme activity to produce product‚ then rate of reaction will change. Procedure * The procedure that we followed was to take two test tubes and label one pH2 and one pH10 and incubate 1 ml of each solution for 30 minutes. Then after 30 minutes
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1. Introduction Welcome to GCSE Biology. This year we will be studying OCR 21st Century science. This is a modular course of 7 units and a piece of coursework. 2. Your Lecturers In the box below write the name of your lecturer‚ the times of your lessons and which rooms they are in. You should also write your lecturers staff room and how to contact them (their office phone number and college e-mail addresses). Lecturer Times & Rooms Contact details 3. Structure of the course
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*Henry David Thoreau: He’s the most important transcendentalist. One has to self-identify first. -Style VS. Philosophy • Belief in the “Oversoul” (shared metaphysical human connectedness) • Some has to have spiritualism. (Focal point of human essence‚ Tuning in‚ tuning into the oversoul moment) • Independent‚ eclectic = you have a better understand of others than others. Men Say They Know Many Things Men say they know many things; But lo! they have taken wings‚ — The arts and sciences
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lipase‚ an enzyme that breaks down fat. The fat hydrolysis test was positive‚ showing K. pneumoniae produces lipase and can break down fats. The indole test was performed to determine if our bacteria can break down tryptophan via the enzyme tryptophanase. Our indole test came back negative‚ meaning K. pneumoniae does not produce tryptophanase and does not break down tryptophan into indole‚ ammonia‚ and pyruvic acid. The urea test was performed to determine if urea is hydrolyzed via the enzyme urease
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