LABORATORY 3: LABORATORY 3: Basic Chemistry for Investigating Living Systems Abstract The purpose of this experiment was to explain how colorimetry can be used to qualitatively detect cellular chemical components; to chemically differentiate between proteins‚ sugars‚ starches‚ and lipids; to identify the roles of molecular components in living systems; to comprehend the value of using a systematic approach to research; and to describe why hypotheses‚ controls‚ standards‚ and quality control
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THE CHEMISTRY OF LIFE (Review 1-7) I. Basic Chemistry A. Elements 1. Definition- an element is a substance composed of a single type of atom 2. Major elements of the human body 3. Trace elements of the body B. Atoms 1. Definition- the atom is the smallest part of an element which cannot be broken down further by ordinary chemical means. Atoms are composed of protons‚ neutrons and electrons. 2. Particles that make up atoms
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Sample Midterm Examination The midterm examination is two (2) hours long. In the actual examination you would not be allowed to consult your books or notes; however‚ you would be able to use a calculator. We strongly recommend that you sit this examination as if you were writing it in an invigilated setting. You will get a much better idea of your degree of preparedness for the actual examination. Part A: Short–answer Questions (1 mark each) 1. Calculate the density of bromine‚ given that 120.0
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Activity 1.1.2 Investigating Basic Circuits (DLB) Introduction What is an electrical circuit? How can you manipulate components and design a circuit that will do what you want it to? This guided activity will introduce you to some components‚ tools‚ and concepts that are fundamental in electronics. It will allow you to investigate and discover: What are voltage‚ current‚ and resistance? How are they related to one another? What are some of the basic components that make up simple circuits and what
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1. Identify which atoms make up a functional group called the amino group (basic) NH2 2. Identify which atoms make up a functional group called the carboxyl group (acidic) COOH 3. Identify which atoms make up a functional group called the R-group or residue- group ’R’ group is a hydrogen 4. Use your book and make a drawing of the structural formula of the molecule. --Make a model of the molecule using the chemistry model kit provided
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Operating System Basics Functions of Operating Systems • An operating system is the software on a computer that manages the way different programs use its hardware‚ and regulates the ways that a user controls the computer. • Provide a user interface • Run programs • Organized file storage Types of Operating Systems • Real-time operating system – Very fast small OS – Built into a device – Respond quickly to user input – MP3 players
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Which parts of the Linux operating system did each provide? Who else has helped build and refine this operating system? GNU stands for "GNU’S Not Unix"‚ and it was designed to be a UNIX-like operating system developed by Richard Stallman. Linux is the name of operating system kernel developed by Linus Torvalds. GNU’s tools aside the Linux kernel make the operating system known as “Linux” aka “GNU/Linux”. Thousands of people helped refine the operating system online. Chapter 2 1. Briefly‚
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9/22/2011 Basic Chemistry Why are we studying chemistry? • Biology has chemistry at its foundation Elements • All matter composed of basic substances called elements • Living organisms require about twenty of the known elements Together‚ carbon‚ hydrogen‚ nitrogen and oxygen make up 95% of the elements found in the body. Atoms • All elements made of tiny particles called atoms • Made up of: – Nucleus • contains protons (+ charge) and neutrons (no charge) – Outside
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bottom of large bodies of water‚ this would allow all bodies of water to freeze solid. Animals would not be able to live underneath the water during cold months‚ which is why the density of water in a solid state is a key factor to the functioning of living organisms. Water molecules stick together as a result of hydrogen bonding. These hydrogen bonds in water are very unstable‚ and are constantly breaking and re-forming‚ meaning that at any second‚ most of the molecules are bonded to the molecules
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The Basics of Management Control Systems Chapter 1: Management and Control The Basics of Management Control Systems Management control u The process by which management: – ensures that people in the organization carry out organizational objectives and strategies; (Reactive: measure performance and compare it with pre-set standards‚ take corrective actions‚ etc.) – encourages‚ enables‚ or‚ sometimes “forces” forces” employees to act in the organization ’s best interest. organization’
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