What chemical compounds does the human body consist of? Oxygen (65%) and hydrogen (10%) are predominantly found in water‚ which makes up about 60 percent of the body by weight. It’s practically impossible to imagine life without water. Carbon (18%) is synonymous with life. Its central role is due to the fact that it has four bonding sites that allow for the building of long‚ complex chains of molecules. Moreover‚ carbon bonds can be formed and broken with a modest amount of energy‚ allowing
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INTRODUCTION TO SCIENTIFIC TERMINOLOGY The purpose of this document is to introduce root words and their definitions. These words play a vital role in Biology because many scientific terms are based on these words. Because these root words are Greek or Latin in origin‚ their meanings have remained consistent throughout time. By becoming familiar with root words and their definitions you can determine general meanings of many terms by simply applying these root word definitions. For example‚ the
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the protons are not equal to the electrons ion the protons are not equal to the neutrons isotope atomic mass = mass of protons + neutrons changing the number of neutrons does not influece the mass or electrons atom behaviour is because of electrons hydrogen almost always loses its electron‚ leaving it a hydrogen ion taking away a negative charge creates a cation adding a negative charge creates an anion electronegativity is the ability to steal electrons electronegativity is influenced
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Title: The Effect of Varying Amounts of Substrate and Enzyme on a Reaction Rate Abstract In living organisms‚ certain reactions must take place rapidly to assist life. This occurs because of enzymes‚ because all reactions would take place too slowly to sustain life (Jacklet‚ 237). Enzymes are large protein molecules that catalyze specific chemical reactions without being used up in the process. Each enzyme has a region on its surface‚ called the active site‚ which recognizes a specific
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Measuring the Respiratory Quotient Table 1 Representing the raw data of the Gas Pressure(kPa) in an enclosed environment during respiration of mung beans and sunflower beans with and without soda lime. Time in seconds(+/-1) | Mung Beans(+/-0.01kPa | Mung Beans with Soda Lime (+/-0.01kPa) | Sunflower Beans(+/-0.01kPa | Sunflower with Soda lime(+/-0.01kPa | 0 | 100.97 | 103.29 | 100.97 | 100.93 | 50 | 100.49 | 102.85 | 100.45 | 100.48 | 100 | 100.07 | 102.51 | 99.89 | 100.07 | 150
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BIOLOGY I BACCHALAUREATE SIXTH PARTIAL SECOND QUIMESTER How students will be grade on a class project? Topics: Photosynthesis (chapter 7) and Cellular Respiration (chapter 8) Objectives: to explain and describe the metabolism of photosynthesis reactions and respiration reactions Specific objectives: (each one is a topic project) to explain the overall reactions of photosynthesis and respiration as metabolic pathways and coupled reaction. to explain and describe photosynthesis
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How Much Protein Do You Really Need? Why is protein important? Protein is part of an important food group that you will need in order for your body to be able to function properly. As a macronutrient‚ protein allows your body to undergo proper growth and development‚ as well as to strengthen its immunity against various sicknesses and diseases. Protein is also responsible for acting as the main building block that repairs your tissues‚ organs‚ tendons‚ muscles‚ and even your bones‚ skin‚ and eyes
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Fat- and Water-soluble Vitamins Vitamins are primarily classified by solubility. Some vitamins are soluble in water and others are soluble in fat. “According to The National Institute of Health‚ the body needs 13 vitamins for normal health.” This includes vitamins A‚ C‚ D‚ E‚ K and the B complex vitamins‚ thiamine‚ riboflavin‚ niacin‚ pantothenic acid‚ biotin‚ B6‚ B12 and folate. Each of these vitamins provides a variety of functions to the body which can be obtained from a well balanced diet
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today’s world‚ athletes are expected to give performances that are better than the last and to stay on top of their game to maintain high profile contracts and other sponsorships such as shoe deals and commercials. Steroids modify the athlete’s metabolism which causes increase in tissue production and in turn help the body’s endurance capabilities. In the sports world‚
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CH4 Prokaryotic Cells No nucleus Plasma membrane Selective permeability lets molecules pass. Enzymes for ATP production. Photosynthetic pigment on folding (on chromatophores or thylakoids). Leakage occurs if damaged by alcohols‚ ammonium‚ and polymyxin antibiotics. Phospholipid bilayer‚ peripheral proteins‚ integral protein‚ transmembrane protein‚ sterols‚ glycocalyx Movement across Membranes Simple diffusion: Movement of solute from high concentration to low Facilitative diffusion: Solute
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