IB Home Standard Level Higher Level Options Additional Resources 8.2 Photosynthesis 8.2.1 Draw and label a diagram showing the structure of a chloroplast as seen in an electron micrograph 2D Representation 3D Representation Electron Micrograph 8.2.2 State that photosynthesis consists of the light-dependent and light-independent reactions Photosynthesis is a two-step process: 1. The light dependent reactions convert the light energy into chemical energy 2. The light
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Experiment 8.1 Yes there was a change because with the starting snail population there was a great variation from 1-7. After the crab began eating only the snails with the thickest shells survived. The snails with the thinnest shells were eaten by the crab. Only snails with shell thickness 4-7 were left after the crab had their meal. The original snails with thickness 1-3 were eliminated from the population by the crab. The crab will usually try to expend as little enrgy as it can to maximaize its
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Hong Kong Diploma of Secondary Education Examination Integrated Science School-based Assessment Sample Tasks Teachers may use the sample tasks for non-profit making educational and research purposes with proper acknowledgement. © 2009 Hong Kong Examinations and Assessment Authority All Rights Reserved 2009 TABLE OF CONTENT Task C1 C2 C4 C5 C6 C7 C8 E3 Title Osmosis in Living Tissue Catalytic Activity of Enzyme Action of Electricity on Substances Encountered in Daily Life Do
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Discuss the chain of events that led to the discovery of DNA as the heritable substance and the discovery of the structure of DNA. Ans> The chain of events led to the discovery of DNA as the heritable substance and the discovery of the structure of DNA. In the late nineteenth century‚ a German biochemist Friedrich Miescher found the nucleic acids which are long-chain polymers of nucleotides‚ and are made up of sugar‚ phosphoric acid‚ and several nitrogen-containing bases. Later it was found
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LAB 4: KIRCHHOFF’S RULES DIY Lab This section is adapted from reference 1. Objective In this experiment‚ you will experimentally verify Kirchhoff’s rules by measurement and by mathematical analysis. Apparatus (Lab Kit* or NIC Lab) 5 resistors one 6V battery or power supply (each under 1.5 kΩ each‚ not all equal) digital multimeter 12 connecting wires *If you do not have the Lab Kit‚ you can use equivalent items. Contact your instructor regarding equivalent items to ensure that the objective
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JOHN BAPST HIGH SCHOOL NAME : Luis Adrian Vega Alvarez PERIOD: 5 COURSE : Junior 1. Background 1.1. One of the most vigorously debated topics on Earth is the issue of climate change‚ and the National Environmental Satellite‚ Data‚ and Information Service (NESDIS) data centers are central to answering some of the most pressing global change questions that remain unresolved. The National Climatic Data Center contains the instrumental and paleoclimatic records that can precisely
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Emulsifiers What does an emulsifier do? Emulsions in food are mixtures of oil and water. These normally do not mix and will separate if left without an emulsifier. Emulsifiers are among the most frequently used types of food additives. They are used for many reasons. Emulsifiers can help to make a food appealing. The example of the mayonnaise without the emulsifier shows how unappealing it would be if the oil and water separated before it was used. Emulsifiers have a big effect on the structure
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Hypothesis: I predict that the leaves taken from the outer area of a shrub have a higher stomatal index (/density) than those taken from the centre of a shrub this are due to light levels. Explanation: Plants have stomata to obtain carbon dioxide from the atmosphere and remove oxygen produced in photosynthesis. During photosynthesis the chloroplasts in the leaf cells synthesize as a result of exposure to light‚ while oxygen is produced as a by-product. As the outer leafs are exposed to higher light
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Unit 5 Case Study Mariella Hines is a 9 year-old African-American girl attending the 3rd grade in the JFK School. She was referred to the School Psychologist because she has recently become very withdrawn during class‚ refusing to speak to anyone‚ including her teacher and peers. Previously she seemed to have age-appropriate social skills‚ interacting well at school. Her withdrawal started suddenly. Mariella’s teacher‚ Mrs. Levine‚ called Mariella’s mother to find out more information‚ but her
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Exciting Era Biology is the scientific study of life. You are starting your study of biology during its most exciting era. The largest and best-equipped community of scientists in history is beginning to solve problems that once seemed unsolvable. Biology is an ongoing inquiry about the nature of life. Biologists are moving closer to understanding: How a single cell develops into an adult animal or plant. How plants convert solar energy into the chemical energy of food. How the human mind works
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