ISSN 0254-4725 Food energy – methods of analysis and conversion factors FAO FOOD AND NUTRITION PAPER 77 Ingested energy (IE) = gross energy (GE) Faecal energy (FE) Combustible gas (GaE) (from microbial fermentation) Digestible energy (DE) Urinary energy (UE) Surface energy (SE) Metabolizable energy (ME) Heat of microbial fermentation Obligatory thermogenesis‚ i.e. excess heat relative to glucose during ATP synthesis Net (metabolizable) energy (NME) Non-obligatory dietary thermogenesis
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Food Chain Christie Page Bio/101 Aug. 6‚ 2013 Dr. Sergio Hosseini The American Crocodile and the American Alligator are top of the food chain in the Everglades for now. The alligators have new competition with the Burmese Pythons. The Burmese Pythons are from Asia but invading the Everglades rapidly. Next would be the mammals like the white tail deer‚ bobcats‚ marsh rabbits‚ otters‚ and raccoons. Birds would
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Energy in food lab report Aim: How much energy there is in food. Hypothesis: If I work out how much the water temperature has risen by burning food underneath water‚ the mass of the water and the mass of food I can work out how much energy was in the food. Introduction: This experiment is about how much energy there is in food. There are a few different types of energy‚ the one we are looking at is chemical energy. Some other types of energy are: thermal energy which is heat‚ magnetic energy which
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Energy content is an important property of food. The energy your body needs for running‚ talking‚ and thinking comes from the food you eat. Energy content is the amount of heat produced by the burning of 1 gram of a substance‚ and is measured in joules per gram (J/g). Usually‚ fat-rich foods like peanuts and cashews provide more energy than just carbohydrates like marshmallows. You can determine the energy content by burning a portion of food and capturing the heat released to a known mass of
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A “Perishable Food” chain Industry facing energy and distribution challenges Kunal Bajaj Indian Institute of Technology Kanpur Kunal Bajaj is M.B.A student at Indian Institute of Technology Kanpur 208016 India (e-mail: kbajaj@iitk.ac.in‚ (M-9198433257)). Specific Conference – Bangkok‚ 2013 Paper Category- Case studies Track-Business Abstract: - There have multiple warehouses (Distribution Centers) located in India and there exist common suppliers for each product. Also‚ these
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Human Influences in a Food Web The temperate rainforest biome (specific to America) is most commonly recognised by its large and tall trees‚ non-seasonal vegetation‚ heavy rainfall and dense humidity. Temperatures rarely drop below freezing and irregularly exceed 27o C. Rainfall usually ranges from 127-165cm a year‚ with some rainforests occasionally receiving more [1]. At the first trophic level the producers are found‚ including: plants‚ flowers‚ seeds‚ nuts and fruit. The first order consumers
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Experiment 4.5 Measuring the energy content of a “Dorito” and Popcorn. Using the method as described on page 46 of the textbook‚ measure the energy content of a Dorito and a “Popped” corn kernel. Aim: 1. Compare your results of each food and determine which will give the greatest energy per gram. 2. How much of each food would you need to boil 250mL of water? Hypothesis: (Before you begin‚ what do you think will be the conclusion.) As the Dorito is heated‚ it will release much more heat
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The Flow of Energy Stacey Ann Langston SCI/209 February 3‚ 2013 Cynthia Collin-Clausen The Flow of Energy The marine ecosystem relies on solar energy converted through photosynthesis by producers. Consumers‚ fish for example‚ metabolize‚ and release as chemical energy to convert into mechanical energy. The ecosystem distributes energy to living organisms through heat energy. Decomposers break down dead organisms and deplete them of their
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04.08 Food Webs—Activity On the diagram below‚ what percentage of energy (from the choices in blue on the left) is transferred from a producer to a: (A) secondary consumer‚ (B) tertiary consumer‚ (C) quaternary consumer? A: 1.0% B: 0.1% C: 0.01% Look at the quote from Rachel Carson on the first page. What do you think the quote means? Use some of the terms we have covered regarding the topic of food webs in your one to two paragraph explanation. I think the quote is true in its meaning
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------------------------------------------------- Food web From Wikipedia‚ the free encyclopedia A freshwater aquatic and terrestrial food web. A food web (or food cycle) depicts feeding connections (what eats what) in an ecological communityand hence is also referred to as a consumer-resource system. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the autotrophs‚ and 2) the heterotrophs. To maintaintheir bodies‚ grow‚ develop‚ and to reproduce
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