several theories that scientists have proposed in trying to determine the origins of life on Earth. Some theorize that life derived from an extraterrestrial source‚ others believe autotrophs were the source‚ and other groups hypothesizes that heterotrophs were the origin of life on Earth. Currently‚ the heterotroph hypothesis is the most accepted theory of how life started on Earth‚ but there are proponents of the other theories‚ as well. It was put forward that there was actually an
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Short Answer 1. How do heterotrophs obtain energy? 2. What is ATP‚ and when is energy released from it? 3. Write the overall equation for photosynthesis in both symbols and words. 4. Photosystems I and II are both located in the thylakoid membrane. What advantage does their proximity provide? 5. What does the Calvin cycle do? 6. What is the difference between an autotroph and a heterotroph? Give an example of each type of organism. 7. Explain how heterotrophs get their energy from the
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in many other ways. Cells contain only a small amount of ATP at any one time. They regenerate it from ADP as they need it‚ using energy stored in food. Heterotrophs and Autotrophs The energy to make ATP from ADP comes from food. Organisms get food in one of two ways. Heterotrophs get food by consuming (eating) other organisms. Autotrophs use the energy in sunlight to make their own food. Photosynthesis is the process that uses light energy to produce food molecules. Chemical Energy and
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and algae are autotrophs‚ and tigers and humans are heterotrophs. 6.) Describe the different types of consumers. Herbivores eat plants. Carnivores eat meat. Omnivores eat plants and meat. Decomposers‚ such as fungi and bacteria‚ break down dead organisms for food. They return nutrients to the soil. 7.) Describe how energy flows through an ecosystem. Autotrophs get energy to make food through the sun‚ and the heterotrophs get their energy from consuming the autotrophs; they are indirectly
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choices (2 choices) leading to new branches of other choices‚ narrowing the organism down to a specific species. 2 11-02-18 Let s try! Alien Dichotomous Key Owl Pellets Kingdom Archaebacteria Prokaryotic Heterotrophs Bacteria that live in extreme conditions e.g. Bacteria in volcanoes
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digestion involved in the processing of dead or decayed organic matter. It occurs in saprotrophs or heterotrophs‚ and is most often associated with fungi‚ for example Mucor and Rhizopus. The process is most often facilitated through the active transport of such materials through endocytosis within the internal mycelium and its constituent hyphae.[1] [pic][pic] Autotrophic Nutrition The term autotroph has been derived from two Greek wards-auto means self and troph means nutrition. In this mode
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Lab 4 Worksheet: Model Ecosystems Student instructions: Follow the step-by-step instructions for this exercise found on the worksheet below and in the virtual lab and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Please make sure that your answers are typed in RED. Please type your Name and Student ID Number here: Directions 1. Open the Virtual Lab titled “Model Ecosystems”. 2. Please make sure you have
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third phosphate group to ADP to make ATP. What is a cell’s source of this energy? They get this energy from food. Heterotrophs and Autotrophs For Questions 9-13‚ write True if the statement is true. If the statement is false‚ change the underlined word or words to make the statement true. True 9. All heterotrophs must eat food to get energy. True 10. Autotrophs do not need to eat food because they make food. False sunlight 11. The energy in food originally came from ATP. False
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MICROBIAL NUTRITION Nutrition which is also called as nourishment or aliment is a provision to the cells and organisms with the materials necessary to support life. Here it deals with the nutrition in microorganism which is called as microbial nutrition. Nutrients may be divided into three general‚ often overlapping categories: Those that supply energy‚ those that supply carbon‚ and those that supply any and everything else. In this lecture we will consider nutrition from the point
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relationships. 5. List and describe the four main groups of eukaryote. Plants – multicellular‚ photosynthetic life‚ producers‚ autotrophs Animals – multicellular‚ no photosynthesis and independently mobile‚ consumers‚ heterotrophs Protista – multi- or single- celled‚ independently mobile‚ both autotrophs and heterotrophs Fungi – not independently mobile‚ decomposers‚ heterotrophs 6. What are the components of scientific inquiry? The components of the scientific method are making observations‚
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