Biology Topic One Maintaining a Balance 1. What are enzymes? Identify their role in metabolism. 2. Enzymes are made up of ____________‚ _____________‚ ______________ and ________________. 3. Enzymes are large __________ that are coiled up to form an ____________ __________. 4. The molecule that the enzyme acts on is called the ______________. 5. Use a model to illustrate how enzymes work. 6. Explain how enzymes
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its internal concentration of salts k. Poikilotherm- an organism whose body temperature changes with its surrounding environment l. ectotherm -- an organism whose body temperature is controlled by its surrounding environment m. homeotherm- an animal that maintains a controlled internal body temperature using its own heating and cooling of mechanisms n. Endotherm- an animal whose internal body temperature is a result of internal sources of heat o. a sexual reproduction -- reproduction accomplished
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within a narrow range‚ regardless of the temperature of their surroundings‚ these species are known as endotherms. Scientists have been studying species such as endotherms for years. Recently‚ scientists came about an observation. How do bees or any endothermic animal‚ generate the heat required to warm itself? Although Bees are invertebrates‚ they are one of the few of them to be an endotherm. This observation went into a series of experiments. These experiments revealed that before a bee flies
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conformers and regulators. Conformers‚ or ectotherms‚ are not capable of maintaining their internal environment when faced with unfavorable external conditions. Therefore‚ they are forced to constantly seek out favorable environments and exert behaviors designed to counteract the environmental challenge. An example of a conformer is a lizard‚ which will bask in the sun to increase its internal temperature or seek shade to decrease it. Regulators‚ or endotherms‚ use physiological mechanisms to counteract
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toads‚ salamanders and caecilians have in common? 2. How many species of frogs and toads exist on Earth today? 3. Body Temperature: How are amphibians and mammals different in the way they control their body temperature? Use the words endotherm and ectotherm. 4. Digestive system: Compare and contrast the digestive system of an (amphibian) and a (mammal). How are they similar/different? 5. Respiration: How is the respiration system in amphibian larvae different from adult amphibians? (Think
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869 Basal Metabolic Rate: History‚ Composition‚ Regulation‚ and Usefulness A. J. Hulbert1‚2‚* P. L. Else1‚3 1 Metabolic Research Centre‚ University of Wollongong‚ Wollongong‚ New South Wales 2522‚ Australia; 2Department of Biological Sciences‚ University of Wollongong‚ Wollongong‚ New South Wales 2522‚ Australia; 3Department of Biomedical Sciences‚ University of Wollongong‚ Wollongong‚ New South Wales 2522‚ Australia Accepted 10/31/03 of animal respiration blossomed with the emergence of physiology
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Metabolic rate refers to the “amount of oxygen consumed by the body cells” (Farlex‚ n.d.). it can be affected by numerous factors‚ some of which being the mass of the animal‚ its physical activity and temperature. Invertebrates are able to live in highly variable conditions due to their metabolism having evolved over time. Homeotherms are animals that are able to maintain a specific body temperature without relying on the temperature from its surroundings. Poikilotherms on the other hand do the exact
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1. Understand what is the same about all life‚ and what makes life diverse LOCS A. List the five characteristics all organisms on Earth share B. Explain why the first four are required for life C. Differentiate heterotrophs and autotrophs 2. Understand that energy to sustain life is derived from chemical potential energy LOCS A. Relate the distance of electrons from their protons to the concept of chemical potential energy B. Define exergonic and endergonic chemical reactions
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Cited: "Ectotherm - Definition from Biology-Online.org." Life Science Reference - Biology Online. Biology-onlne.org‚ 3 Oct. 2005. Web. 04 Oct. 2011. . Clare‚ John. "Daphnia: An Aquarist ’s Guide." Www.caudata.org. Caudata.org‚ July 2002. Web. Aug. 1998. . Dennis‚
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® keep it simple science Copying is permitted according to the Site Licence Conditions only HSC Biology Topic 1 MAINTAINING A BALANCE What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. ENZYMES & HOMEOSTASIS 2. TEMPERATURE REGULATION 3. INTERNAL TRANSPORT SYSTEMS 4. EXCRETION & WATER BALANCE but first‚ an introduction... Living Things are Made of Cells Homeostasis All living things are composed of microscopic units
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