A: Energy cannot be created or destroyed but only converted to other forms. Heat is a form of energy. 4.) Q: What is the Second Law of Thermodynamics? (1 mark) A: The entropy of the universe always increases. 5.) Q: All energy is eventually converted into what form of energy? (1 mark) A: Heat. 6.) Q: Organisms are not closed systems because they use two things, which are: (2 marks) A: Matter and energy. 7.) Q: The producers in a food chain are called what? (1 mark) A: Autotrophs. 8.) Q: Give an example of potential energy. (1 mark) A: A coiled snake. 9.) Q: Give an example of kinetic energy. (1 mark) A: A striking snake. 10.)Q: Energy arrives from ................. , passes through ....................... , and dissipates into ................ , as heat. (4 marks)
A: Energy arrives from the sun, passes through autotrophs to herbivores to carnivores and omnivores to saprophyte, and dissipates into the environment and universe as heat. 11.) Q: Nutrients are passed from one organism to another in closed loops called ............................ (1 mark) A: biogeochemical cycles. 12.) Q: Give the definition for: catabolism. (1 mark) A: The breakdown process where organisms breakdown large molecules into simpler substances. 13.) Q: Give the definition for: anabolism. (1 mark) A: The building process where organisms build and repair themselves. 14.) Q: Give the definition for: metabolism. (1 mark) A: All of the chemical reactions (catabolism and anabolism) within a cell or within a whole organism. 15.) Q: Give the definition for: chemical reaction. (1 mark) A: A chemical reaction is a process where one or more substances are altered into one or more new and different substances. 16.)Q: Give the definition for: bond energy. (1 mark) A: The amount of energy it takes to break apart molecular bonds. In potential energy, this chemical bond is stored as energy in nutrient molecules. 17.) Q: Catabolizing + Anabolizing = ........................ (1 mark) A: Metabolizing.
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