Section 6.1 1. What is the energy source of life? Section 6.2 The Nature of Ener
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Section 6.1 1. What is the energy source of life? Section 6.2 The Nature of Energy 2. What is energy? 3. What is potential energy vs kinetic energy? 4. What is thermodynamics? 5. State the First Law of Thermodynamics 6. What is heat? 7. State the Second Law of Thermodynamics 8. What is entropy? Section 6.3 How is Energy used by Living Things? 9. What is an exergonic reaction vs endergonic reaction? 10. What is a coupled reaction? Section 6.4 The Energy Dispenser: ATP 11. How is ATP used by muscle extensions? 12. Define ATP. What is the complete full name of ATP? 13. What are the three parts of ATP? 14. Which phosphate group is lost or donated when ATP releases Section 6.5 Efficient Energy Use in Living Things: Enzymes 15. What is an enzyme? 16. Define substrate, metabolic pathway, and metabolism. Section 6.6 Enzymes and the Activation Barrier 17. Define activation energy 18. What do you mean by enzymes are catalysts? 19. Define the enzyme's active site. 20. What are coenzymes.Explanation / Answer
6.1) 1. The main source of energy for life are autotrophic plants which manufacture food by the process of photosynthesis using water and Carbon dioxide as raw materials.
6.2)
2. Energy is a property which enables the living organism to do work. It is the capacity of doing work.
3. Energy possessed by a body due to its position is called its potential energy. For example a stone taken to height gains potential energy and when released it gets converted into kinetic energy. The energy possessed by body due to its motion is called kinetic energy.
5. First law of thermodynamics is called law of conservation of energy. It states that energy can neither be created nor destroyed but can be transformed from one form to other.
6. Heat is form of energy which gives sensation of warmth.
9. ExergOnIc reaction is a type of reaction in which energy is released, whereas in endergonic reaction energy is taken from the system.
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