Photosynthesis and Respiration Quiz
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Questions and Answers

Which of the following is NOT a characteristic of inorganic compounds?

  • They make up the earth's crust
  • They can be found as pure elements
  • They change when reacting with other chemicals (correct)
  • They cannot be used to produce energy

    • In chemistry, what is defined as the smallest part of an element that can enter into a chemical reaction?

  • Molecule
  • Proton
  • Atom (correct)
  • Neutron

    • What determines an atom's chemical and physical properties?

  • Number of neutrons in the nucleus
  • Number of electrons in the electron cloud
  • Arrangement of electrons in the electron cloud (correct)
  • Arrangement of protons in the nucleus

    • How are elements identified?

    <p>By their atomic number</p> Signup and view all the answers

    What type of ions does an acid release when dissolved in water?

    <p>Protons (H+)</p> Signup and view all the answers

    What is the key element in organic molecules that forms the basis of their characteristics?

    <p>Carbon</p> Signup and view all the answers

    Which type of molecules contain only carbon and hydrogen atoms?

    <p>Hydrocarbons</p> Signup and view all the answers

    What are simple carbohydrates composed of?

    <p>Carbon, Hydrogen, Oxygen</p> Signup and view all the answers

    Which of the following best describes the difference in lifespan between plants and animals?

    <p>Plants can be annuals or perennials, while animals can have varying lifespans.</p> Signup and view all the answers

    In which of the following processes do plants primarily engage for their respiration?

    <p>Anaerobic respiration</p> Signup and view all the answers

    What is a key characteristic that distinguishes organic compounds from inorganic compounds?

    <p>Organic compounds are always naturally occurring, while inorganic compounds are synthetic.</p> Signup and view all the answers

    What differentiates animal respiration from plant respiration?

    <p>Animals respire aerobically only, while plants can respire anaerobically.</p> Signup and view all the answers

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