CFA 2 Photosynthesis & Cr- 7

5 Questions | Total Attempts: 36

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CFA 2 Photosynthesis & Cr- 7


Questions and Answers
  • 1. 
    Cellular respiration occurs in the muscle cells in a horse's thigh. Glucose is broken down producing carbon dioxide and water. What is the result of this cellular activity for the horse?
    • A. 

      Energy is released for muscle contraction in the horse's thigh.

    • B. 

      Production of water molecules prevents dehydration in the horse's muscle cells.

    • C. 

      Oxygen is also produced and used by the horse's lungs.

    • D. 

      The carbon dioxide breaks down and releases more energy for the horse.

  • 2. 
    The processes of photosynthesis and respiration can be thought of as a cycle because __________.
    • A. 

      One is used only by plants and the other is used only by animals.

    • B. 

      Both give off oxygen to be used by animals.

    • C. 

      The products of one are used as the reactants of the other.

    • D. 

      Both use water as a reactant to make oxygen.

  • 3. 
    Glucose, a simple sugar, is an energy source for living cells. Which of the following statements does not accurately describe glucose's role in living things?
    • A. 

      Glucose is used by animal cells in the production of other substances needed for growth.

    • B. 

      Glucose is a reactant of cellular respiration and a product of the process of photosynthesis.

    • C. 

      Glucose is a reactant during the process of photosynthesis and product of the process of cellular respiration.

    • D. 

      Some of the glucose produced during photosynthesis is stored in seets, roots, or fruits of plants for later use.

  • 4. 
    Why are photosynthesis and cellular respiration often considered to be opposites?
    • A. 

      Photosynthesis produces energy for plants and cellular respiration produces energy for animals.

    • B. 

      Water is released during photosynthesis and consumed during cellular respiration.

    • C. 

      Photosynthesis occurs during the day, and cellular respiration occurs at night.

    • D. 

      Photosynthesis uses solar energy to create glucose and cellular respiration uses glucose to produce energy for the cell.

  • 5. 
    Which statement best describes cellular respiration?
    • A. 

      It occurs in animal cells but not in plant cells.

    • B. 

      It converts energy in food into a more usable form.

    • C. 

      It uses carbon dioxide and produces oxygen.

    • D. 

      It stores energy in food molecules.

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