Health and Bacteria Overview
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Questions and Answers

What does WHO stand for?

World Health Organization

What are the four aspects of complete well-being?

  • physical, emotional, intellectual, and social
  • physical, psychological, mental, and social (correct)
  • physical, mental, social, and spiritual
  • physical, emotional, mental, and social
  • A disturbance in one area of well-being can affect other areas.

    True (A)

    Which of the following are common causes of infections in children? (Select all that apply)

    <p>Bacteria (A), Viruses (B), Parasites (C), Fungi (D)</p> Signup and view all the answers

    Where do bacteria live?

    <p>Bacteria live everywhere, including in and on us.</p> Signup and view all the answers

    Bacteria are so small that they can only be seen with an electron microscope.

    <p>False (B)</p> Signup and view all the answers

    Give two examples of how bacteria are used in the manufacturing process.

    <p>Bacteria are used in the production of yogurt and sauerkraut.</p> Signup and view all the answers

    What is the optimal temperature range for bacteria to thrive?

    <p>20-37°C (A)</p> Signup and view all the answers

    What type of mineral concentration is ideal for bacteria growth?

    <p>A mineral concentration equivalent to a 0.9% saline solution.</p> Signup and view all the answers

    Bacteria can only use organic materials as a source of nutrition.

    <p>False (B)</p> Signup and view all the answers

    What is the ideal pH for bacteria?

    <p>Neutral pH of 7.</p> Signup and view all the answers

    Which of the following methods are used to preserve food by making it less hospitable to bacteria? (Select all that apply)

    <p>Freezing at -20°C (A), Drying (B), Adding acid through fermentation (C), Smoking (D), Cooling at +8°C (E)</p> Signup and view all the answers

    Explain how freezing affects the consistency of food.

    <p>Freezing alters the consistency of food, making it more stable. For example, ice changes the texture of food when frozen, making it less hospitable to bacteria.</p> Signup and view all the answers

    Flashcards

    WHO Health

    Complete physical, mental, and social well-being.

    Infectious Disease Cause

    Bacteria, viruses, parasites, and fungi.

    Bacteria Size

    Too small to see without a microscope.

    Bacteria Uses

    Yogurt, sauerkraut, waste treatment, biofuel, pharmaceuticals.

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    Bacteria Temperature

    Prefers 20-37°C.

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    Bacteria Salinity

    0.9% saline solution.

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    Bacteria Food Source

    Organic material needed to survive.

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    Bacteria Oxygen

    Mostly oxygen for survival.

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    Bacteria pH

    Neutral, about 7.

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    Freezing Preservation

    Preserves food by lowering temperature to -20°C.

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    Refrigeration Preservation

    Preserves food at 8°C.

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    Pickling Preservation

    Preserves food using vinegar or salt.

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    Drying Preservation

    Removes moisture to hinder bacteria growth.

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    Smoking Preservation

    Preserves food by combining with salt and drying.

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    Bacteria

    Microscopic living organisms.

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    Infectious Diseases

    Illnesses spread from one organism to another.

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    Food Preservation

    Methods used to slow down/prevent bacterial growth in food.

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    Food preservation methods.

    Freezing, refrigeration, drying, smoking, etc.

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    Bacteria Conditions

    Ideal conditions of temperature, moisture, and pH bacteria like to survive.

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    Study Notes

    Health

    • Health is defined by the WHO (World Health Organization) as complete physical, mental, social well-being.
    • If one aspect of health is impaired, it often affects other aspects.
    • Infections are common in children, caused by bacteria, viruses, parasites and fungi.

    Bacteria

    • Bacteria are tiny organisms found everywhere, including inside and on the human body.
    • They are too small to be seen with the naked eye, only visible through a microscope.
    • Bacteria are used in various processes, such as yogurt and sauerkraut production, waste treatment, and biofuel production.
    • Some bacteria cause illness, while others spoil food.
    • To thrive, bacteria need:
      • A temperature between 20-37°C
      • Moisture with a mineral content similar to 0.9% salt solution
      • Organic matter for food
      • Mostly oxygen
      • A neutral pH (around 7)
    • Food preservation methods to prevent bacterial growth include:
      • Freezing at -20°C, though freezing can alter food consistency
      • Refrigerating at +8°C
      • Pickling (fermentation) using substances like vinegar (e.g. pickles)
      • Drying (e.g., dried noodles, flour, sugar)
      • Smoking with salt to remove water.

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    Description

    Explore the definitions and implications of health according to the WHO, and understand the role of bacteria in our lives. From beneficial uses to health risks, this quiz covers essential information about bacteria, their ecosystems, and the importance of health maintenance.

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