Water Movement between Extracellular Space and Blood
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Questions and Answers

Which biological process contributes to our daily water needs?

  • Cellular division
  • Cellular differentiation
  • Cellular decomposition
  • Cellular respiration (correct)

    • What is the main function of the kidneys in regulating water levels?

  • Absorbing more water from food
  • Producing more water
  • Excreting excess water in urine (correct)
  • Storing excess water

    • How does the body indicate that it is deficient in water?

  • By increasing blood volume
  • By increasing metabolic processes
  • By decreasing urine output
  • By increasing thirst (correct)

    • What is the role of cytoplasm in maintaining water levels in the body?

    <p>It releases water when cells are broken down</p> Signup and view all the answers

    What is the main biological solvent in the body?

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

    Why is water considered the most important biological solvent?

    <p>Because it can dissolve a variety of polar substances necessary for cellular functions</p> Signup and view all the answers

    How does water help in chemical reactions within the body?

    <p>By increasing the chance of reactants colliding</p> Signup and view all the answers

    What is the role of water in the breakdown of larger molecules into smaller ones?

    <p>Water adds to the breakdown process</p> Signup and view all the answers

    How does water within cells facilitate material movement?

    <p>By allowing materials to move freely</p> Signup and view all the answers

    What happens within the lymph when an infectious agent enters the body?

    <p>The infectious agent is moved to the lymph where immune cells act on it</p> Signup and view all the answers

    What is the role of water in synovial fluid?

    <p>It protects bones that articulate from scraping against each other</p> Signup and view all the answers

    What is the function of cerebrospinal fluid in the body?

    <p>It helps to protect the brain from various forces that could cause damage</p> Signup and view all the answers

    How does water help regulate body temperature?

    <p>Through the evaporation of sweat from the skin</p> Signup and view all the answers

    What type of fluid is found lining the digestive tract and respiratory system?

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

    What is the importance of maintaining a body temperature of around 37°C?

    <p>It allows the body to function properly</p> Signup and view all the answers

    What dictates the functions of water based on its structure?

    <p>The polar nature of the water molecule</p> Signup and view all the answers

    Why is it essential to consume a constant supply of water?

    <p>To replenish water constantly lost from the body</p> Signup and view all the answers

    Which characteristic of water makes it a suitable biological solvent?

    <p>Its polar charges</p> Signup and view all the answers

    What sensitivity in the body is linked to reductions in the water content of blood and tissues?

    <p>Thirst mechanisms</p> Signup and view all the answers

    How does the V-shape of a water molecule contribute to its functions in the body?

    <p>Allows water to be attracted to other water molecules</p> Signup and view all the answers

    What is the primary function of protein in regulating water exchange between the blood and extracellular space?

    <p>To maintain fluid balance and prevent water buildup in the extracellular space</p> Signup and view all the answers

    Which of the following is NOT a function of water in the body?

    <p>Promoting bone growth</p> Signup and view all the answers

    What drives the movement of water across semi-permeable membranes like blood capillaries?

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

    What is the purpose of the water-based humour in the eye?

    <p>To maintain the eye's structure</p> Signup and view all the answers

    What type of substances are carried by the blood and attract water?

    <p>Charged, polar</p> Signup and view all the answers

    What is the primary component of cytoplasm?

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

    What percentage of blood is composed of water?

    <p>More than 90%</p> Signup and view all the answers

    Where is most of the body's water found?

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

    What type of molecules are attracted to water?

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

    What happens to lipids when combined with water?

    <p>They separate themselves</p> Signup and view all the answers

    What is the primary component of cells?

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

    What happens when there is too much water in the body compared to dissolved electrolytes like sodium?

    <p>Water intoxication</p> Signup and view all the answers

    What is the approximate water recommendation for men?

    <p>3.7 L/day</p> Signup and view all the answers

    What promotes water losses in the body?

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

    What is a sign of dehydration?

    <p>Darkened urine colour</p> Signup and view all the answers

    What is water's role in the body?

    <p>Diverse range of structural and functional roles</p> Signup and view all the answers

    What should be replenished when excessive water is lost?

    <p>Both water and electrolytes</p> Signup and view all the answers

    What is a remedy for a hangover?

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

    What is the percentage of the body's water found in cells?

    <p>Two thirds</p> Signup and view all the answers

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