Water and Minerals in the Body Quiz
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Questions and Answers

What is the approximate level of water in fat tissue?

  • 15%
  • 20%
  • 5% (correct)
  • 30%

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

  • Transportation
  • Regulation of body temperature
  • Lubrication
  • Insulation (correct)

    • What myth about water intake is debunked in the text?

  • Fluid requirements reflect individual needs.
  • General guidelines should not be adjusted.
  • Individual requirements do not vary.
  • Everyone should drink exactly 8 cups of water per day. (correct)

    • Approximately how much of the body's blood consists of water?

    <p>80-90%</p> Signup and view all the answers

    Which factor influences individual water intake requirements according to the text?

    <p>Body composition</p> Signup and view all the answers

    Which of the following describes the movement of water through a selectively permeable membrane?

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

    What is the approximate percentage range of water in muscle tissue?

    <p>75-77%</p> Signup and view all the answers

    Which electrolyte is responsible for controlling fluid shifts in and out of cells?

    <p>Sodium (Na+)</p> Signup and view all the answers

    What is a common symptom of sodium deficiency?

    <p>Muscle Weakness</p> Signup and view all the answers

    What is the term used to describe excessive hydration beyond the normal needs of the body?

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

    Which of the following electrolytes attracts water as cells move it in and out?

    <p>Chloride (Cl-)</p> Signup and view all the answers

    Which of the following is a major physiological function of sodium in the body?

    <p>Aids in nerve function and muscle contractions</p> Signup and view all the answers

    What are some general signs of hyponatremia?

    <p>Nausea and vomiting</p> Signup and view all the answers

    Where is most of the water located in the human body?

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

    What is one major function of water in the body?

    <p>Regulates body temperature</p> Signup and view all the answers

    What is hyperhydration commonly known as?

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

    What is a common symptom of hypohydration ('dehydration')?

    <p>Flushed skin</p> Signup and view all the answers

    What is the main function of sodium in the body according to the text?

    <p>Regulates blood pressure</p> Signup and view all the answers

    How does osmotic pressure affect the movement of water across cell membranes?

    <p>Accelerates water movement</p> Signup and view all the answers

    Which electrolyte plays a key role in regulating body fluids through osmosis?

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

    What happens to water when salts like electrolytes are dissolved in it?

    <p>Water is drawn towards the salts</p> Signup and view all the answers

    How do anions and cations affect the movement of water in the body?

    <p>They attract water</p> Signup and view all the answers

    Which electrolyte is responsible for attracting hydrogen ions (H) in the body?

    <p>Chloride (Cl-)</p> Signup and view all the answers

    Which mechanism controls carbonic acid levels in the blood?

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

    What is the primary role of bicarbonate ions and carbonic acid in the blood?

    <p>Maintaining acid-base balance</p> Signup and view all the answers

    In cases of metabolic acidosis due to electrolyte imbalance, what symptoms might a person experience?

    <p>Confusion and fatigue</p> Signup and view all the answers

    Which of the following is NOT a common electrolyte found in the body?

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

    What happens to pH levels when there is an imbalance of electrolytes due to hyperhydration?

    <p>pH levels increase (metabolic alkalosis)</p> Signup and view all the answers

    How are phosphate buffers involved in maintaining pH balance?

    <p>By neutralizing strong acids with weak bases</p> Signup and view all the answers

    What are the main roles of sodium in the body?

    <p>Maintaining electrolyte balance and muscle contraction</p> Signup and view all the answers

    Why is chloride essential in the body?

    <p>For regulating acid/base balance and electrolyte balance</p> Signup and view all the answers

    How do sodium and chloride exist in table salt (NaCl)?

    <p>60% sodium and 40% chloride</p> Signup and view all the answers

    Which statement accurately describes the relationship between electrolytes and electricity?

    <p>Electrolytes help conduct electrical charges in the body</p> Signup and view all the answers

    Why does the body need to balance cations and anions in intracellular and extracellular fluids?

    <p>To facilitate cellular communication and maintain cell function</p> Signup and view all the answers

    What is the primary role of Na-K pumps in maintaining intracellular fluid composition?

    <p>To maintain high potassium and low sodium concentrations within cells</p> Signup and view all the answers

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