Physiology Lab Quiz
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Questions and Answers

What happens to a cell when the solute concentration outside the cell is higher than inside?

  • The cell becomes more rigid.
  • The cell remains unchanged.
  • The cell swells and may burst.
  • The cell shrinks and may crenate. (correct)
  • What is the pH of blood?

  • 3.2
  • 6.2
  • 7.4 (correct)
  • 2.8
  • What happens to a cell when the solute concentration outside the cell is lower than inside?

  • The cell shrinks and may crenate.
  • The cell remains unchanged.
  • The cell swells and may burst. (correct)
  • The cell becomes more rigid.
  • What is the characteristic of a cell in an isotonic solution?

    <p>The cell remains unchanged.</p> Signup and view all the answers

    What happens to a red blood cell in a hypertonic solution?

    <p>It shrinks and may crenate.</p> Signup and view all the answers

    Which of the following has a pH closest to neutral?

    <p>Blood (pH = 7.4)</p> Signup and view all the answers

    What is the result of a cell in a hypotonic solution?

    <p>The cell swells and may burst.</p> Signup and view all the answers

    What is the characteristic of a cell in a hypertonic solution?

    <p>The cell shrinks and may crenate.</p> Signup and view all the answers

    Which of the following solutions has a solute concentration equal to the cytoplasm?

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

    What is the effect of a hypotonic solution on a cell?

    <p>The cell swells and may burst.</p> Signup and view all the answers

    Study Notes

    Kidney Function

    • The kidneys do not produce digestive enzymes.
    • They regulate electrolyte balance, blood pressure, and filtration of waste products from the blood.

    Unit Conversions

    • 4.8 x 10^9 gigaliters is equivalent to 4.8 x 10^18 liters.
    • 5 kg is equivalent to 5 x 10^3 grams.
    • 6 micrograms is equivalent to 6 x 10^-9 kg.
    • 2 nm is equivalent to 2 x 10^-9 m.
    • 3.1 Gm is equivalent to 3.1 x 10^12 mm.

    Organ Systems

    • Cardiovascular and Respiratory Systems: Transport oxygen and nutrients to cells, and remove carbon dioxide and waste products.
    • Muscular and Skeletal Systems: Provide structure and support, enable movement.
    • The heart is an organ, not an organ system.

    Homeostasis

    • Sweating to cool down the body on a hot day is an example of a homeostatic process in the human body.
    • pH of human blood is normally between 7.35 and 7.45.

    Blood Cells

    • A hypotonic solution causes a red blood cell to swell and potentially burst.
    • A hypertonic solution causes a red blood cell to shrink and may crenate.
    • Saline water is the solution that would cause a red blood cell to neither shrink nor swell and maintain its original shape.

    pH Imbalance

    • Metabolic alkalosis is a type of pathological pH disease.
    • Respiratory alkalosis is usually triggered by high altitudes.
    • In cases of acidosis, the pH of blood is less than 7.35.

    Physiology

    • Carbonic acid is converted to water and carbon dioxide by carbonic anhydrase.
    • Carbonic acid is a weak acid.
    • The primary difference between 'function' and 'process' in physiological terms is that function explains 'why' and process explains 'how'.

    Medical Scenarios

    • A 70-year-old male with chronic obstructive pulmonary disease (COPD) may experience difficulty in breathing, confusion, and drowsiness.
    • A 42-year-old woman with severe gastritis may have a metabolic alkalosis due to vomiting.
    • Compensation mechanism for COPD involves secretion of H+ and reabsorption of HCO3-.

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    Quiz 1 Physiology Lab.docx

    Description

    This quiz assesses knowledge of physiology lab concepts, including kidney functions and unit conversions.

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