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5 Written questions

5 Multiple choice questions

  1. positively charged ion
  2. the most abundant cation inside cells
  3. substance that directly determines the acidity or alkalinity of a fluid
  4. a hormone that is secreted when blood pressure rises too high
  5. a component that of stomach acid

5 True/False questions

  1. lungsthe organ that regulates pH balance by altering urine acidity


  2. sodiumthe most abundant cation in the fluid surrounding cells


  3. hydrogen ionnegatively charged ion


  4. anionpositively charged ion


  5. antidiuretic hormonea hormone secreted from the posterior pituitary that causes the kidney to reabsorb water