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Which is not an important electrolyte?

  1. A
    Potassium
  2. B
    Nitrogen
  3. C
    Sodium
  4. D
    Calcium

Topic Flashcards

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Question

What defines a substance as an electrolyte in the context of human physiology?

Answer

It is a mineral that dissociates into positively or negatively charged ions (e.g., Na⁺, K⁺, Ca²⁺, Cl⁻) when dissolved in body fluids, allowing it to conduct electricity and participate in vital functions.

Question

Which electrolyte is the primary cation (positively charged ion) in extracellular fluid and is crucial for nerve impulses and blood pressure?

Answer

Sodium (Na⁺).

Question

Which electrolyte is the primary cation found inside cells and is vital for maintaining cell volume and electrical activity of the heart?

Answer

Potassium (K⁺).

Question

While nitrogen is not an electrolyte, in what vital forms is it used by the body?

Answer

As a key component of amino acids (proteins), nucleic acids (DNA/RNA), and some vitamins.

Question

What is a common medical intervention for a severe electrolyte imbalance?

Answer

Administration of IV (intravenous) fluids containing specific electrolytes, like normal saline (NaCl) or Ringer's solution.

Mini Quiz

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Chloride (Cl⁻) is an important anion electrolyte that works closely with sodium to maintain fluid balance and is a component of stomach acid.
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