Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET Medical202623 April 2026Morning ShiftChemistryBiomoleculesActual

Which from following statements regarding biological importance of elements is NOT true?

Options

  1. ACa ²⁺ ions are required for contraction and stretching of muscles.
  2. BMg ²⁺ ions are important for breaking of glucose and fats in protein synthesis.
  3. CK ⁺ ions are most abundant in extra cellular fluid.
  4. DNa ⁺ ions regulate water flow across the membrane.

Correct answer

C. K ⁺ ions are most abundant in extra cellular fluid.

Step-by-step solution

Sodium ions ( Na ⁺ ) are the most abundant cations in the extracellular fluid (blood plasma and interstitial fluid), whereas potassium ions ( K ⁺ ) are the most abundant cations in the intracellular fluid (within cell fluids). Therefore, the statement that K ⁺ ions are most abundant in extracellular fluid is incorrect. Answer: K ⁺ ions are most abundant in extra cellular fluid.

Practice Biomolecules on Quantrex Academy →

More from Biomolecules

What type of sugar is the stachyose? 2026What is the number of stereo structure of glucose? 2026Which of the following is having largest size? 2026Which of the following is non reducing sugar? 2026Which of the following exists as a zwitter ion ? 2026Which of the following is a disaccharide ? 2026Name the polymer in which chains are formed by -1,4-glycosidic linkages between -glucose units and branches are formed by -1,6-glycosidic linkages. 2026Match List I with List II List I (CARBOHYDRATE) List II (TYPE) (A). Glycogen (I). Oligosaccharide (B). Stachyose (II). Monosaccharide (C). Ribose (III). Polysaccharide Choose the c 2026 Full Biomolecules list All MHT CET Medical PYQs