Neco 2022 Biology Question 31

Practice objective / multiple choice question 31 from the 2022 Neco Biology examination.

Neco 2022 Biology Objective / Multiple Choice Medium Difficulty
Question 31 NECO • 2022 • BIOLOGY • objective

A mammal has a glomerular filtration rate (GFR) of 120 mL min^{-1} and a filtered load of sodium of 150 mEq min^{-1}. (i) Determine the plasma sodium concentration in mEq L^{-1}. (ii) If 99 % of the filtered sodium is re‑absorbed, calculate the amount of sodium excreted per minute.

Answer Options

Correct Answer A. Plasma Na⁺ concentration = 1250 mEq L^{-1}; Sodium excreted = 1.5 mEq min^{-1}
B. Plasma Na⁺ concentration = 1300 mEq L^{-1}; Sodium excreted = 2.0 mEq min^{-1}
C. Plasma Na⁺ concentration = 1250 mEq L^{-1}; Sodium excreted = 1.2 mEq min^{-1}
D. Plasma Na⁺ concentration = 1200 mEq L^{-1}; Sodium excreted = 1.5 mEq min^{-1}
Correct Answer
A
Correct Option:
Plasma Na⁺ concentration = 1250 mEq L^{-1}; Sodium excreted = 1.5 mEq min^{-1}

About This Question

This is Neco 2022 Biology Question 31. It is one of the objective questions from the 2022 Neco Biology examination.

Difficulty level: Medium .

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