Neco Model Questions Vol1 2020 Biology Question 13

Practice objective / multiple choice question 13 from the 2020 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2020 Biology Objective / Multiple Choice Medium Difficulty
Question 13 NECO_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • objective

A subject has a plasma urea concentration of 7 mmol L⁻¹ and a glomerular filtration rate (GFR) of 125 mL min⁻¹. Urea is filtered completely and 50 % of the filtered load is reabsorbed. If the urine flow rate is 1.2 mL min⁻¹, (a) how many millimoles of urea are excreted per minute? (b) what is the urea concentration in the urine (mmol L⁻¹)?

Answer Options

A. 0.52 mmol min⁻¹; 433 mmol L⁻¹
Correct Answer B. 0.44 mmol min⁻¹; 365 mmol L⁻¹
C. 0.35 mmol min⁻¹; 292 mmol L⁻¹
D. 0.44 mmol min⁻¹; 300 mmol L⁻¹
Correct Answer
B
Correct Option:
0.44 mmol min⁻¹; 365 mmol L⁻¹

About This Question

This is Neco Model Questions Vol1 2020 Biology Question 13. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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