Igcse Model Questions Vol1 2017 Biology Question 23

Practice objective / multiple choice question 23 from the 2017 Igcse Model Questions Vol1 Biology examination.

Igcse Model Questions Vol1 2017 Biology Objective / Multiple Choice Medium Difficulty
Question 23 IGCSE_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • objective

In a laboratory experiment a frog's blood plasma contains urea at a concentration of 5 mmol L⁻¹. The frog's glomerular filtration rate is 120 mL min⁻¹ and 50 % of the filtered urea is re‑absorbed by the kidneys. How many milligrams of urea are excreted each minute?

Answer Options

A. 12 mg per minute
Correct Answer B. 18 mg per minute
C. 24 mg per minute
D. 30 mg per minute
Correct Answer
B
Correct Option:
18 mg per minute

About This Question

This is Igcse Model Questions Vol1 2017 Biology Question 23. It is one of the objective questions from the 2017 Igcse Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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