Waec Model Questions Vol1 2018 Biology Question 50
Practice objective / multiple choice question 50 from the 2018 Waec Model Questions Vol1 Biology examination.
A subject's blood calcium concentration rises to 2.8 mM, whereas the normal set point is 2.4 mM. In response, the parathyroid glands reduce PTH secretion and the thyroid C‑cells increase calcitonin release. The kidneys excrete 30 % of the excess calcium per hour and bone tissue deposits 20 % of the excess per hour. Assuming these processes act simultaneously and continuously, what will be the blood calcium concentration after 2 hours? Give your answer in mM to one decimal place.
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About This Question
This is Waec Model Questions Vol1 2018 Biology Question 50. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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