Gce Model Questions Vol1 2024 Biology Question 32
Practice objective / multiple choice question 32 from the 2024 Gce Model Questions Vol1 Biology examination.
During the menstrual cycle, a surge in luteinising hormone (LH) is triggered when the plasma estradiol concentration rises above 200 pg mL⁻¹. After the LH surge, estradiol production falls by 15 % each hour because of negative feedback. If the estradiol level at the moment of the surge is 250 pg mL⁻¹, after how many whole hours will the concentration drop below the 200 pg mL⁻¹ threshold? Also give the estimated concentration at that time (rounded to the nearest pg mL⁻¹).
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This is Gce Model Questions Vol1 2024 Biology Question 32. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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