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5.3 Hormonal coordination in humans

5.3 Hormonal coordination in humans

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In an investigation into the control of blood glucose concentration, researchers measured the blood glucose levels of four cohorts of diabetic patients 30 minutes after receiving different therapeutic interventions to correct hypoglycemia. The results were recorded in the format mean±standard deviation\text{mean} \pm \text{standard deviation}mean±standard deviation:

  • Cohort I (Glucagon injection): 5.45±0.72 mmol dm−35.45 \pm 0.72\text{ mmol dm}^{-3}5.45±0.72 mmol dm−3
  • Cohort II (Oral glucose gel): 6.12±0.39 mmol dm−36.12 \pm 0.39\text{ mmol dm}^{-3}6.12±0.39 mmol dm−3
  • Cohort III (Intravenous dextrose): 5.80±0.94 mmol dm−35.80 \pm 0.94\text{ mmol dm}^{-3}5.80±0.94 mmol dm−3
  • Cohort IV (Oral starch suspension): 4.95±0.51 mmol dm−34.95 \pm 0.51\text{ mmol dm}^{-3}4.95±0.51 mmol dm−3

Identify which cohort's result is the most precise and explain why.

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5.3 Hormonal coordination in humans Questions

  1. GCSE
  2. /Biology
  3. /5.3 Hormonal coordination in humans

62 exam-style questions on AQA GCSE Biology 5.3 Hormonal coordination in humans, covering 5.3.1 Human endocrine system, 5.3.2 Control of blood glucose concentration, 5.3.3 Maintaining water and nitrogen balance in the body, 5.3.4 Hormones in human reproduction, 5.3.5 Contraception, 5.3.6 The use of hormones to treat infertility (HT only), and 5.3.7 Negative feedback (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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