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IB Biology SL B1.1.13 Non Polar Steroids Questions

Practise IB Biology SL B1.1.13 by identifying oestradiol and testosterone as cholesterol-derived steroids and explaining how non-polarity helps them cross bilayers.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Identify oestradiol and testosterone as cholesterol-derived steroid hormones with four fused carbon rings.
  • Explain how non-polar steroids pass through the hydrophobic core of phospholipid bilayers.

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