AS-Level Biology Practice Questions - AS-Level Biology (AQA 7401 Edexcel 8BN0 OCR H020) Exam

Why are phospholipids able to form a bilayer in cell membranes?

They have a hydrophilic phosphate head and two hydrophobic fatty acid tails They are completely hydrophilic so they dissolve in water They are completely hydrophobic so they float on water They contain ester linkages that lock them in place

Correct Answer:

They have a hydrophilic phosphate head and two hydrophobic fatty acid tails

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