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CAIE A-Level Biology 2.2.7 Triglyceride Structure and Function

Practise constructing triglycerides from glycerol and three fatty acids, identifying ester bonds and linking saturation, hydrophobicity and C–H bonds to function.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • draw glycerol joined to three fatty acids by three ester bonds after condensation
  • distinguish saturated and unsaturated fatty acids from carbon–carbon double bonds
  • relate non-polar insolubility and many carbon–hydrogen bonds to storage properties

2.2.7—Triglycerides question 1

[Maximum number: 1]

What is a feature of triglyceride molecules?

A

They are hydrophobic molecules.

B

They are molecules with a single ester bond.

C

They are polar molecules.

D

They are water-soluble molecules.

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