Chapter 2 / 7 short lessons
Biomolecules: structure explains function
Build carbohydrates, lipids and proteins from their units, then use bonds and shape to explain their roles.
H1 Biology / 8876 / 2027 syllabus
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Starch and cellulose are both made from glucose. Why do they do different jobs?
Lessons
0 of 7 marked as readAlpha-glucose and beta-glucose
Describe the structural distinction and relevant properties of the two glucose forms.
About 4 minStarch stores; cellulose supports
Explain starch and cellulose structure, bond formation and hydrolysis in relation to their roles.
About 6 minOne glycerol, two different lipid designs
Describe glycerol, fatty acids, ester bonds, triglycerides and phospholipids in relation to their roles.
About 6 minJoin amino acids in a particular order
Describe amino acid structure and peptide-bond formation and hydrolysis.
About 5 minFour levels of protein structure
Explain primary, secondary, tertiary and quaternary structure and the interactions that maintain shape.
About 6 minWhen protein shape changes
Explain the effects of temperature and pH on protein structure.
About 5 minHaemoglobin carries oxygen reversibly
Relate haemoglobin molecular structure to oxygen transport.
About 5 minWhat you will be able to do
- Connect monomers and bonds to larger molecules.
- Explain storage, support and membrane roles from structure.
- Relate protein folding and haemoglobin structure to function.
Spaced review
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