Carbohydrate — Science definition
A macromolecule made of sugars, used for quick energy and structure; its monomer is a monosaccharide (simple sugar).
Where it is taught
- Carbon & the Macromolecules of Life — Investigating the Chemistry of Life, Life Science: Biology, Grade 10
Questions using carbohydrate
Problem 1
Carbohydrate and protein each release about 17 kJ per gram, while fat releases about 38 kJ per gram. How many kilojoules does 5.0 g of fat release?
Answer and explanation
190 kJ
5.0 g × 38 kJ/g = 190 kJ, roughly twice what the same mass of carbohydrate would release.