Biological Molecules: Class 9 Biology Worksheet

Carbohydrates give quick energy, proteins built from amino acids handle growth and repair, and lipids store energy for the long term and insulate the body. Glucose is a monosaccharide, while starch and glycogen are polysaccharides. This Class 9 worksheet asks four-option multiple-choice questions on these molecules and their building blocks, and it is marked out of 15.