Biology : PU-CET (U.G) 2015 Panjab University Entrance Exam With Answers

The storage product of algae can be glycogen, fat, or oil, depending on the species and environmental conditions. Some species of algae store energy in the form of glycogen, a complex carbohydrate similar to starch found in plants. Other species may store energy in the form of lipids or oils, which are rich in fatty acids and are commonly used for biofuel production. Cellulose and proteins can also be important structural components of algae, but they are not typically used for energy storage.