Biology: Life on Earth

Chapter 3: Biological Molecules

Group Activity

Work in groups of three or four to play "molecular 20 questions." Each of you should select a molecule important for life (water, oxygen, carbohydrate, sugar, protein, amino acid, nucleic acid, DNA, RNA, lipid, phospholipid, cholesterol, and so on) without telling the others in the group. Then, the others in the group can ask "yes-or-no" type questions to try to identify each molecule.



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