1.2: Elements of Life
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Last updated 12:29 AM on 6/16/25
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5 Terms
1
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What are the 3 reasons living systems need energy?
1) Living system follow the laws of energy
2) Living systems need a constant input of energy to grow, reproduce, and maintain organization
3) Living systems mainly use the energy stored in chemical bonds
2
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Which elements are found in all classes of macromolecules?
Carbon(found in carbs, proteins, nucleic acids, and lipids)
3
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Nitrogen is found in which classes of macromolecules?
proteins and nucleic acids
4
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Phosphorus is found in which classes of macromolecules?
nucleic acids and lipids
5
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What can carbon be used to create?
carbon skeletons
Note 
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