Topic 1.2 - Elements of Life 𖦹⋆｡°✩ Flashcards
what do living systems constantly require? why
living systems need a constant input of energy. they require energy to grow, reproduce, and maintain organization
what is the law of conservation of energy
the law of energy conservation states that energy cannot be created or destroyed, only transferred
where is energy in living systems mainly stored?
in chemical bonds
what else to living systems require
an exchange of matter
what is necessary to build new molecules
atoms and molecules from the environment
✩ MEMORIZE MACROMOLECULE AND ELEMENT CHART ✩
what is used to build all biomolecules
carbon is used to build carbohydrates, proteins, nucleic acids, and lipids
what does nitrogen build
proteins and nucleic acids
what is phosphorus used to build
nucleic acids and certain lipids
what does carbon make when it bonds with other carbon atoms
a carbon skeleton to which other atoms attach
what do carbon skeletons allow for
for the creation of large and complex molecules
what can carbon containing molecules be used for
༻ they can be used to store energy
༻ they can be used for form basic cell structures
