7.3 Flashcards
Define metabolism.
Breaking down food into usable energy.
Define anabolic.
Making larger molecules out of smaller ones.
Define catabolic.
Breaking down larger molecules into smaller ones.
Define exergonic.
Release more energy than used.
Define endergonic.
Consumes more energy than it releases.
Define hydrolysis.
Breaking apart molecules with H2O.
Define synthesis.
Putting together molecules by taking away H2O.
What is the ATP cycle?
Phosphate is removed from unstable ATP to make stable ADP.
What is the difference in energy used or released between reactants and products of exergonic and endergonic reactions?
In exergonic reactions, the energy released is more than the energy required for the reaction to happen. In endergonic reactions, the energy required is more than the energy released.
Are anabolic and catabolic reactions exergonic or endergonic?
Anabolic reactions are endergonic, catabolic reactions are exergonic.
Are hydrolysis and dehydration synthesis anabolic or catabolic reactions?
Hydrolysis is a catabolic reaction, dehydration synthesis is an anabolic reaction.
What parts of the ATP cycle are exergonic, anabolic, endergonic, or catabolic?
The synthesis of ATP is anabolic and endergonic, the removal of the phosphate group is endergonic, protein synthesis is anabolic and endergonic, making ADP is exergonic and catabolic.
What is an example of an exergonic reaction being linked to an endergonic reaction? Why do they have to happen in that order?
Food being digested and then the energy from that being used is an example of an exergonic reaction being linked to an endergonic reaction. They have to happen in that order because the exergonic reaction releases enough energy for the endergonic reaction to take place.
