Chapter Six: An Intro to Metabolism - Part Two Flashcards
what is metabolism?
the totality of an organism’s chemical reactions
what is a metabolic pathway?
they begin with a specific molecule and ends with a product. each step is catalyzed by an enzyme.
what are the products from the metabolic pathway used for?
to regulate the system
explain metabolic pathway diagram.
notes
what are catabolic pathways?
they release energy by breaking down complex molecules into simple compounds
what is an example of a catabolic pathway?
cellular respiration. the breakdown of glucose in the presence of oxygen
what is an anabolic pathway?
consume energy to build complex molecules from simpler ones
what is an example of an anabolic pathway?
the synthesis of protein from amino acids
what does a catabolic pathway in a cell release?
free energy in a series of reactions
what is anaerobic vs. aerobic?
process that does not require the presence of oxygen compared to a process that requires the presence of oxygen
what does ATP stand for?
adenosine triphosphate
what is ATP made of?
composed of a ribose sugar, adenine, and three phosphate groups
how are the bonds between phosphate groups broken?
hydrolysis
how is energy released from ATP?
when the terminal phosphate bond is broken. it is released little by little.
what is ATP similar to in structure?
a nucleotide
