Aerobic Cellular Respiration Flashcards
ATP
adenosine triphosphate, a high energy molecule that, when broken down, provides energy for cellular processes
acetyl-CoA
the product of the link reaction where pyruvate is conjugated to coenzyme A, creating the primary input into the Krebs cycle. This reaction occurs in the cytosol
aerobic cellular respiration
cellular respiration that occurs in the presence of oxygen. Involves three stages, during which glucose and O2 are converted into ATP, CO2, and water
ATP synthase
an enzyme in the inner mitochondrial membrane that uses the concentration gradient of H+ to synthesise ATP from ADP and Pi
biochemical pathway
a series of enzyme-catalysed biochemical reactions in which the product of one reaction becomes the substrate of the next reaction. Also known as a metabolic pathway
glycolysis
the first stage of aerobic cellular respiration in
which glucose is converted to two
pyruvate molecules
Krebs cycle
the second stage of aerobic cellular respiration, where multiple reactions occur to create ATP, NADH, FADH2, and the waste
product CO2. Also known as the citric acid cycle or TCA cycle
Electron transport chain
the third stage of aerobic cellular
respiration, in which a series of
protein complexes embedded
in the inner membrane of a
mitochondrion harness the stored
energy in NADH and FADH2 to
generate large amounts of ATP
Whats the use of oxygen
Electron acceptor (krebs cycle and ETC cant occur without oxygen)
Sustainablilty and Speed
can continue indefinitely, slow
Which Stages produc CO2 as awaste product
The Krebs Cycle (turn 1 acetyl COA ino 2 CO2)