Note that your final mark will not be saved in the system.
Respiration GapFill
You must fill all the gaps before clicking ‘Check Answers!’
The first stage of both aerobic and anaerobic respiration is . During this stage, glucose is phosphorylated to produce , which is then split into and oxidised, giving a net gain of , plus reduced NAD and ATP.
In anaerobic respiration, pyruvate is converted to in plants and fungi, or in animals.
Pyruvate is transported into the mitochondrial matrix and oxidised to during the . This molecule then combines with coenzyme A to form , which is necessary in the .
The third stage of aerobic respiration is a series of oxidation-reduction reactions which release and hydrogen in order to convert a six-carbon molecule into a four-carbon molecule and reduce the coenzymes . ATP is also produced, and the six-carbon and four-carbon molecules are regenerated in a cyclical process.
During , electrons are passed along an electron transfer chain, providing the energy which causes to accumulate outside the mitochondrial matrix and diffuse back in through ATP synthase molecules to generate ATP. They then combine with oxygen and electrons to form .