respiration Flashcards
what are the 4 stages of aerobic respiration
glycolysis
link reaction
Krebs cycle
oxidative phosphorylation
what are the two types of respiration
anaerobic and aerobic
what are the main differences between anaerobic and aerobic respiration
aerobic produces more ATP and produces water and CO2
anaerobic produces lactate in mammals and ethanol in plants as well as CO2
why is ATP a good energy source for cells
little energy lost as heat
can be rapidly resynthesized
where does oxidative phosphorylation occur
in the cristae
where does glycolysis occur
in the cytoplasm
where does the kreb’s cycle
in the mitochondrial matrix
where does in the link reaction occur
in the mitochondria
outline the link reaction
pyruvate:
decarboxylated and dehydrogenated to form acetate
acetate then combines with coenzyme A
to form acetyl coenzyme A
what are the products of glycolysis
net 2x ATP overall 4xATP
2x reduced NAD
2 x pyruvate
what are the products of the link reaction per glucose molecule
2 x CO2
2 x rNAD
2 x acetylcoenzyme A
what are the products of the kreb’s cycle
coenzyme A oxaloacetate 2 x CO2 1 x ATP 3 X rNAD 1 X rFAD
name two differences of anaerobic respiration in plant and animal cells
in plant cells pyruvate is decarboxylated and dehydrogenated and ethanol is produced
in animal cells pyrvuate is only dehydrogenated and lactate is produced
what is the affect of mitochondrial disesases
muscle weakness
as less ATP produced so anaerobic respiration occurs to make up for ATP shortage so lactate produced
causing muscle weakness
