link reaction Flashcards
where does the link reaction take place
fluid filled mitochondrial matrix
is atp required in the link reaction
no
what does decarboxylation mean
the removal of the carboxyl group from a substrate molecule
what does it mean if pyruvate is dehydrogenated and decarboxylated
it has had its hydrogen atoms and carboxyl group removed
what enzyme catalyses the dehydrogenation of pyruvate
pyruvate dehydrogenase
what are the steps of the link reaction
1- the carboxyl group is removed from pyruvate.
2-acetyl group is produced due to the decarboxylation and dehydrogenation
3-acetyl group combines with coenzyme A to become acetyl CoA.
4- The coenzyme NAD becomes reduced.
why is pyruvate an important molecule in respiration
Pyruvate contains a substantial amount of chemical energy that can be further utilised in respiration to produce more ATP
what are the products of the link reaction
2 co2
2 reduced nad
2 acetyl coa
how many carbon dioxide atoms are produced from the link reaction
2
what reacts with pyruvate at the start of the link reaction
pyruvate dehydrogenase
what carbon compound is the product of this reaction, acetyl CoA
2 carbon compound
how many molecule of ATP are produced per pyruvic acid
0, no atp is necessary or produced.
