Glycolysis Flashcards
From which two pathways can ATP be produced?
Substrate level phosphorylation ATP Synthase (oxidative phosphorylation)
What molecules are involved in substate level phophorylation?
Enzyme
A molecule with a high-energy phosphate bond
ADP
How is called the internal mitochondral liquid?
Mitochondral matrix
Where are located ATP synthase molécules?
In between the intermembrane space and the mitochondral matrix
What enzyme catalizes the transformation of glucose to glucose 6-phosphate?
Hexokinase
What enzyme catalizes the transformation of glucose 6-phosphate to fructose 6-phosphate?
Phosphoglucose isomerase
What enzyme catalizes the transformation of fructose 6-phosphate to fructose 1,6-biphosphate?
Phosphofructokinase
Aldolase cleaves fructose 1,6-biphosphate into 2 isomers. What are the 2 products?
Dihydroxyacetone phosphate (changed in G3P by isomerase) Gycealdehyde 3-phosphate
What is the end product of glycolysis?
Pyruvate
What are the 2 possible pathways that pyruvate can undertake and under what conditions?
Fermentation
Aerobic cellular respiration
Into what is transformed pyruvate during pyruvate oxidation?
Acetyl coA (a CO2 goes away and coenzyme A takes its place)
What is the whole purpose of gycolysis?
Harvest energy hidden in glucose bonds through electron transfer and dehydrogenation
What is the complete name of NAD+, an important cofactor?
Nicotinamide adenosine dinucleotide
Why are there so many steps in glycolysis? Why not oxidize oxygen directly?
This way the harvesting efficiency is greater
What is the net ATP yield for gycolysis?
2 ATP
