basics
Where does glycolysis take place in the cell?
The cytoplasm
2 ATP
Glucose is split into two 3-carbon molecules. WHat are they?
pyruvate
Glyscolysis produces ATP through what process?
substrate-level phosphorylation
T or F? All organisms use glycolysis
True
What is the starting molecule of glycolysis?
Glucose
How many NADH molecules are produced per glucose?
2 NADH
What happens to glucose in the first step?
a phosphate is added (phosphorylation)
What happens to the pyruvate if oxygen is not present?
fermentation
How old is glycolysis? (in evolution)
Ancient, used by the very first cells
How many ATP are used at the beginning phase of glycolysis?
2 ATP
Total ATP made in glycolysis before subtracting the investment phase?
4 ATP
What happens in the "energy pay off" phase
ATP is made
What happens when oxygen IS present?
Enters the mitochondria to start the Krebs Cycle
Why is glycolysis fast compared to aerobic respiration?
It does not need mitochondria or O2
Glycolysis splits glucose into how many pyruvate molecules?
2 pyruvate
Why is glycolysis considered to have a "net" ATP yield
2 ATP are used ---> 4 made = leaving 2 ATP
What phrase describes glycolysis?
"splitting sugar"
What type of fermentation happens in muscles?
lactic acid fermentation
What cell type relies only on glycolysis for ATP?
Red blood cells
Is oxygen required for glycolysis?
No, it is anaerobic (generates ATP w/out O2)
What happens to NADH after glycolysis without oxygen?
Used to regenerate NAD+ through fermentation
How many steps are in glycolysis?
10 streps
What type of fermentation happens in yeast?
alcohol fermentation
What are the three main products of glycolysis?
ATP, NADH and pyruvate