GLYCOLYSIS
Each step of the glycolytic pathway requires the use of a specific ______ ___
______. This
process occurs in the _________ ________ of the cell and does not require ________ _____.
Thus, it is part of __________
_______ respiration.
1. The first step of glycolysis is “energy-requiring”. This energy is made available when an
_____ ____ molecule donates a ______
________ group to glucose in a
_____________
______ reaction. The major products of this reaction are
_________________
_____ and _____
______.
2. The _____________
_____ is converted to ______________________
3. A second ____ _______ is used to transfer a ______
Now, the molecule ____________________
____.
__________ group to the sugar.
_____ has been formed.
4,5. The backbone splits apart to form two 3-carbon molecules of
_________________________
___. One comes a temporary DHAP molecule.
6. Each molecule of ________
_______ (called an electron or energy carrier) reacts with a
molecule of _______
________. In this reaction, 2 _____
___________ and
+
a ____
__________ are gained by NAD converting it to NADH (thus 2 NADH are formed).
Since NAD+ gained electrons (and hydrogen), it has been ______
_____________.
Since G3P lost electrons (and hydrogen), it has been ______________
____. As well,
each G3P gains an inorganic ____________
______ (Pi) group which was
floating around in the cytoplasm.
This produces two molecules of ___________________________________________
_.
7. Each molecule of BPG donates a phosphate group to an ____
______ molecule
producing two molecules of ____
______. Such a transfer from a glycolysis intermediate
to ADP is called “
______________________” (enzymatically driven ATP
production). This step of glycolysis is “energy-releasing” since ATP was made. This leaves two
molecules of ___________________
____.
8. Each 3PG is converted into _________________________
9. Each 2-PGA releases a water molecule leaving two molecules of
_________________
______________ or
_.
.
10. Each PEP performs “substrate-level phosphorylation” by donating a
_________
_____________ group to an ___
______ producing two more
__________
____. This leaves two 3-carbon molecules of _________
______________.
Net Products of Glycolysis:
________ ATP __________ NADH ______________ pyruvate