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Glycolysis
DON’T
UNDERSTAND?
???????? o_O
LET ME
DREAK IT
DOWN 
Phase 1
 1) Glucose enters the cell is phosphorylated
buy hexokinase, thus turning ATP into sugar
which is than trapped in the cell because the
plasma membrane is impermeable to ions.
phosphorylation makes glucose more
chemically reactive.
• 2) Glucose-6-phosphate is rearranged to
convert it to its isomer (fructose-6-phosphate)
• 3) Another ATP is than invested to transfer a
phosphate group from ATP to the sugar by
phosphofructokinase.
• 4) Aldolase makes the sugar molecule split
into two different three-carbon sugars.
(glyceraldehyde-3-phosphate and
dihydroxyacetone phospate )
• 5) two isomers are now created
dihydroxyacetone phospate and
glyceraldehyde-3-phosphate.
Phase 2
Half way there do u understand it a little
bit more yet???
• 6) Triose phosphate dehydrogenase holds
onto glyceraldehyde-3-phosphate where it
than goes two reactions, the sugar is first
oxidized by the transfer of electrons from H+
to NAD+ making 2NADH. The enzyme uses the
released energy to attach a phosphate group
to the oxidized substrate.
• 7) Finally some ATP is produced the
phosphate group is transferred into ADP. For
every glucose molecule that goes through
glycolysis two ATP are produced by step 7.
• 8) Phosphoglyceromutase relocates the
remaining phosphate group to get it ready for
the next reaction.
• 9) Enolase causes a double bond to form
yielding phosphoenolpyruvate, the electrons
of substrate become rearranged to where they
now become unstable.
• 10) the last reaction produced more ATP by
changing the phosphate group from PEP to
ADP.Two more ATP are produced so now there
was four mad making a net gain of two ATP
and making 2 pyruvate.

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Glycolysis

  • 4.  1) Glucose enters the cell is phosphorylated buy hexokinase, thus turning ATP into sugar which is than trapped in the cell because the plasma membrane is impermeable to ions. phosphorylation makes glucose more chemically reactive.
  • 5. • 2) Glucose-6-phosphate is rearranged to convert it to its isomer (fructose-6-phosphate)
  • 6. • 3) Another ATP is than invested to transfer a phosphate group from ATP to the sugar by phosphofructokinase.
  • 7. • 4) Aldolase makes the sugar molecule split into two different three-carbon sugars. (glyceraldehyde-3-phosphate and dihydroxyacetone phospate )
  • 8. • 5) two isomers are now created dihydroxyacetone phospate and glyceraldehyde-3-phosphate.
  • 9. Phase 2 Half way there do u understand it a little bit more yet???
  • 10. • 6) Triose phosphate dehydrogenase holds onto glyceraldehyde-3-phosphate where it than goes two reactions, the sugar is first oxidized by the transfer of electrons from H+ to NAD+ making 2NADH. The enzyme uses the released energy to attach a phosphate group to the oxidized substrate.
  • 11. • 7) Finally some ATP is produced the phosphate group is transferred into ADP. For every glucose molecule that goes through glycolysis two ATP are produced by step 7.
  • 12. • 8) Phosphoglyceromutase relocates the remaining phosphate group to get it ready for the next reaction.
  • 13. • 9) Enolase causes a double bond to form yielding phosphoenolpyruvate, the electrons of substrate become rearranged to where they now become unstable.
  • 14. • 10) the last reaction produced more ATP by changing the phosphate group from PEP to ADP.Two more ATP are produced so now there was four mad making a net gain of two ATP and making 2 pyruvate.