Name ____________________________________________________________
Fill in the blank.
Words from the word bank may be used more than once or not at all
2 pts. each
Word Bank
Pyruvate
NAD+
NADH
NADP+
NADPH
Coenzyme A
Acetyl-CoA
glucose
CO2
oxygen
Water
ATP
Phosphate
ADP
ATP Synthase
electrons
mitochondrial matrix
FAD
FADH2
H+
outer membrane
Intermembrane Space
inner membrane
electron transport chain
Cytoplasm
lactic acid
Krebs cycle
Ethanol
glycolysis
Cellular respiration begins with the process of _____glycolysis___________.
To get this process
started 2 molecules of ________ATP___________________ is used to add a phosphate to
each end of a ____glucose_______________. This occurs a second time, destabilizing this
molecule which splits in half forming two, three carbon molecules. A reaction occurs in which
a molecule of ___NAD+______ takes electrons from this three carbon molecule forming
_____NADH____________ . Energy from this reaction is used to add another phosphate to
the other end of the three carbon molecule. Now the phosphates are removed from the 3
carbon molecules forming 4 molecules of ___ATP______ and the 3 carbon molecule
_______pyruvate______________
During the next phase of cellular respiration ( ___________Krebs cycle___________)
_____pyruvate_____________ is moved into the _____mitochondrial matrix__ and is converted
into ____acetyl-CoA______. During this conversion a molecule of ______NADH_________
and ________CO2_______ are produced. The ___CO2______ is a waste product that will
leave the cell. The _______NADH______________________ is an electron carrier that will go
to the _____electron transport chain_____. In the Krebs cycle _____ATP______ is produced
by substrate-level phosphorylation. 2 more molecules of the waste product
______CO2_______ are produced, and the electron carriers ____NADH___________ and
___________FADH2___________ are produced.
The final stage of cellular respiration is the ____Electron transport chain___. Electrons from
__NADH______ are given to the first protein in the chain. Energy from the moving
____electrons_____ is used to pump _________H+________________________________
into the ___intrermembrane space__________ causing them to become highly concentrated.
These electrons are taken away at the end of the chain by ______oxygen_________ forming
__________water___________. The concentrated _____H+__________ are allowed to flow
into the ________matrix_____________ through a molecule of ______ATP synthase_____.
The energy released from this process is used to attach __ADP____________ and
_______phosphate________ to make ____ATP_______