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Review Guide
Aerobic Cell Respiration
• The process by which the chemical
energy of "food" molecules [glucose]
is released and partially captured in
the form of ATP.
CO2
Glucose or
Other
Organic
Molecules
ATP
Mitochondria
H 2O
Cells types that have and don’t
have Mitochondria
Eukaryotes – Cells that have a nucleus and
membrane bound organelles have
mitochondria
Cells that are eukaryotes include:
• Animal cells
• Plant cells
• Fungus cells
• Protist cells like algae
Cells that are not eukaryotes are called
Prokaryotes and these include bacteria.
Respiration can be…
AEROBIC
-O2 is required.
-process completed
inside the
mitochondria
-produces
significantly more
ATP’s.
ANAEROBIC
-O2 is NOT required.
-process completed in
the cytoplasm
-produces
significantly less
ATP’s.
Overview of Aerobic Respiration
C6H12O6 + 6O2
If you reversed the
direction of the
reaction, then
which process
would be involved?
6CO2 + 6H2O + ATP
Three stages make up Cell
Respiration [Aerobic Pathway]:
I. Glycolysis
-occurs in the
cytoplasm
-does not require
O2
III. Electron
Transport Chain
-occurs in the
mitochondria
•Requires oxygen
-most number of
ATP’s produced
II. Krebs Cycle
-occurs in the
mitochondrion
•Requires oxygen
-C in glucose is
released as CO2
-high-energy electrons
produced via the
molecule NADH and
FADH2
Energy in cell is stored in
these molecules:
NADH
FADH2
ATP
Where it all happens:
The enormous number
of “infoldings” inside
the mitochondria
provides a great amount
of surface area for the
reactions in CR.
Krebs Cycle
Electron transport
chain
What is the effect of adding more and more sugar [glucose] to the rate of
cell respiration?
The amount of ATP produced is directly proportional to the _____?_____.
Which molecule is represented by “A”?
Which other products is represented by “B”?
How can we tell that the process happening is NOT
photosynthesis?