Cellular
Respiration –
Aerobic,
Anaerobic, &
Fermentation
Mr. Banwart
Biology
Photosynthesis & Respiration

Oxygen & Cellular Respiration
Cellular
Cellular
Respiration
respiration has
2 paths
 Aerobic
oxygen
present
Anaerobic
Aerobic
Glycolysis
Krebs
Cycle
Fermentation
electron
chain
 With
 Anaerobic
 without
present
oxygen
Aerobic
If
oxygen is
present…
 Glycolysis
runs
and the products
are moved onto
the Krebs cycle &
the electron
transport chain
Anerobic
If
oxygen is
not present…
 Glycolysis
can
continue
through the
process of
fermentation
 2 types
 Lactic
 alcoholic
Lactic Acid Fermentation
Lactic
acid
fermentation
 Used
by most
organisms to
produce ATP
without the
presence of
oxygen
Alcoholic Fermentation
Alcoholic
fermentation
 Used
by yeast
and some other
microorganisms
 This process is
used to make
alcoholic drinks
Fermentation and an oxygen
debt
Lactic
fermentation can only
provide so much energy…
 After
90 seconds, oxygen must be used
to create more ATP
 This
is why you huff and puff after longer
exercises
 Your
body is trying to get enough oxygen to
replenish ATP stores
Graph Reading and analysis
Use
the
graph to
answer the
following
questions
Graph Reading and analysis
As
the
exercise
difficulty
increased,
what
happened
to oxygen
uptake?
Graph Reading and analysis
Between
what level
of difficulty
did the
uptake
reach 2?