Download Cell respiration powerpoint cellular_respiration_

What are the stages of cellular
respiration?
► Glycolysis
► Citric
acid cycle/ krebs cycle
► Oxidative phosphorylation
Citric acid cycle
Transition between glycolysis and
citric acid cycle
Things to remember
►1
ATP is made per turn of the cycle (per
pyruvate)
► 2 CO2 are made (all the carbons are gone
that started in the glucose)
► 3 NADH and 1 FADH2 are made
CellularRespiration.mpg
Oxidative
phosphorylation activity
Check for understanding
(you can use your book)
Starting
molecule
1. Glycolysis
Transition step
2.Citric acid cycle
(aka Krebs)
3.Oxidative
phosphorylation
End
Product
Location
How much
ATP was
produced?
How much
NADH or
FADH2 ?
Check for understanding
(you can use your book)
How much
ATP was
produced?
How
much
NADH or
FADH2 ?
2
2 NADH
2 pyruvate 2 Acetyl
Mitochondrial
co-A, 2CO2 matrix
None
2NADH
2.Citric acid cycle
(aka Krebs)
2 Acetyl
Co-A
4 CO2
Mitochondiral
matrix
2
6 NADH, 2
FADH2
3.Oxidative
phosphorylation
Electrons
shuttled
by NADH
or FADH2
ATP
Inner
membrane of
mitochondira
32-34
Not
applicable
1. Glycolysis
Transition step
Starting
molecule
End
Product
Location
1 glucose
2 pyruvate Cytosol
Cellular respiration
Something to ponder
► What
about the fats and proteins that we
eat… can we get energy from them too?
Fermentation
FERMENTATION WORKSHEET
Review
Cellular Respiration
C6H12O6 + 6O2
6 Co 2 + 6H2O
Photosynthesis
6 Co 2 + 6H2O + light
C6H12O6 + 6O2
►a.
In which equation is energy stored?
►b. Where does the energy come from?
►c. How is the potential energy stored?
►d. In which equation is energy
released?
►e. What is the stored form of energy
used in cell respiration?
►f. How is that energy released in a
stepwise fashion?
►
►
►
►
►
a. In which equation is energy stored? (photosynthesis
gathers and stores potential energy when the sun is
shining)
b. Where does the energy come from? (the sun; UV
radiation)
c. How is the potential energy stored? (in the form of
carbohydrates, which can be modified to form other
organic molecules)
d. In which equation is energy released? (cell respiration)
e. What is the stored form of energy used in cell
respiration? (glucose usually, but other organic molecules
can be used instead)
►
f. How is that energy released in a stepwise fashion? (one
molecule of glucose is used to form 36-38 ATP molecules,
each of which can go on to fuel different reactions)