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CELLULAR RESPIRATION NOTES
PYRUVIC ACID
(Krebs Cycle)
Location:
(ETC)
Location:
CELLULAR RESPIRATION
Write “cell respiration” down the right
side of your paper
Cellular Respiration takes place in two
locations:
Cytoplasm (Glycolysis)
Mitochondria (Krebs Cycle & ETC)
CELLULAR RESPIRATION
Glycolysis
Occurs in the cytoplasm.
Write this as the location of glycolysis in
the box on your paper.
PYRUVIC ACID
(Krebs Cycle)
Location:
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Glycolysis
1. Glucose enters the cytoplasm,
activating glycolysis.
Draw an arrow from glucose to glycolysis
Where did this glucose come from!?!
PYRUVIC ACID
(Krebs Cycle)
Location:
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Glycolysis
2. Glucose is broken down into pyruvic
acid (pyruvate).
Draw an arrow from glycolysis to pyruvic acid
Pyruvic acid is used to activate the Krebs
cycle
Draw an arrow from pyruvic acid to the Krebs
cycle
PYRUVIC ACID
(Krebs Cycle)
Location:
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Glycolysis
3. NADH is made and is used to activate
the electron transport chain.
Draw an arrow from glycolysis to NADH
Draw an arrow from NADH to ETC circle
PYRUVIC ACID
(Krebs Cycle)
Location:
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Glycolysis
4. 2 ATP are produced from glycolysis.
Color ATP orange
Draw an arrow from glycolysis to ATP
PYRUVIC ACID
(Krebs Cycle)
Location:
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Citric Acid Cycle (Krebs Cycle)
Write this title above “Krebs Cycle”
Location: Occurs in the matrix of the
mitochondria
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Citric Acid Cycle (Krebs Cycle)
1. Pyruvic Acid enters the mitochondria
and activates the Citric Acid Cycle.
Draw an arrow from Pyruvic Acid to the Citric
Acid Cycle
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Citric Acid Cycle (Krebs Cycle)
2. Carbon dioxide is given off and leaves
the mitochondria.
Draw an arrow from Citric Acid Cycle to
Carbon Dioxide
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Citric Acid Cycle (Krebs Cycle)
3. Energy carrying molecules NADH and
FADH2 are produced and used to
activate the Electron Transport Chain.
Draw an arrow from Citric Acid Cycle to NADH
and FADH2.
Draw an arrow from NADH and FADH2 to the
ETC.
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Citric Acid Cycle (Krebs Cycle)
3. 2 ATP are made as a result of the
Citric Acid Cycle.
Color ATP orange
Draw an arrow from Citric Acid Cycle to ATP.
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
(ETC)
Location:
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Electron Transport Chain (ETC)
Write the full name in the ETC circle
Location: Membrane of the mitochondria
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
Electron Transport Chain (ETC)
Location:
Mitochondria Membrane
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Electron Transport Chain (ETC)
1. NADH and FADH2 activate the ETC
Draw an arrow from NADH and FADH2 to
ETC
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
Electron Transport Chain (ETC)
Location:
Mitochondria Membrane
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Electron Transport Chain (ETC)
2. Oxygen enters into the mitochondria
Draw an arrow from Oxygen to ETC
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
Electron Transport Chain (ETC)
Location:
Mitochondria Membrane
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Electron Transport Chain (ETC)
3. Water is given off and leaves the
mitochondria
Color the water blue
Draw an arrow from ETC to water
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
Electron Transport Chain (ETC)
Location:
Mitochondria Membrane
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Electron Transport Chain (ETC)
4. 34 ATP are produced in the ETC
Color ATP orange
Draw an arrow from ETC to ATP
PYRUVIC ACID
Citric Acid Cycle (Krebs Cycle)
Location:
Mitochondria Matrix
Electron Transport Chain (ETC)
Location:
Mitochondria Membrane
GLYCOLYSIS
occurs in cytoplasm
CELLULAR RESPIRATION
Generally speaking, what ENTERS
the cell and is USED for cell
respiration?
Glucose and Oxygen
CELLULAR RESPIRATION
Generally speaking, what is
PRODUCED and LEAVES the
mitochondria as a result of cellular
respiration?
Carbon Dioxide, Water and ATP
CELLULAR RESPIRATION
So how would we write this as a word
equation?
Glucose + Oxygen Carbon Dioxide + Water + ATP
CELLULAR RESPIRATION
So how would we write this as a chemical
equation?
C6H12O6 + 6O2 6CO2 + 6H2O + ATP
CELLULAR RESPIRATION
What do you notice about the chemical
equations for photosynthesis and cell
respiration???
6CO2 + 6H2O + light energy C6H12O6 + 6O2
C6H12O6 + 6O2 6CO2 + 6H2O + ATP
CELLULAR RESPIRATION
What do you notice about the chemical
equations for photosynthesis and cell
respiration???
6CO2 + 6H2O + light energy C6H12O6 + 6O2
C6H12O6 + 6O2 6CO2 + 6H2O + ATP
CELLULAR RESPIRATION
How many ATP are produced at each step
(Glycolysis, Krebs, ETC)??
What is the total # of ATP produced?
6CO2 + 6H2O + light energy C6H12O6 + 6O2
C6H12O6 + 6O2 6CO2 + 6H2O + ATP
