Cellular Respiration
November 16
Do Now
• Collect returned assignments (in hanging
folders)
• Pick up a new tracker
• Begin working on today’s warm-up:
What is aerobic exercise?
Upcoming assessments
• Individual! Quizlet on Tuesday/Wednesday
– Food webs & Energy flow
– Photosynthesis
• Individual! Quest on Monday/Tuesday
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Food webs & Energy Flow
Photosynthesis
Cellular Respiration
Carbon Cycle
1 question recycled from Quiz 1
Photosynthesis & Energy Flow Concept
Check
Photosynthesis & Energy Flow Concept
Check
• Where do plants get their energy?
Photosynthesis & Energy Flow Concept
Check
• Where do plants get their energy?
Photosynthesis & Energy Flow Concept
Check
• What is the equation for photosynthesis?
Photosynthesis & Energy Flow Concept
Check
• What is the equation for photosynthesis?
Water + Carbon Dioxide + Energy  Sugar + Oxygen
+
+

+
Photosynthesis & Energy Flow Concept
Check
• Where do consumers (heterotrophs) get their
energy?
Photosynthesis & Energy Flow Concept
Check
• Where do consumers (heterotrophs) get their
energy?
– From the food
they eat!
Photosynthesis & Energy Flow Concept
Check
• What happens to the energy available to an
organism?
Photosynthesis & Energy Flow Concept
Check
• What happens to the energy available to an
organism?
– MOST of the energy they use
– SOME of the energy moves into the atmosphere
as heat
– 10% of the energy is stored in plant tissues
Photosynthesis:
Storing energy from the sun in sugar
Photosynthesis:
Releasing energy in sugar to power life
Cellular respiration::
Releasing energy in sugar to power life
Objective
By the end of class, students will be able to:
• Compare and contrast photosynthesis
and cellular respiration.
Cellular respiration takes place in
mitochondria
Inputs of cellular respiration: sugar
Inputs of cellular respiration: sugar
Return to the warm-up
• What is aerobic exercise?
Inputs of cellular respiration: oxygen
Outputs of cellular respiration: energy
Outputs of cellular respiration: carbon
dioxide
Oxygen
Carbon
Oxygen
Outputs of cellular respiration: water
Oxygen
Hydrogen
Hydrogen
Equation of cellular respiration
Sugar + Oxygen  Energy + Carbon Dioxide + Water
+
INPUTS

+
+
OUTPUTS
What is the relationship between
the equations for photosynthesis
and cellular respiration?
Who uses cellular respiration?
Who uses cellular respiration?
• Every organism with access to oxygen
– Animals AND Plants
Organisms without access to oxygen
break down sugar for energy by
fermentation
• Fermentation is less efficient
– (less energy per molecule of sugar)
Fermentation results in
alcohol or lactic acid
Humans can use fermentation during
anaerobic exercise
Lactic acid in
your muscles
makes you
sore
Muscles specialized for aerobic and
anaerobic activity explain dark and
light meat in turkey.
http://www.slate.com/articles/life/the_spectator/2010/11/the_unbearabl
e_whiteness_of_white_meat.html
Compare and contrast photosynthesis
and cellular respiration
Exit ticket
• How are the outputs (products) of
photosynthesis related to the inputs
(reactants) of cellular respiration?