Cellular Respiration
|
Photosynthesis
|
|
Reactants
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C6H12O6 and 6O2
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6CO2 and 12H2O and light energy
|
Requirement
of sunlight
|
Sunlight not required; cellular
respiration occurs at all times.
|
Can occur only in presence of
sunlight
|
Chemical
Equation (formula)
|
6O2 + C6H12O6 --> 6CO2 +6H2O
+ ATP (energy)
|
6CO2 + 12H2O + light -->
C6H12O6 + 6O2 + 6H20
|
Fate of
oxygen and carbon dioxide
|
Oxygen is absorbed and carbon
dioxide is released.
|
Carbon dioxide is absorbed and
oxygen is released.
|
Energy
required or released?
|
Releases energy as ATP
molecules
|
Requires energy (sunlight)
|
Main
function
|
Breakdown of food. Energy
release.
|
Production of food. Energy
Capture.
|
Chemical
reaction
|
Glucose is broken down into
water and carbon dioxide (and energy).
|
Carbon dioxide and water
combine in presence of sunlight to produce glucose and oxygen.
|
Occurs
in which organelle?
|
Mitochondria
|
Chloroplasts
|
Occurs
in which organisms?
|
Occurs in all living organisms
(plants and animals).
|
Occurs in plants
|
Similarities: 1) They are both a series of enzyme controlled
reactions
2) both can occur in plant cells and are essential for the survival of plants