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Photosynthesis and Respiration QUIZ Study Guide
Photosynthesis equation:
reactants/raw materials
6H2O
+
(water)
+
6CO2
(carbon dioxide)
products
+
light energy

+
(sunlight)

C6H12O6
(glucose)
+
6O2
+
(oxygen)
+
energy
+
(energy)
Cellular Respiration equation:
reactants/raw materials
products
C6H12O6
+
6O2

6H2O
+
(glucose)
+
(oxygen)

(water)
+
6CO2
(carbon dioxide)
***photosynthesis and respiration have opposite equations!***
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Photosynthesis
Cellular Respiration
o the process by which a cell captures energy in sunlight
and uses it to make food
o chlorophyll- the main photosynthetic pigment in
chloroplasts; captures light energy and uses it to
power photosynthesis
o stomata- the small openings on the underside of leaves
where carbon dioxide enters a plant
o pigments- colored chemical compounds that absorb
light
o producers are the first link in any food chain and make
90% of the oxygen in the Earth’s atmosphere.
o the process by which cells obtain energy from glucose
o molecules of glucose are first broken down in the
cytoplasm
o energy from glucose is released
o the end products of respiration are energy, carbon
dioxide, and water
o Almost all living things depend on the process of
respiration to supply them with the energy they need
Respiration and photosynthesis keep the levels of carbon dioxide and oxygen in the atmosphere fairly constant.




autotroph- an organism that makes its own food
heterotroph- an organism that obtains food by eating other organisms
reactants/raw materials- start of the chemical equation
end products- end of the chemical equation
CELLULAR
RESPIRATION
water
glucose
PHOTOSYNTHESIS
light energy
water
carbon
dioxide
oxygen
oxygen
glucose
carbon
dioxide