Photosynthesis Chemistry Worksheet With Answer Key
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Answer Key
Date:
Period:
1. Define photosynthesis
(1 p. 65)
The conversion of _Light energy_____ into__organic molecules/glucose______ in plants.
2. Write a balanced symbol equation for the process of photosynthesis.
O + Sunlight C
6CO
+ 6 H
H
O
+ 6 O
2
2
6
12
6
2
3. Glucose is a product of photosynthesis. It can be used directly in respiration, stored as starch or
converted to glucose.
a. Distinguish between the functions of starch and cellulose.
Starch:
Stores energy in plants
Cellulose:
Structural molecule in found in cell wall of plants
4. Distinguish between action and absorption spectra for photosynthesis.
Action:
Shows rate of photosynthesis at different wavelengths
Absorption:
Shows each pigments (chlorophyll a, b, and carotenoids) ability to absorb sunlight at
different wavelengths.
5. Summarize the two main stages of photosynthesis:
Input
Outcome
Light energy is used to…
Light-dependent
reactions
+
Sunlight, H
O, NADP
, ADP
NADPH, ATP, Oxygen
2
Light
+
independent
ATP, NADPH, CO
C
H
O
, NADP
, ADP
2
6
12
6
reactions
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