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April 27, 2015
Lesson 19.2: Photosynthesis
(Unlock) Essential Question:-How does photosynthesis compare to cellular respiration?
Learning Target(s):-Explain how photosynthesis compares to cellular respiration.
Photosynthesis
Are plants autotrophs or heterotrophs? Explain.
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I. Photosynthesis occurs in chloroplastA. (Photo = light Synthesis = Put together)
Light puts together glucose
B. Directly and indirectly produces food for all organisms
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C. Removes carbon dioxide from and adds oxygen to atmosphere
How is chlorophyll like a solar cell?
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D. Reactions: a. Light-Dependent:
-light energy splits H2O into O and H -O released as waste product
b. Light-Independent -CO2 and H combine to make sugar
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E. Chemical Formula Equation: Light Energy + 6 CO2 + 6 H2O C6H12O6 + 6 O2
Carbon Dioxide Water Glucose (sugar) Oxygen
Raw Materials/Reactants
Products
YieldsNot a material but used
in reaction
Where do the raw materials for photosynthesis come from?
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A
B
D
C
E
G F
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II. Cellular Respiration occurs in mitochondria A. Break down food (glucose) for energy B. Provides plants with CO2
What is the connection between respiration and breathing?
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C. Chemical Formula Equation: C6H12O6 + 6 O2 6 CO2 + 6 H2O + Energy Glucose (sugar) Oxygen Carbon Dioxide Water
Raw Materials/Reactants
ProductsYields
Where do the raw materials for respiration come from?
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A B C
D E
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Autotrophs)might)survive)when)heterotrophs)cannot,)because)autotrophs)are)able)to)_____.)
A.#reproduce#
B.#become#resistant#
C.#exist#without#respira7on#
D.#make#their#own#food
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III. Comparing 2 Energy Processes
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Photosynthesis Respiration
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Why does cellular respiration add carbon dioxide to the atmosphere, but photosynthesis does not?
0 I get it! I know that during photosynthesis, cells ...
0 I need extra help with ...
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Science Quiz: Photosynthesis
1. 2.
5. 6. 7.
8. 9.
3.
4.
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Science Quiz: Photosynthesis and Respiration
1. In which organelle does photosynthesis take place?
2. In which organelle does respiration take place?
3. Does the following equation pertain to photosynthesis or respiration?Light Energy + 6 CO2 + 6 H2O C6H12O6 + 6 O2
4. What are the products of respiration?
5. How many hydrogen atoms are there in H2O?
6. How many hydrogen atoms are there in 6H2O?
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7.
_8_ + _9_
_10_ + _11_