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Slide 2 of 21
Big Picture
SC.912.L.18.9 - Explain the interrelated nature of photosynthesis and cellular respiration.
What is photosynthesis?
What is cellular respiration?
How are they interrelated?
Slide 3 of 21
Photosynthesis
Photosynthesis Photo- = light -synthesis = put stuff together Light Sugars
In = Sunlight, Water, & Carbon Dioxide (CO2)
Out = Glucose (Sugar) & Oxygen (O2)
Overall - CO2 + H2O + (Sunlight ENERGY) Glucose + O2
CO2 + H2O C6H12O6 + O2
Slide 4 of 21
Respiration
Respiration Glucose Energy (ATP)
In = Glucose (Sugar) & Oxygen (O2)
Out = ATP (ENERGY), Water, & Carbon Dioxide (CO2)
Overall -
Glucose + O2 CO2 + H2O + ATP (ENERGY) C6H12O6 + O2 CO2 + H2O
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Check knowledge
1. What is the function of the chloroplast?
2. What goes into the chloroplast?
3. What are the reactants of photosynthesis?
4. Where do each of the reactants come from?
5. What is the overall reaction of photosynthesis?
Slide 7 of 21
Check knowledge ANSWERS
1. What is the function of the chloroplast? Convert sunlight energy into sugars
2. What goes into the chloroplast? Sunlight, carbon dioxide, and water
3. What are the reactants of photosynthesis? Sunlight, carbon dioxide, and water
Slide 8 of 21
Check knowledge ANSWERS2
4. Where do each of the reactants come from? Sunlight – leaves absorb it CO2 – stomata on the leaves
H2O – roots from soil
5. What is the overall reaction of photosynthesis? CO2 + H2O C6H12O6 + O2
Carbon Dioxide + Water Sugars + Oxygen
Slide 9 of 21
Check knowledge 2
What is the function of the mitochondrion?
What goes into the mitochondrion?
What are the reactants of respiration?
Where do each of the reactants come from?
What is the overall reaction of respiration?
Slide 10 of 21
Check knowledge 2 ANSWERS
What is the function of the mitochondrion? Convert sugars (food) to energy (ATP)
What goes into the mitochondrion? Glucose and oxygen
What are the reactants of respiration? Glucose and oxygen
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Check Knowledge 2 ANSWERS2
Where do each of the reactants come from? Glucose – food for animals or chloroplasts for plants Oxygen – lungs/gills/skin for animals OR stomata for
plants
What is the overall reaction of respiration? C6H12O6 + O2 CO2 + H2O
Slide 12 of 21
Do you know your info?
SC.912.L.18.7 - Identify the reactants, products, and basic functions of photosynthesis.
SC.912.L.18.8 - Identify the reactants, products, and basic functions of aerobic and anaerobic cellular respiration. Aerobic vs. anaerobic will be discussed later
Slide 13 of 21
Photosynthesis and respiration related?
Photosynthesis produces _______, and is sent to the mitochondrion to be converted into _________.
Gases Photosynthesis (plants) produce __ Animals use the __ (make ATP) then
produce ___ Plants use the ___ (make sugars)
then produce __
Slide 14 of 21
Photosynthesis and respiration related?
Photosynthesis produces sugars or glucose, and is sent to the mitochondrion to be converted into energy or ATP.
Gases Photosynthesis (plants) produce O2
Animals use the O2 (make ATP) then produce CO2
Plants use the CO2 (make sugars) then produce O2
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Chemical Interrelation
Equation for Photosynthesis CO2 + H2O C6H12O6 + O2
Equation for Respiration C6H12O6 + O2 CO2 + H2O
Reactants for photosynthesis are the products of ________
Products of photosynthesis are the reactants of ______
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Chemical Interrelation
Equation for Photosynthesis CO2 + H2O C6H12O6 + O2
Equation for Respiration C6H12O6 + O2 CO2 + H2O
Reactants for photosynthesis are the products of respiration
Products of photosynthesis are the reactants of respiration
Slide 18 of 21
Which one?
Which stores energy? Photosynthesis
In what form? Glucose or sugars
Which releases energy? Respiration
In what form ATP
Slide 19 of 21
Objectives
** Students will explain how the products of photosynthesis are used as reactants for cellular respiration and vice versa.
** Students will explain how photosynthesis stores energy and cellular respiration releases energy.
** Students will connect the role of adenosine triphosphate (ATP) to energy transfers within the cell.
Slide 20 of 21
Aerobic vs. Anaerobic
Aerobic – requires O2
Anaerobic – NOT requires O2
Aerobic respiration = 36 ATP per glucose
Anaerobic respiration = 2 ATP per glucose
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Anaerobic Respiration
Can be called Fermentation as well as anaerobic respiration
Lactic Acid fermentation Glucose 2 ATP + 2 Lactic acid Responsible for the “burn” in your muscles when weight
lifting Yogurt & cheese
Alcoholic fermentation Glucose 2 ATP + 2CO2 + 2 Alcohol Bread, wine, & biofuel