Energy, Photosynthesis & Respiration Chapter 4 Organized by FL Item Specs

Slide 2 of 21 Big Picture  SC.912.L 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 (CO 2 )  Out = Glucose (Sugar) & Oxygen (O 2 )  Overall - CO 2 + H 2 O + (Sunlight ENERGY)  Glucose + O 2 CO 2 + H 2 O  C 6 H 12 O 6 + O 2

Slide 4 of 21 Respiration  Respiration  Glucose  Energy (ATP)  In = Glucose (Sugar) & Oxygen (O 2 )  Out = ATP (ENERGY), Water, & Carbon Dioxide (CO 2 )  Overall - Glucose + O 2  CO 2 + H 2 O + ATP (ENERGY) C 6 H 12 O 6 + O 2  CO 2 + H 2 O

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Slide 6 of 21 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  CO 2 – stomata on the leaves  H 2 O – roots from soil 5. What is the overall reaction of photosynthesis?  CO 2 + H 2 O  C 6 H 12 O 6 + O 2  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

Slide 11 of 21 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?  C 6 H 12 O 6 + O 2  CO 2 + H 2 O

Slide 12 of 21 Do you know your info?  SC.912.L Identify the reactants, products, and basic functions of photosynthesis.  SC.912.L 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 O 2  Animals use the O 2 (make ATP) then produce CO 2  Plants use the CO 2 (make sugars) then produce O 2

Slide 15 of 21 Chemical Interrelation  Equation for Photosynthesis  CO 2 + H 2 O  C 6 H 12 O 6 + O 2  Equation for Respiration  C 6 H 12 O 6 + O 2  CO 2 + H 2 O  Reactants for photosynthesis are the products of ________  Products of photosynthesis are the reactants of ______

Slide 16 of 21 Chemical Interrelation  Equation for Photosynthesis  CO 2 + H 2 O  C 6 H 12 O 6 + O 2  Equation for Respiration  C 6 H 12 O 6 + O 2  CO 2 + H 2 O  Reactants for photosynthesis are the products of respiration  Products of photosynthesis are the reactants of respiration

Slide 17 of 21 Which one?  Which stores energy?  In what form?  Which releases energy?  In what form

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 O 2  Anaerobic – NOT requires O 2  Aerobic respiration = 36 ATP per glucose  Anaerobic respiration = 2 ATP per glucose

Slide 21 of 21 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 + 2CO Alcohol  Bread, wine, & biofuel