Energy, Photosynthesis & Respiration

Chapter 4 Organized by FL Item Specs

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

Slide 5 of 21

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 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

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? 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

Slide 15 of 21

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 ______

Slide 16 of 21

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 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 O2

Anaerobic – NOT requires O2

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 + 2CO2 + 2 Alcohol Bread, wine, & biofuel