The Photosynthetic Equation A Guided Tour to Understanding

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The Photosynthetic Equation-A Guided Tour to
Understanding-
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Dear Student,

• We are about to begin our unit on the process of
  photosynthesis. In order to feel confident
  discussing this topic with all of you, I need to
  know that you have mastered the basic
  photosynthetic equation. This activity will guide
  you towards understanding and remembering this
  important biological equation. Bon chance!
• Sincerely,
• Mrs. Grant

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What do you believe the purpose of photosynthesis
is?

• Please choose the choice that aligns with your
  belief
• To allow us to breathe.
• To make food for the plant.
• To let the plant have an important duty.

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Not quite.

• Although this seems very logical to us, plants
  are not carrying out photosynthesis for our
  benefit.
• Try again please

Thanks for the oxygen!
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Youve got it!

• Unlike humans who are heterotrophs, plants are
  autotrophs, which means they have to make their
  own food to survive. They make this food through
  the process of photosynthesis.
• You are ready to move on!

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The Task

• Please observe the diagram on the next slide.
  There will be 6 different areas on the diagram
  that will need to click on to find out the
  importance of that item in the photosynthesis
  process. When finished finding all 6, click on
  Check for Understanding.

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Not quite

• Plants have a specific purpose for carrying out
  photosynthesis. They dont carry out the process
  just for the sake of having a duty.
• Try again please

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Please observe the following diagram.
Check for Understanding
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The Sun

• The sun provides the energy for photosynthesis to
  take place. It is not considered a reactant,
  instead, sunlight is the energy that allows the
  photosynthetic process to take place.

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The Leaf

• The leaves contain the chloroplasts, which is
  the location where the photosynthetic process
  takes place. The reactants, water carbon
  dioxide, are brought together here to create the
  products, sugar oxygen, of photosynthesis.

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Water

• Water is a requirement for photosynthesis to
  take place. Water carbon dioxide are the
  reactants in photosynthesis. Water is taken in by
  the plant through the root system.

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Carbon Dioxide

• Although carbon dioxide is a waste product of
  humans, carbon dioxide is a requirement by plants
  to carry out photosynthesis. It is a reactant in
  the photosynthetic process. Carbon dioxide enters
  the leaf through special openings called
  stomata.

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Oxygen

• Oxygen is a product of the photosynthetic
  process, but it is not created to be used by the
  plant. The purpose of photosynthesis is to create
  food for the plant, therefore oxygen is basically
  a waste product of the plant.

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Sugar

• The production of sugar is the purpose of the
  photosynthetic process. It is food for the plant.
  Water carbon dioxide, together, with energy
  from the sun, create food for a plant. Again, the
  creation of this product is the whole purpose of
  photosynthesis.

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What 2 things are entering the leaf?

• Water Starch
• Water Oxygen
• Water Carbon Dioxide

If you are not correct, I will show you the
diagram again.
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Youve got it!

• Water carbon dioxide are the 2 reactants in
  the photosynthetic process
• It is written like this
• H2O CO2 ?

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What 2 things are exiting the leaf?

• Glucose Carbon Dioxide
• Oxygen Carbon Dioxide
• Oxygen Glucose

If you are not correct, I will show you the
diagram again.
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Oh yeah!

• Sugar oxygen are the 2 products in the
  photosynthetic process
• It is written like this
• H2O CO2 ? C6H12O6 O2

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Putting It Together

• The 2 reactants in photosynthesis are
• water carbon dioxide
• The 2 products in photosynthesis are sugar
  oxygen
• Sunlight chloroplasts allow this to occur.
• So this is kind of like a recipe
• Do you want to help me create an analogy?
• Of Course!

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Photosynthesis Recipe Style!

• Of the following choices related to creating a
  specific food, in this case sugar cookies, which
  of the following choices would best represent the
  ingredients? Hint There are 2.

Sugar Cookies
Mrs. Grant

• Water
• Oxygen
• Sunlight
• Chloroplasts
• Carbon Dioxide
• Sugar

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Not quite

• Think about the items that were the reactants in
  the process of photosynthesis...
• The ingredients for making Sugar Cookies should
  be items that are required to make the cookies.
• Try Again!

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Alright!

• Water is a reactant in the process of
  photosynthesis, meaning it is required to make
  food for the plant.
• Water is the one of the ingredients for making
  our special sugar cookies.
• Determine the other ingredient.
• I have both ingredients, I must move on

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Definitely!

• Carbon Dioxide is a reactant in the process of
  photosynthesis, meaning it is a requirement to
  make food for the plant.
• Carbon Dioxide is the one of the ingredients for
  making our special sugar cookies!
• Determine the other ingredient.
• I have both of my ingredients, I must move on.

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Ingredients all setNow lets mix them up!
Water Bowl

• Which of the following bowls best represents
  where we should mix our H2O CO2 ingredients?

Chloroplast Bowl
Bowl O Sunlight
Dirt Bowl
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No way!

• This bowl would not be good to mix up our H2O
  CO2!
• Please try again!

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We Need Energy!

• This is definitely a part of our cooking
  process, but it is not where we get the energy to
  cook our sugar cookies!
• Try a different energy source!

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Yes Way!

• This bowl would be perfect for mixin up our H2O
  CO2! You are just zippin right along!
• So, after we gather our H2O CO2 ingredients,
  put them in our chloroplast bowl..

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Time to Bake!

• Weve got everything set, now, its time to
  actually bake our sugar cookies! Where on earth
  are we going to get the energy for that?

Which of these choices would give us the energy
to heat this oven, and bake our cookies?
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Wow! Impressive!

• The sun gives the energy to our H2O CO2
  ingredients in our chloroplast bowl to transform
  our mere ingredients into awesome sugar cookies!
• Yumm!

Did someone hear the buzzer? Something is
smelling goooood!
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Here they are!Sugar Cookies!

Yum!! C6H12O6!! These cookies look great! Hey,
something else was made too
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Oxygen!

• Just happened to be created with the leftover
  ingredients. Nice surprise, dont you think? Take
  a deep breath!

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Final Decision. Choose the best description.

• This flower is absorbing H2O from the roots and
  CO2 from the air to produce oxygen for us to
  breathe.
• This flower, with the assistance of the suns
  energy, is combining H2O and CO2 to produce sugar
  and chloroplasts.
• This flower is utilizing the energy from the sun
  to convert the H2O it has taken in from its roots
  and CO2 from the air, to create C6H12O6,its food.

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YES! One more decision, I promise.

• Please choose the correct equation for
  photosynthesis.
• A. H2O C6H12O6 ? CO2 O2
• B. CO2 H2O ? C6H12O6 O2
• C. H2O O2 ? C6H12O6 CO2

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Uh oh

• That response makes me a titch nervousplease
  think about what you have learned thus far, and
  try, try again.
• Can I have another chance?
• Why sure!

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Uh oh again

• That response makes me a titch nervousplease
  think about what you have learned thus far, and
  try, try again.
• Can I have another chance?
• Why sure!

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Dear Student,

• Thank you for spending the time to assure me
  that you have mastered the basics on the
  photosynthesis process. I now will feel
  comfortable going more into depth on the whole
  process with you.
• Again, thank you,
• Mrs. Grant

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