Be open to pg. 7
of your science
notebook
Daily Wake
Up
Photosynthesis
When plants harness the
power of LIGHT to CREATE
food!
Review from last week
Talk to your partner: What are vascular and
non-vascular plants?
Essential Question:
 How
do plants eat?
Goal:
I can identify where photosynthesis takes
place and write the chemical equation for
photosynthesis.
Topic 1: Plants are Producers
PLANTS ARE PRODUCERS
 Producers
are organisms
that make their own
energy.
 (They
do not eat like us)
Discuss with table partner
 Why
do plants need energy? What do
they use it for?
Topic 1: Plants are Producers
 Plants
do a process called photosynthesis,
which is when they use energy from the sun
to change carbon dioxide and water into
sugar and oxygen.
 Plants
eat sugar that they make inside their
bodies!
Topic 2: Photosynthesis Equation
Topic 2: Photosynthesis Equation
In photosynthesis plants uptake
certain substance and change
them
(we can remember this by putting it into an equation)
Topic 2: Photosynthesis Equation
1 cup flour + 1 cup milk + 2 TBSP baking powder + 1 egg + 1 TSP salt
(REACTANTS)
(heat)
-----------------------> 12 Pancakes
(PRODUCTS)
Topic 2: Photosynthesis Equation
light energy
6 CO2 + 6 H2O ------------> C6H12O6 + 6 O2
How to read that:
Carbon dioxide + water + light YIELDS Glucose + oxygen
Reactants
Products
Topic 2: Photosynthesis Equation
Topic 2: Photosynthesis equation
 Oxygen
 We
is a product of photosynthesis
wouldn’t be able to breathe without plants!!!
Get up and find someone
new
 Partner
A: list all of the reactants in the
photosynthesis (the starting ingredients)
 Partner
B: list the products in the
photosynthesis (what comes out of it).
Why are these products important for
humans?
Sketch it!
Topic 3: Where??!!
Topic 3: Where?
 Carbon
dioxide enters tiny holes = stomata
 Sunlight
is absorbed
 Water
from roots
Stomata close up
Chloroplasts absorb sunlight
Topic 3: Where?
 Photosynthesis
takes place in the
chloroplasts (the green parts)
Get up and find someone new
(take your notes)
 What
 How
is a stomata?
do plants get the reactants they
need to do photosynthesis?
Quiz Yourself!
Use your notes from today to answer the
following questions
Where do plants get food?
A.
B.
C.
D.
Soil
They eat prey
They make it themselves
They take nutrients from water
Water and carbon dioxide
are converted into sugar and
oxygen through the process
of….
A.
B.
C.
D.
Glycolysis
Photosynthesis
Cellular Respiration
Fermentation
Which of the following is an
example of a producer?
A.
B.
C.
D.
Dog
Cat
Elephant
Tree
The TWO parts of a
chemical equation are…
A.
B.
C.
D.
Reactants and Products
Oxygen and Carbon dioxide
Mitochondria and chloroplasts
Peanut butter and jelly
Write out the CORRECT
chemical equation for
photosynthesis
Check Yo Self…
6 CO2 + 6 H2O ------------> C6H12O6 + 6 O2
In which organelle does
photosynthesis take place?
A.
B.
C.
D.
Mitochondria
Golgi body
Nucleus
Chloroplast
Now you can….
 Identify
where photosynthesis takes place
 Write the chemical equation for
photosynthesis
 Explain why we need photosynthesis
Pat yourself on the back!
Essential Question
 What
is the difference between the Light
Reaction and Calvin Cycle during
photosynthesis?
Objective:
I can explain how glucose is made.
Let’s Review!
 Using
the notecards at your table,
rearrange them into the correct chemical
equation for photosynthesis.
Does it look like this?
6 CO2 + 6 H2O ------------> C6H12O6 + 6 O2
2 Cycles
 There
are two cycles that work
together to create glucose (C6H12O6)
 Light
Reactions (require light)
 Calvin Cycle (doesn’t require light or
dark)
 Photolysis-
when a chemical (like water)
is broken down by photons
Light Reaction- Needs Light
Occurs
in the grana
of chloroplasts
 Adds
a phosphate to
ADP to become ATP
 Splits water (H2O) to
release O2 (oxygen)
and H+ (hydrogen)
Sends H+ over to
Calvin Cycle
That’s
what we
breathe!!
Remember Diffusion?
 After
the Light
Reaction, oxygen
(O2) diffuses out
of the cell that we
then breathe!
That pore is called
a stomata
Calvin Cycle- Doesn’t need light!
 Occurs



in the stroma of chloroplasts
Takes in CO2 (Carbon Dioxide)
Uses the ATP (energy) and H+ from Light
Reaction
Synthesizes (makes) GLUCOSE (C6H12O6)
 This
can happen day or night