NOTE TO INSTRUCTOR:
If you have a class larger than 26 you may need to add
additional roles – e.g. you could have a panel that verifies
in the equations formed are correct.
If you have a class smaller than 26 you may need to have
some students take multiple atom cards – e.g. instead of
giving just 1 hydrogen, give students 2 hydrogen.
If students do well arranging themselves you could
increase difficulty but having them arrange themselves
without the equation being held by you. Instead just call
out the process.
Alternatively you could call out a specific part of the
equation for them to do (Photosynthesis Reactants).
Description:
Cellular Respiration vs. Photosynthesis: Part 1
Learn the process of photosynthesis and cellular respiration by
assigning students a particular molecule in the process.
Goals:
Explain carbon and nitrogen cycles.
Examine how interactions between a species
and its environment define a species niche.
Objectives: Day 12
•Recognize
the photosynthesis equation is
basically the respiration equation
“backwards.”
•Realize
that the very same carbon molecules
that heterotrophs breathe out are the carbon
molecules that make up the backbone of the
glucose molecule.
•List
and Identify the molecules used in
photosynthesis and respiration as reactants
and products.
Warm-Up
Questions:
1. Write the equations for photosynthesis.
2. Write the equation for respiration.
Answers:
1. 6CO2 + 6H2O + Energy = C6H12O6 + 6O2
2. C6H12O6 + 6O2 = 6CO2 + 6H2O + Energy
Warm-Up
Questions:
1. What is the
2. What is the
3. What is the
4. What is the
Answers:
1. CO2
2. C6H12O6
3. O2
4. CO2 & H2O
molecule that gives plants Carbon?
molecule that gives animals energy?
“waste” product of photosynthesis?
waste products of respiration?
Today’s Overview
Each student will be assigned a part in the
process of photosynthesis and cellular
respiration.
As a class you will be required to look at the
equation for these processes and arrange
yourself to match them.
Once you have your role, wait for further
instructions.
A day in the life of a…
Now that you are familiar with photosynthesis
and cellular respiration processes, you will
design a story that follows a carbon
molecule through both processes.
You are encouraged to be creative and must
include at least one autotroph and one
heterotroph in your story.
(if not finished in class this is homework!)
Think about it…
Exit Ticket:
•What were the major two processes
investigated today?
•What
natural cycle(s) are they part of?
Objectives: Day 12
•Recognize
the photosynthesis equation is
basically the respiration equation
“backwards.”
•Realize
that the very same carbon molecules
that heterotrophs breathe out are the carbon
molecules that make up the backbone of the
glucose molecule.
•List
and Identify the molecules used in
photosynthesis and respiration as reactants
and products.