The document discusses photosynthesis and cellular respiration. [1] Photosynthesis occurs in plants and uses carbon dioxide, water and sunlight to produce glucose and oxygen. [2] Cellular respiration uses glucose and oxygen to produce energy in the form of ATP in mitochondria. [3] Photosynthesis and respiration are complementary processes, with photosynthesis producing the oxygen and glucose used for respiration.

1. Catalyst
 According to the diagram, what is Product
1 and what process made it?
 According to the
diagram, what is
Product 2 and what
process made it?

2. So what happens when you
breathe?
Oxygen (O2) goes in
Carbon dioxide (CO2)
goes out
BUT IT’S NOT THIS SIMPLE….

3. So where does all this oxygen come
from??
 PLANTS doing PHOTOSYNTHESIS!

4. What does photosynthesis mean?
 Photo =
light
 Synthesis =
putting things together
 Photosynthesis =
putting things together with light

5. So What do Plants Need to
Survive?
 Plants need:
 Water- H2O
 Carbon Dioxide
 Light- the Sun!
 Chlorophyll- the GREEN in plants

6. What does the Reaction
Look like?

7. What do Plants Make from
Photosynthesis?
 Plants Make:
 1. Glucose- sugar
 2. Oxygen- the air

8. Guided Notes: Photosynthesis
 Photosynthesis is how plants use sunlight
to make oxygen and sugar.
Water + Carbon Dioxide Oxygen + Sugar
(H2O) (CO2) (O2) (C6H12O6)
+ ENERGY from sunlight
Reactants (what goes in) Products (what comes out)

10. What is cellular respiration?
 The processes that
cells use to get
energy from
molecules

11. Anaerobic vs.
Aerobic Respiration

12. Does it require oxygen?
Aerobic Anaerobic
 YES!  NO!

13. Where does it happen?
Aerobic Anaerobic
 Mostly  Cytoplasm
mitochondria

14. How much ATP does it
make?
Aerobic Anaerobic
 38 ATP for  2 ATP for every
every glucose glucose

15. What are the steps?
Aerobic Anaerobic
1. Glycolysis 1. Glycolysis
2. Krebs Cycle 2. Fermentation (2
3. Electron types)
Transport
Chain

16. Is it sustainable?
Aerobic Anaerobic
 YES!  NO!
 It can continue  We can only do
indefinitely this short term

17. What types of cells use
this?
Aerobic Anaerobic
 Most cells  Yeast
 Prokaryotes
 Muscle cells

18. Photosynthesis Respiration
Make sugar (glucose) Make ATP by
Purpose breaking down sugar
from sunlight
(glucose)
Who does Plants, some Plants AND animals
it? bacteria (all living things)
chloroplast Mitochondria &
Organelle cytoplasm
CO2 + H2O sugar + O2
Equation sugar + O2 CO2 + H2O

19. Equations
Photosynthesis:
CO2 + H2O  C6H12O6 + O2
Respiration:
C6H12O6 + O2 H2O + CO2

20. Overview of the process
 Photosynthesis was
about making energy
which means making
bonds.
 Respiration is about
releasing energy which
means breaking bonds.

21. Why do we need
photosynthesis?
• This process is how almost all of our planet gets its
energy--almost all living things rely on the plants to
capture energy from the sun and convert it into the
bonds of glucose. Then we either eat the plants or
things that eat only plants to get energy
• They make all the oxygen on our plant so we
couldn’t go through aerobic respiration without the
plants making oxygen

22. Why do all living things need
Respiration?
 All living things need to be able to get energy for
their cells! Even the plants go through respiration
so they can break down the glucose into ATP and
use that energy in their cells
 REMEMBER: 1 glucose = 38 ATP

23. What happens in each
step?
 Light-reaction: Take energy from the sun and store it in
the bonds of ATP, release oxygen
 Dark-Reaction: use the ATP to make glucose from
carbon dioxide and water
 Glycolysis: Split glucose into two pyruvate molecules
 Kreb’s Cycle: Break pyruvate down into carbon dioxides
and steal the electrons
 Electron Transport Chain: Use the electrons to make
ATP

24. Where does each take
place?
 Photosynthesis: CHLOROPLAST
 Light Reaction: Thylakoid
 Dark Reaction: Stroma
 Respiration: MITOCHONDRIA
 Glycolysis: Cytoplasm
 Kreb’s Cycle: Matrix of Mitochondria
 ETC: Cristae of the Mitochondria