Do Now
 1) How does the mitochondrion use ATP? How does
it use ADP?
 2) How does the mitochondrion get the energy it
needs to form ATP from ADP?
 3) Explain the relationship between the
mitochondrion and the chloroplast.
Photosynthesis and Respiration
Do Now
 Transport review…transport practice problem set
Who uses photosynthesis?
 AUTOTROPHS!
 Plants and organisms that can make their own food
What is Photosynthesis?
 The process by which plants make food. This process
takes place in the CHLOROPLAST (mostly found in
the leaves).
 Autotrophs use energy from sunlight to make sugar
(GLOCOSE)
 Cellular Respiration uses the glucose and converts it
into ATP, which cells use for energy
Where does Photosynthesis take place?
 In the Chloroplast
 https://www.youtube.com/watch?v=Wi60tQa8jfE
Why are plants green?
 Because of CHLOROPHYLL!
 Chlorophyll is pigments located in the chloroplast
 Plants are green because the green wavelength is
reflected, not absorbed.
Absorption of Light by Chlorophyll
9
Chlorophyll absorbs blue-violet & red light best
Absorption
violet
blue
green yellow
wavelength
orange
red
When does Photosynthesis take place?
 When autotrophs are able to capture sunlight energy
and produce usable energy
 So, mostly during daylight hours
Why does Photosynthesis take place?
 To convert unusable (light) energy to usable energy
 In other words, turning SUNLIGHT (unusable) into
GLUCOSE (usable)!
What is the Equation for Photosynthesis?
6CO2 + 6H20 + sunlight → C6H12O6 + 6O2
(Carbon Dioxide + Water+ Sunlight  Glucose + Oxygen)
What are the Reactants of Photosynthesis?
 Carbon Dioxide, Water and Sunlight
What are the Products of Photosynthesis?
 Sugar and oxygen
What Factors affect the rate of Photosynthesis?
 Light intensity
 Carbon Dioxide concentration
 Temperature
What is the efficiency of ATP formation?
 Photosynthesis uses ATP to produce sugars (glucose)
Why is this important to us?
We cannot make our own food (glucose, energy), we
must get our food from plants.
Plants are the first step in the food chain.
Why is this important to us?
The oxygen released during photosynthesis is
necessary for all living things.
EOC Question!
 10.The diagram below shows the relationship
between photosynthesis and cellular respiration and
the organelles in which they occur. Which statement
describes how photosynthesis and cellular
respiration are interrelated?
 IP: Students will answer the following question:
With the increase in carbon dioxide emissions from
factories and cars. How would this affect the rate of
photosynthesis in plants? …What if the plants do not
have enough stomata to absorb the increased carbon
dioxide?
 A. Oxygen is produced
during cellular
respiration and stored
during photosynthesis.
 B. Carbon dioxide and
water released by
cellular respiration
are used in
photosynthesis.
 C. Photosynthesis releases the energy that is stored
during the process of cellular respiration.
 D. Glucose is used during cellular respiration to
produce food that is broken down during
photosynthesis.
Cellular Respiration!
Who uses Cellular Respiration?
 BOTH autotrophs and heterotrophs
What is Cellular Respiration
 The transfer of energy from various molecules
(oxygen and glucose) to produce ATP.
 The process by which both plants and animals
release energy from food (sugar) to make energy cells
can use.
Where does Cellular Respiration take place?
 In the mitochondria of eukaryotes
 In the cytoplasm of prokaryotes.
When does Cellular Respiration take place?
 24 hours a day
Why does Cellular Respiration take place?
 To convert sugars to ATP (form of energy in which it
is most easily broken down)
What is the Equation for Cellular Respiration?
C6H12O6 + 6O2 → 6CO2 + 6H20
(Sugar + Oxygen  Carbon Dioxide + Water+ATP)
What are the Reactants for Cellular Respiration?
 Sugars and oxygen
What are the Products for Cellular Respiration?
 Carbon dioxide, water and ATP
What are the factors that affect the rate of
Cellular Respiration?
 Oxygen concentration
 Temperature
What is the efficiency of ATP formation?
 For each glucose molecule:

AEROBOIC: 36 ATPs


WITH OXYGEN
ANAEROBIC: 2 ATPs

WITHOUT OXYGEN
(We are going to talk more about Aerobic vs.
Anaerobic tomorrow!)
Check Point
1.
2.
3.
4.
5.
What is ATP?
What is chlorophyll?
What are chloroplasts?
What are mitochondria? What is cytoplasm?
What are eukaryotes? What are prokaryotes?
Photosynthesis vs. Cellular Respiration Foldable
• Directions:
1.
2.
3.
4.
5.
6.
7.
8.
Everyone has 2 sheets of paper
Stack the 2 sheets 1 inch apart
Fold hamburger style
Left hand side: Photosynthesis
Right hand side: Cellular Respiration
Flap 1: WHERE
Flap 2: INGREDIENTS
Flap 3: EQUATION
Photosynthesis
Respiration
WHERE
WHERE
INGREDIENTS
INGREDIENTS
EQUATION
EQUATION
What is Photosynthesis?
What is Cellular Respiration?
The process by which plants
make food. This process takes
place in the CHLOROPLAST
(mostly found in the leaves).
The process by which both
PLANTS and ANIMALS release
energy from food. This process
takes place in the cells
MITOCHONDRIA.
AUTOTROPHS only!
Autotrophs AND Heterotrophs
Where does photosynthesis take
place?
Where does respiration take place?
When does respiration take place?
When does photosynthesis take
place?
(PICTURE)
(PICTURE)
Where does the energy come from?
Where does the energy come from?
Picture
Picture
REACTANTS:
REACTANTS:
PRODUCTS:
PRODUCTS:
EQUATION:
EQUATION:
REACTANTS
PRODUTS
REACTANTS
PRODUTS
Exit Ticket
1.
2.
3.
4.
5.
Where does photosynthesis take place in a cell?
Where does cellular respiration take place in a cell?
What organisms can carry out cellular respiration?
What is the equation for photosynthesis?
What is the equation for respiration?