Bell Work
• What organelle does photosynthesis occur in?
• What reaction takes place in the thylakoid?
• What reaction takes place in the stroma?
• Which reaction do you think requires sunlight?
Sunday, November 4, 2012
Bell Work
photosynthesis occur in?
• What organelle doeschloroplast
• What reaction takes place in the thylakoid?
• What reaction takes place in the stroma?
• Which reaction do you think requires sunlight?
Sunday, November 4, 2012
Bell Work
photosynthesis occur in?
• What organelle doeschloroplast
place in the thylakoid?
• What reaction takes
light dependent
• What reaction takes place in the stroma?
• Which reaction do you think requires sunlight?
Sunday, November 4, 2012
Bell Work
photosynthesis occur in?
• What organelle doeschloroplast
place in the thylakoid?
• What reaction takes
light dependent
place in the stroma?
• What reaction takes
light independent
• Which reaction do you think requires sunlight?
Sunday, November 4, 2012
Bell Work
photosynthesis occur in?
• What organelle doeschloroplast
place in the thylakoid?
• What reaction takes
light dependent
place in the stroma?
• What reaction takes
light independent
think requires sunlight?
• Which reaction dolightyoudependent
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
a. is wrong because plants
require water, they do not
release water
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
b. is wrong because animals
require oxygen, they do not
release oxygen
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
d. is wrong because plants
require carbon dioxide, they do
not release carbon dioxide
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
Sunday, November 4, 2012
Bell Work
A diagram representing the relationship between
photosynthesis and cellular respiration is shown
below. The numbered boxes in the diagram represent
which of the following?a. 1 - water; 2 - nitrogen
b. 1 - nitrogen; 2 - oxygen
c. 1 - oxygen; 2 - carbon dioxide
d. 1 - carbon dioxide; 2 - water
c. is right because animals get
oxygen from plants, and plants
get carbon dioxide from animals
Sunday, November 4, 2012
Photosynthesis
Sunday, November 4, 2012
Photosynthesis
• process by which plants make their own food
Sunday, November 4, 2012
Photosynthesis
• process by which plants make their own food
C H O + 6O
• 6CO + 6H O + sunlight
2
Sunday, November 4, 2012
2
6
12
6
2
Photosynthesis
• process by which plants make their own food
C H O + 6O
• 6CO + 6H O + sunlight
• two reactions
2
Sunday, November 4, 2012
2
6
12
6
2
Photosynthesis
• process by which plants make their own food
C H O + 6O
• 6CO + 6H O + sunlight
• two reactions
• light dependent
2
Sunday, November 4, 2012
2
6
12
6
2
Photosynthesis
• process by which plants make their own food
C H O + 6O
• 6CO + 6H O + sunlight
• two reactions
• light dependent
• light independent
2
Sunday, November 4, 2012
2
6
12
6
2
Photosynthesis
Sunday, November 4, 2012
Photosynthesis
Sunday, November 4, 2012
sun
Photosynthesis
energy
building
reactions
Sunday, November 4, 2012
sun
Photosynthesis
sun
energy
building
reactions
ATP
Sunday, November 4, 2012
Photosynthesis
sun
energy
building
reactions
ATP
sugar
building
reactions
Sunday, November 4, 2012
Photosynthesis
sun
energy
building
reactions
ATP
sugar
building
reactions
CO2
Sunday, November 4, 2012
Photosynthesis
sun
energy
building
reactions
ATP
sugar
building
reactions
CO2
Sunday, November 4, 2012
sugar
Photosynthesis
sun
energy
building
reactions
ATP
ADP
sugar
building
reactions
CO2
Sunday, November 4, 2012
sugar
Photosynthesis
sun
energy
building
reactions
Light Dependent
ATP
ADP
sugar
building
reactions
CO2
Sunday, November 4, 2012
sugar
Photosynthesis
sun
energy
building
reactions
ATP
ADP
Light Independent
CO2
Sunday, November 4, 2012
Light Dependent
sugar
building
reactions
sugar
Light Dependent Reaction
H 2O
sunlight
Energy Building
Reactions
ATP
O2
Sunday, November 4, 2012
Light Dependent Reaction
Energy producing reaction that
•
HO
2
requires sunlight
sunlight
Energy Building
Reactions
ATP
O2
Sunday, November 4, 2012
Light Dependent Reaction
Energy producing reaction that
•
HO
2
requires sunlight
sunlight
Energy Building
Reactions
ATP
O2
Sunday, November 4, 2012
H 2O
+
light → ATP +
energy
O2
Light Dependent Reaction
Sunday, November 4, 2012
Light Dependent Reaction
• occurs in thylakoid
Sunday, November 4, 2012
Light Dependent Reaction
• occurs in thylakoid
• electrons in chlorophyll absorb light energy
Sunday, November 4, 2012
Light Dependent Reaction
• occurs in thylakoid
• electrons in chlorophyll absorb light energy
• water molecules are split
Sunday, November 4, 2012
Light Dependent Reaction
• occurs in thylakoid
• electrons in chlorophyll absorb light energy
• water molecules are split
• oxygen is released
Sunday, November 4, 2012
Light Dependent Reaction
• occurs in thylakoid
• electrons in chlorophyll absorb light energy
• water molecules are split
• oxygen is released
• hydrogen bonds to NADP+ to form NADPH
Sunday, November 4, 2012
Light Dependent Reaction
• occurs in thylakoid
• electrons in chlorophyll absorb light energy
• water molecules are split
• oxygen is released
• hydrogen bonds to NADP+ to form NADPH
• energy is produced (ADP turned into ATP)
Sunday, November 4, 2012
Light Independent Reaction
CO2
H 2O
ADP
Sugar
Building
Reactions
ATP
O2
Sunday, November 4, 2012
sugars
C6H12O6
Light Independent Reaction
H 2O
2
ADP
ATP
O2
Sunday, November 4, 2012
Sugar
producing
CO
reaction that does not
require sunlight,
but does
Sugar
require
Building
Reactions
energy and
hydrogen from
the first stage.
sugars
C6H12O6
Light Independent Reaction
H 2O
2
ADP
ATP
O2
Sugar
producing
CO
reaction that does not
require sunlight,
but does
Sugar
require
Building
Reactions
energy and
hydrogen from
the first stage.
sugars
C6H12O6
CO2 + ATP → C6H12O6 + ADP
Sunday, November 4, 2012
Light Independent Reactions
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
• occurs in the stroma
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
• occurs in the stroma
• carbon dioxide and hydrogen combine to form
simple sugars
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
• occurs in the stroma
• carbon dioxide and hydrogen combine to form
simple sugars
• simple sugars can be joined to form
carbohydrates, such as cellulose and starch
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
• occurs in the stroma
• carbon dioxide and hydrogen combine to form
simple sugars
• simple sugars can be joined to form
carbohydrates, such as cellulose and starch
• cellulose:
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
• occurs in the stroma
• carbon dioxide and hydrogen combine to form
simple sugars
• simple sugars can be joined to form
carbohydrates, such as cellulose and starch
• cellulose:: makes up the cell wall
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
• occurs in the stroma
• carbon dioxide and hydrogen combine to form
simple sugars
• simple sugars can be joined to form
carbohydrates, such as cellulose and starch
• cellulose:: makes up the cell wall
• starch:
Sunday, November 4, 2012
Light Independent Reactions
• also known as the Calvin Cycle
• occurs in the stroma
• carbon dioxide and hydrogen combine to form
simple sugars
• simple sugars can be joined to form
carbohydrates, such as cellulose and starch
• cellulose:: makes up the cell wall
• starch:: used for energy storage
Sunday, November 4, 2012
Photosynthesis Summary
Sunday, November 4, 2012
Photosynthesis Summary
Requires
Sunday, November 4, 2012
Produces
Photosynthesis Summary
Requires
• Carbon Dioxide
Sunday, November 4, 2012
Produces
Photosynthesis Summary
Requires
• Carbon Dioxide
• Water
Sunday, November 4, 2012
Produces
Photosynthesis Summary
Requires
• Carbon Dioxide
• Water
• Sunlight
Sunday, November 4, 2012
Produces
Photosynthesis Summary
Requires
• Carbon Dioxide
• Water
• Sunlight
Sunday, November 4, 2012
Produces
• Sugar
Photosynthesis Summary
Requires
• Carbon Dioxide
• Water
• Sunlight
Sunday, November 4, 2012
Produces
• Sugar
• Oxygen
Photosynthesis Summary
Sunday, November 4, 2012
Photosynthesis Summary
Light Dependent
Sunday, November 4, 2012
Light Independent
Photosynthesis Summary
Light Dependent
• requires light and water
Sunday, November 4, 2012
Light Independent
Photosynthesis Summary
Light Dependent
• requires light and water
• produces oxygen & ATP
Sunday, November 4, 2012
Light Independent
Photosynthesis Summary
Light Dependent
• requires light and water
• produces oxygen & ATP
• releases the oxygen
Sunday, November 4, 2012
Light Independent
Photosynthesis Summary
Light Dependent
Light Independent
• requires light and water • requires CO
• produces oxygen & ATP
• releases the oxygen
Sunday, November 4, 2012
2
and ATP
Photosynthesis Summary
Light Dependent
Light Independent
• requires light and water • requires CO and ATP
• produces oxygen & ATP • produces sugar
• releases the oxygen
2
Sunday, November 4, 2012
Photosynthesis Summary
Light Dependent
Light Independent
• requires light and water • requires CO and ATP
• produces oxygen & ATP • produces sugar
• releases the oxygen • stores the sugar
2
Sunday, November 4, 2012
Dependent or Independent
1. this stage requires light
2. electrons in chlorophyll absorb light energy
3. energy from electrons convert ADP to ATP
4. water molecules are split to form oxygen and hydrogen
5. hydrogen ions attach to carrier molecules (NADP+)
6. this stage does not require light
7. uses energy to convert carbon dioxide and hydrogen
into sugars
8. stores excess sugars as starch and cellulose
9. this stage can happen at night
10. this stage is sometimes called the Calvin Cycle
Sunday, November 4, 2012
Review Questions
1. What is photosynthesis?
2. In what organelle does the process occur?
3. What is the pigment that allows the process to occur?
4. In what part of this organelle does the light dependent
reaction take place?
5. What is the inside of this part called?
6. What is a stack of this part called?
7. What happens to water during the light dependent reaction?
8. What is produced during the light dependent reaction?
9. Where does the light independent reaction take place?
10. What is produced during the light independent reaction?
11. What is the formula for photosynthesis?
12. In which stage of photosynthesis is oxygen given off?
Sunday, November 4, 2012