4.2
of Photosynthesis
•SetOverview
up Cornell Notes
on
pg. 51
4.4 Intro
to Cellular Respiration
2.1 Atoms,
Ions,
and Molecules
•Topic: 4.4/4.5 Intro to
Cellular Respiration
1.
•Essential Question:
1. What is the difference
between aerobic and
anaerobic processes?
2. What processes in
cellular respiration are
aerobic? Anaerobic?
2.
What is the difference between aerobic and
anaerobic processes?
What processes in cellular respiration are
aerobic? Anaerobic?
KEY CONCEPT
The overall process of cellular
respiration converts sugar
into ATP using oxygen.
4.4 Overview of Cellular Respiration
KEY CONCEPT
The overall process of cellular respiration converts
sugar into ATP using oxygen.
4.4 Overview of Cellular Respiration
Discussion Question #1
Try and hold your breath for as long as you can (no
cheating).
Pg. 50
How did you feel as you were holding
your breath?
Why do you think you felt this way?
If you were to run a few miles, what
would happen to your breathing?
4.4 Overview of Cellular Respiration
Discussion Question # 2
How does your body use oxygen?
• Oxygen helps your body break down chemical energy
that is stored in sugars and other carbon based
molecules.
• The energy produced is ATP
ATP
4.4 Overview of Cellular Respiration
Compare the reactants and products. What do you notice?
4.4 Overview of Cellular Respiration
• Plants use photosynthesis to make their own food
• Animals eats other organisms as food
– Food is not the direct source of energy
- Instead we break down molecules from food to produce ATP
- Plants break down stored glucose to produce ATP
• Cellular respiration releases chemical energy from sugars
(produced by photosynthesis) and other carbon-based
molecules to make ATP when oxygen is present
4.4 Overview of Cellular Two
Respiration
“Stages”
• Light Dependent- ETC-Fuels
Light Independent
• Light Independent- Calvin CycleMakes Glucose
Two “Stages”
• Stage I- Kreb’s Cycle- Fuels Stage
II
• Stage II- ETC- Makes lots of ATP!
4.4 Overview of Cellular Two
Respiration
“Stages”
• Light Dependent- ETC-Fuels
Light Independent
• Light Independent- Calvin CycleMakes Glucose
Two “Stages”
• Stage I- Kreb’s Cycle- Fuels Stage
II
• Stage II- ETC- Makes lots of ATP!
4.4 Overview of Cellular Respiration
• Cellular respiration releases chemical energy from glucose
(produced by photosynthesis) and other carbon-based
molecules to make ATP when oxygen is present
• Cellular respiration is aerobic, or requires oxygen.
O2
4.4 Overview of Cellular Respiration
• Cellular respiration takes place in mitochondria “the
powerhouse of the cell”
4.4 Overview of Cellular Respiration
• Glycolysis must take place first. It happens in the cell’s
cytoplasm
– anaerobic process (does not require oxygen)
– splits glucose (from photosynthesis) into two threecarbon molecules called pyruvates
- these will be broken down in the mito to make many more ATP
– produces two ATP molecules
Draw on P. 51
“Sweet Split”
2 pyruvates
ATP
4.4 Overview of Cellular Respiration
There are two main parts to a mitochondria:
1. Matrix- area inside the inner membrane- Kreb’s
Cycle
2. Inner membrane- Electron Transport
Glycolysis:
4.4
Overview of Cellular 1.
Respiration
1
3.
Takes place in ___________
2.
5.
4.
2
3
6.
7.
8.
Takes place in the _____________
4
Glycolysis:
4.4
Overview of Cellular 1.
Respiration
Mitochondria
Glucose is
1
broken down
into 2 3-carbon
molecules
3. Kreb’s Cycle
ATP
Takes place in the Matrix
5. Energy
2. 2 Pyruvates
24.
6 CO2
3
Energy from
Glycolysis
ATP
6. 6 O2
7. 6 H2O
8. Electron Transport Chain
Takes place in the Inner Membrane
4
4.4 Overview of Cellular Respiration
ATP and Cellular Respiration (4m12s)
4.4 Overview of Cellular Respiration
• The equation for the overall process is:
C6H12O6 + 6O2  6CO2 + 6H2O + ATP
• The reactants in photosynthesis are the same as the
products of cellular respiration.
Pg. 50 in INB
4.4
Overview of Cellular Respiration
Pg. 115 in book
Cellular Respiration
…..Reactants…..
Stage 1
1.
2.
Stage 2
3.
…..Products…..
4.
4.4
Overview
of Cellular Respiration
Stage
I
• The Krebs cycle takes place in
the mitochondrial matrix
– 2 pyruvates enter cellular
respiration
1. Pyruvates are broken
down and a small
amount of ATP (x2) is
made during the Kreb’s
Cycle
2. ATP transfers energycarrying molecules to
Stage II: The Electron
Transport Chain
– releases carbon dioxide
as waste
1
mitochondrion
matrix (area enclosed
by inner membrane)
ATP
and
6CO2
Krebs Cycle
energy
2
3
energy from
glycolysis
inner membrane
ATP
and
and
6O2
6H2 O
4
4.4
Overview
of Cellular Respiration
Stage
II
• The electron transport chain produces a large amount of
ATP and takes place in the inner membrane
3. Energy from Stage I
transferred to proteins in
the inner membrane
1
mitochondrion
matrix (area enclosed
by inner membrane)
4. oxygen enters process
and is used to make H2O Electron
3 Transport
energy from
– A large number of ATP (x
glycolysis
up to 34) molecules are
and
6O2
produced
– water and heat are
released
ATP
and
6CO2
energy
2
inner membrane
ATP
and
6H2 O
4
4.4 Overview of Cellular Respiration
Cellular Respiration
Sugar
(2 pyruvates)
…..Reactants…..
Stage 1
The Kreb’s
Cycle
breaks down
pyruvates
into ATP (2)
O2
Energy is
transferred to
the E.T. C.
Stage 2
E.T.C.: Energy
is transferred
to proteins in
the inner
membrane of
the mito.
A large # of
ATP is
made (34).
O2 is used
to make
H2O
H2O
CO2
…..Products…..
Heat
4.4 Overview of Cellular Respiration
Cellular Respiration
• Up to 38 ATP molecules are made from the breakdown of
one glucose molecule
• 2 from glycolysis
• 2 from Kreb’s
• Up to 34 from Electron Transport
38
4.4 Overview of Cellular Respiration
Video
• Glycolysis and Cellular Respiration (1m53s)
4.2
of Photosynthesis
•SetOverview
up Cornell Notes
on
pg. 53
•Topic: Photosynthesis &
Cellular Respiration
•Essential Question:
1. Describe the
relationship between
cellular respiration and
photosynthesis in a
double-bubble map.
Photosynthesis
2.1
Atoms, Ions, & Cellular Respiration
and Molecules
1. Describe the relationship between cellular
respiration and photosynthesis in a doublebubble map.
4.4 Overview of Cellular Respiration
Video
• Cellular Respiration Overview (4m 28s)
4.4 Overview of Cellular Respiration
EQ: Please create a Double-bubble map comparing and
contrasting Photosynthesis and Cellular Respiration.
Pg. 52 in INB
Photosynthesis
Cellular
Respiration
Include: Reactants/Products, organisms that
undergo each, Organelles, chemical equation, etc…
4.4 Overview of Cellular Respiration
White board:
Photosynthesis
Cellular
Respiration
4.4 Overview of Cellular Respiration
Reactants
•Light
Energy
•CO2
•H2O
Chloroplast
Reactants
•Glucose
•O2
Plants
Energy
ATP
Photosynthesis
Calvin Cycle
Products
•Glucose (sugar)
•O2
Kreb’s Cycle
Cellular
Respiration
Chemical
Reactions
E.T.C
2 Main Stages
Mitochondria
Animals
Products
•CO2
•H2O
•Heat
ATP
4.4 Overview of Cellular Two
Respiration
“Stages”
• Light Dependent- ETC-Fuels
Light Independent
• Light Independent- Calvin CycleMakes Glucose
Two “Stages”
• Stage I- Kreb’s Cycle- Fuels Stage
II
• Stage II- ETC- Makes lots of ATP!
4.4 Overview of Cellular Respiration
P. 53
Labeling 1-9
Photosynthesis and Cellular Respiration Cycle Diagram
4.4 Overview of Cellular Respiration
• Life on Earth is solar powered, and energy makes a oneway trip through an ecosystem
• Chemicals, however, are recycled
• The CO2 and H2O released by cellular respiration
are converted through photosynthesis to glucose
and O2, which are then used again in respiration
Photosynthesis
CO2 and H2O
Cellular respiration
Glucose and O2
4.4 Overview of Cellular Respiration
On pg. 53- Label each part of this diagram
1.
2.
3.
9.
4.
8.
6.
5.
7.
4.4 Overview of Cellular
Respiration
1. Photosynthesis
2. Chloroplast
3. C6H12O6
9. CO2
4. O2
8. H2O
6. Mitochondria 5. Cellular Respiration
7. ATP
4.4 Overview of Cellular Respiration
4.4 Overview of Cellular Respiration
Pg. 53 in INB
• Please make a diagram
showing the relationship
between Photosynthesis
and Cellular Respiration
Products
• Title of Process
• Organelle
• Organism
Products
• Title of Process
• Organelle
• Organism