4.4 Intro to Cellular Respiration Set up Cornell Notes on pg. 47 Topic: 4.4/4.5 Intro to Cellular Respiration Essential Question: 1. Describe the relationship between cellular respiration and photosynthesis in a double-bubble map. 4.4 Intro to Cellular Respiration 2.1 Atoms, Ions, and Molecules 1. Describe the relationship between cellular respiration and photosynthesis in a double bubble map.
KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.
Try and hold your breath for as long as you can (no cheating). 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?
ATP 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
Pg. 46 Compare the reactants and products. What do you notice?
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 Cellular respiration releases chemical energy from sugars (produced by photosynthesis) and other carbon-based molecules to make ATP when oxygen is present
Two “Stages” Light Dependent- ETC-Fuels Light Independent Light Independent- Calvin Cycle- Makes Glucose Two “Stages” Stage I- Kreb’s Cycle- Fuels Stage II Stage II- ETC- Makes lots of ATP!
Cellular respiration takes place in mitochondria “the powerhouse of the cell”
There are two main parts to a mitochondria: 1. Inner membrane 2. Matrix- area inside the inner membrane
Takes place in the _____________ 1 2 4 3 Glycolysis: 1. 3. Takes place in ___________ 2. 5. 4. 6. 7. 8. Takes place in the _____________
Energy from Glycolysis 1 2 4 3 Glycolysis: Glucose is broken down into 2 3-carbon molecules 1. Mitochondria 3. Kreb’s Cycle Takes place in the Matrix ATP 5. Energy 2. 2 Pyruvates 4. 6 CO2 Energy from Glycolysis ATP 6. 6 O2 7. 6 H2O 8. Electron Transport Chain Takes place in the Inner Membrane
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.
Glycolysis must take place first. It happens in the cell’s cytoplasm anaerobic process (does not require oxygen) splits glucose (from photosynthesis) into two three-carbon molecules called pyruvates produces two ATP molecules 2 pyruvate “Sweet Split” ATP
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
Video Turning Energy into ATP
Pg. 46 in INB Pg. 115 in book Cellular Respiration …..Reactants….. Stage 1 Stage 2 1. 2. 3. 4. …..Products…..
energy from glycolysis Stage I The Krebs cycle takes place in the mitochondrial matrix 2 pyruvates enter cellular respiration 6H O 2 6CO 6O mitochondrion matrix (area enclosed by inner membrane) inner membrane ATP energy energy from glycolysis 1 4 3 and Pyruvates are broken down and ATP is made during the Kreb’s Cycle ATP transfers energy-carrying molecules to Stage II: The Electron Transport Chain releases carbon dioxide as waste Krebs Cycle
energy from glycolysis Stage II The electron transport chain produces a large amount of ATP and takes place in the inner membrane 6H O 2 6CO 6O mitochondrion matrix (area enclosed by inner membrane) inner membrane ATP energy energy from glycolysis 1 4 3 and 3. energy transferred to proteins in the inner membrane 4. oxygen enters process and is used to make H2O A large number of ATP molecules are produced Electron Transport water and heat are released
Cellular Respiration Sugar (2 pyruvates) O2 …..Reactants….. Stage 1 Stage 2 E.T.C.: Energy is transferred to proteins in the inner membrane of the mito. Energy is transferred to the E.T. C. A large # of ATP is made. O2 is used to make H2O The Kreb’s Cycle breaks down pyruvates into ATP CO2 H2O Heat …..Products…..
Video Turning ATP into ADP
Video Glycolysis and Cellular Respiration
Photosynthesis & Cellular Respiration Set up Cornell Notes on pg. 49 Topic: Photosynthesis & Cellular Respiration Essential Question: What is the difference between aerobic and anaerobic processes. What processes in cellular respiration are aerobic? Anaerobic? Photosynthesis & Cellular Respiration 2.1 Atoms, Ions, and Molecules What is the difference between aerobic and anaerobic processes. What processes in cellular respiration are aerobic? Anaerobic?
EQ: Please create a Double-bubble map comparing and contrasting Photosynthesis and Cellular Respiration. Pg. 48 in INB Cellular Respiration Photosynthesis Include: Reactants/Products, organisms that undergo each, Organelles, chemical equation, etc…
White board: Cellular Respiration Photosynthesis
Reactants Light Energy CO2 H2O Reactants Glucose O2 Plants Energy ATP Kreb’s Cycle Cellular Respiration Photosynthesis Mitochondria Chloroplast Animals Calvin Cycle Chemical Reactions Products CO2 H2O Heat Products Glucose (sugar) O2 E.T.C ATP 2 Main Stages
Two “Stages” Light Dependent- ETC-Fuels Light Independent Light Independent- Calvin Cycle- Makes Glucose Two “Stages” Stage I- Kreb’s Cycle- Fuels Stage II Stage II- ETC- Makes lots of ATP!
Life on Earth is solar powered, and energy makes a one-way 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 Glucose and O2 Cellular respiration
On pg. 49- Label each part of this diagram 1. 2. 3. 9. 4. 8. 6. 5. 7.
1. Photosynthesis 2. Chloroplast 3. C6H12O6 9. CO2 4. O2 8. H2O 5. Cellular Respiration 6. Mitochondria 7. ATP
Titles: Photosynthesis and Cellular respiration Pg. 49 in INB Please make a diagram showing the relationship between Photosynthesis and Cellular Respiration Chloroplast Mitochondria An animal a plant ALL products Titles: Photosynthesis and Cellular respiration Show the arrows of the cycle Cellular Respiration