Chapter 5 Photosynthesis & Cellular Respiration
Energy & Living Systems Must Knows
1. Analyze the flow of ENERGY through living systems.– P _____
2. Compare & Contrast AUTOTROPHS and HETEROTROPHS.
– P_____
3. Describe the role of ATP in living organisms– P____
4. Explain how ENERGY is released from ATP– P____
Energy in Living Systems
• List as MANY forms of ENERGY as you can!
Flow of Energy Through a System
• Do you recall METABOLISM????– Metabolism is the sum of ALL chemical processes
in an organism!
• Organisms are classified in two categories.1. They create their OWN energy2. They have to EAT to gain energy
Autotrophs & Heterotrophs
• Autotrophs– Create their OWN
energy– Most create energy from
sunlight, some can create energy from INORGANIC chemicals
• Heterotrophs– Have to EAT to get their
energy– Must create energy
through CELLULAR RESPIRATION
What is ATP? How does it work?
• ATP is energy for the cell• It is created from GLUCOSE
ATP
• ATP releases energy by breaking a phosphate group and becoming ADP.
Photosynthesis Must Knows1. Explain how energy is captured and released from
the sun.– P _____
2. Explain the function of an ELECTRON TRANSPORT CHAIN.
– P_____
3. Explain how NRG is produced through the CALVIN CYCLE.
– P____
4. Identify THREE factors that affect PHOTOSYNTHESIS– P____
Question for Thought?
• Why do leaves change colors?
Photosynthesis
Chloroplast p 99
Chloroplast
• Photosynthesis takes place in the CHLOROPLAST of plants– Inside the CHLOROPLAST are THYLAKOIDS– THYLAKOIDS is where ENERGY is captured
Photosynthesis
• Photosynthesis occurs in THREE stagesStage 1 – NRG captured from sunlight
Stage 2 – Light NRG is converted to Chemical NRG LIGHT Dependant
Stage 3 – Chemical NRG is used to create organic compoundsLIGHT Independant
Stage 1 – NRG from Sun
• Pigments are substances that absorb light. Pigments absorb some colors and reflect all others. You see the color that is REFLECTED
Stage 2 Electron Transport Chains - ETC
• Electron Transport Chains are used to convert Light to Chemical NRG
Stage 3 – Calvin Cycle – Light Independent
ChloropIast
CO2 Enters the Cycle
Energy Input
5-CarbonMoleculesRegenerated
Sugars and other compounds
6-Carbon SugarProduced
Chemical Equation for Photosynthesis
6CO2 + 6H2O + Energy = C6H12O6 + 6O2
Does this look familiar?
Energy & Living Systems Must Knows
1. Summerize how ATP is created from GLUCOSE.– P _____
2. Explain the role of FERMENTATION. – P_____
3. Describe the role of OXYGEN in AEROBIC RESPIRATION
– P____
Opener p ___
• Describe the function of Cellular Respiration.– Anaerobic vs. Aerobic?
• Describe the function of Photosynthesis.
• How could the two work together???
Poster Assessment – Cell Respiration & Photosynthesis
Photosynthesis (3 Parts)1-Sunlight2-Chemical3-Carbohydrates & O2
Cellular Respiration4-Glycolosis
5-Anaerobic - Lactic Acid6-Aerobic – Krebs Cycle,
36 ATPCO2