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CHAPTER 8 Cellular Energy
8-2 Photosynthesis
thylakoidgranumstromapigmentNADP+Calvin cycleCellular EnergyVocabularySection 2
JournalCreate a picture that shows the process of photosynthesis (what goes in, what comes out, etc)Start with this
JOURNALIn your own words, define photosynthesis
TIME MACHINECells are not born with a supply of ATP. So, where does the energy to make ATP come from? From the ____________ we eat. Organisms that obtain energy by consuming other living things are _____________________. Other organisms can produce food using energy from sunlight. These organisms are called _______________. foodheterotrophsautotrophs
Photosynthesis OverviewIn the process of photosynthesis, plants convert the energy of sunlight into chemical energy stored in the bonds of carbohydrates (food).
Photosynthesis Overview
JournalWrite the written and chemical equations for photosynthesis.
Photosynthesis occurs in pigmented structures called chloroplasts.
Photosynthesis occurs in two phases:Light-Dependent ReactionsLight-Independent Reactions
Phase One: Light-Dependent ReactionsLocation: ThylakoidLight energy is absorbed by the chloroplasts and converted into chemical energy in the form of ATP and NADPH.
Electron Transport & Chemiosmosis (See Page 225 in textbook)
Cellular EnergyPhase Two: The Calvin Cycle (Light Independent Reactions)Location: StromaIn the second phase of photosynthesis, called the Calvin cycle, energy is stored in organic molecules such as glucose.
Cellular Energy
Cellular EnergyRubiscoEnzymeConverts inorganic carbon dioxide molecules into organic molecules that can be used by the cell
Photosynthesis Summaryhttps://www.youtube.com/watch?v=i8c5JcnFaJ0
PHOTOSYNTHESISLIGHT-DEPENDENT REACTIONSCALVIN CYCLELOCATIONWHAT GOES IN?WHAT COMES OUT?
Alternative PathwaysC4 plantsCAM plantsOccur in environments in which the amount of water or carbon dioxide is insufficient. Plants have structural modifications that allow sufficient carbon dioxide uptake, while simultaneously minimizing water loss.
Quick lab, page 234
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