The Process of Photosynthesis

The Process of PhotosynthesisBiologyEssential QuestionHow do producers trap energy in glucose?

Objective: Investigate and explain cellular processes, including homeostasis, energy conversions, and synthesis of new molecules.The Process of PhotosynthesisPartReactantProductNotes1Light Reactions2Dark Reactions (Calvin Cycle)Light ReactionsLight energy is converted to chemical energy and temporarily stored as ATP and NADPH using electron transport chains.Water is split, and oxygen is released.It occurs in the thylakoid.Pigments that trap light energy are called chlorophyll and carotinoids.Light Reactions

The Process of PhotosynthesisPartReactantProductNotes1Light ReactionsH2O (water)O2 (oxygen)Light energy is converted to chemical energy and temporarily stored as ATP and NADPH using electron transport chainsOccurs in the thylakoidPigments that trap light energy are called chlorophyll and carotenoids 2Dark Reactions (Calvin Cycle)Dark Reactions (Calvin Cycle)Carbon dioxide (CO2) is broken apartThis is a form of carbon fixation.The Calvin cycle is a cyclic series of enzyme assisted reactions that use ATP and NADPH from the light reactions.The most important product is glucose (C6H12O6) which is the main source of energy for cellular processes.occurs in the stroma.Dark Reactions

The Process of PhotosynthesisPartReactantProductNotes1Light ReactionsH2O (water)O2 (oxygen)Light energy is converted to chemical energy and temporarily stored as ATP and NADPH using electron transport chainsOccurs in the thylakoidPigments that trap light energy are called chlorophyll and carotenoids 2Dark Reactions (Calvin Cycle)CO2 (carbon dioxide)C6H12O6 (glucose)Can happen without lightA form of carbon fixationSeries of enzyme assisted reactionsATP and NADPH from the light reactions are used to add energy to carbon compounds to make sugars and starchOccurs in the stromaRememberThese are Cornell notes, soThree questions on the left-hand sideSummary at the bottom of the page that answers the essential question.