Photosynthesis: Light Reaction Events (Lesson 2) PDF

LESSON 2 PHOTOSYNTHESIS: LIGHT REACTION EVENTS  Unpacked Objectives Content Standards At the end of the lesson students will be able to: ATP-ADP Cycle, Photosynthe...

LESSON 2 PHOTOSYNTHESIS: LIGHT REACTION EVENTS  Unpacked Objectives Content Standards At the end of the lesson students will be able to: ATP-ADP Cycle, Photosynthesis and Respiration. Describe the patterns of electron flow through light reaction events. Complete the electron transport chain diagram for light-dependent Learning Competencies reactions. Recognize the importance of light- dependent reactions of Describe the patterns of electron photosynthesis in living things. flow through light reaction events Create a diagram of light-dependent (STEM_BIO11/12-IIa-j-4) reactions. Picture Analogy In which part of the cell does photosynthesis happens? In which part of the cell does photosynthesis happen? What energy is needed by photosynthetic organism during the process of photosynthesis? What energy is needed by photosynthetic organism during the process of photosynthesis? What are the materials needed during photosynthesis? What are the materials needed during photosynthesis? WHY ARE PLANTS IMPORTANT TO US?  WHY ARE PLANTS IMPORTANT TO US? It is a source of food for almost all organism in the planet.  WHY ARE PLANTS IMPORTANT TO US? It provides resources for humans with aesthetic and economic value.  WHY ARE PLANTS IMPORTANT TO US? It provides habitat for different organism.  WHY ARE PLANTS IMPORTANT TO US? It’s role in the biogeochemical cycle.  WHY ARE PLANTS IMPORTANT TO US? It maintains the earth’s atmosphere through photosynthesis. WHY ARE PLANTS IMPORTANT TO US? Shelter Food Clothing Resources of income  TRY ME: Photosynthesis is a process of making food in plants. Plants use (1)________from the sun, along with (2)_____ in the soil and a gas called (3)________ to make (4)___________. During this process, (5)_______ is released into the air. PHOTOSYNTHESIS: LIGHT REACTION EVENTS CHLOROPHYLL The green pigment that is responsible in the process of photosynthesis.  Define Me: chloroplast solar energy plastids photosynthesis chlorophyll heterotrophic nutrition leaves (Biosphere’s consumer) mesophyll autotrophic nutrition stomata (Biosphere’s stroma producers/self- feeders) thylakoids photoautotrophs grana (singular: granum) Light-Dependent Reactions electromagnetic radiation visible light Xray ultraviolet radiation green plants, algae, and cyanobacteria chlorophyll a pigment light-dependent reaction photosystem II photosystem I photon  Photosystem 1 and 2 Location: Absorbing Wavelength Photosystem 1: Photosystem 1 is located on the outer surface of the thylakoid Photosystem 1: Pigments absorb longer membrane. wavelengths of light (>680 nm). Photosystem 2: Photosystem 2 is located Photosystem 2: Pigments absorb shorter on the inner surface of the thylakoid wavelengths of light (