Unit 5 - Part 1 – Photosynthesis Vocabulary Flash Cards Autotroph Auto = “Self” troph= “Feeders” PRODUCERS Living things that make their own food Examples: Plants, blue-green algae Heterotroph Hetero = “Different” troph = “Feeders” CONSUMERS Must eat food Examples: Humans, birds, fungi Adenosine Triphosphate (3 P’s) Carries energy in its chemical bonds When bond is broken between 2nd and 3rd Phosphate group, energy is released ATP Photo= Light Synthesis= to make Using light to make glucose (food) Photosynthesis C6H12O6 CO2 + H2O → C6H12O6 + O2 Pigment Protein that gives color Absorbs light Chlorophyll Thylakoid Membrane Green pigment in plants that absorbs high energy light Membrane where the LIGHT DEPENDENT REACTION of photosynthesis takes place Stroma Space where CALVIN CYCLE (Light Independent Reaction) takes place and makes glucose (sugar) “Stroma is the space where the cycle takes place” Another ENERGY carrier for photosynthesis Sun energy excites Hydrogen electrons NADPH Light Dependent Reactions Sunlight → Charges Battery Sun + ADP + P → ATP Sun + NADP + H⁺ → NADPH Takes place in the Thylakoids Uses charged “batteries” to fuel the Calvin cycle to make glucose (sugar) Does NOT need sunlight Light Independent Reaction Calvin Cycle Cycles 6 times to make glucose 6 CO2 are needed to make one C6H12O6