BioScience Exam 3 || with 100% Errorless Answers.

Distinguish between auto and heterotrophs correct answers Auto- makes their own food for energy Hetero- eats other organisms to gain energy Generalized formula for photosynthesis correct answers Energy + 6CO2 +6H2O --- C6H12O6 + 6O2 What are the reactants, products, and reducing and oxidizing agents correct answers Reactants- carbon dioxide and water Products- sugar and oxygen gas H2O gets oxidized CO2 becomes reduced Cell structures associated with photosynthesis correct answers Mesophyll (leaf tissue where chloroplasts are found) Stomata (openings where CO2 enters) Chloroplast (double membrane organelle where photosynthetic membrane) Stroma (fluid on the interior of chloroplast) Granum (stack of thylakoid) Thylakoid (contains chlorophyll) Chlorophyll (green pigment that absorbs light) Why pigment is important correct answers Absorbs light which activates the process of photosynthesis Light energy boosts electrons to "excited state" How do the structures of the photosystem harness energy? correct answers Channel the energy absorbed by pigments PS2- splits a water and absorbs light best at 680nm PS1- accepts the electron falling down from PS2 and excited by another photon -absorbs light best at 700nm and electron reduces NADPH Link photosystem to the electron transport chain Follow an electron through the photosystems correct answers Electrons pass from photosystem II to photosystem I in an electron transport chain. Light strikes antenna pigments in photosystem I; these pigments transfer the energy to the reaction center chlorophyll molecule of photosystem I. The reaction center chlorophyll releases two energized electrons, which are replaced by the electrons from photosystem II Compare and contrast ATP production in mitochondria and chloroplasts correct answers Compare and contrast the light reactions in the Calvin Cycle correct answers