AP Bio Photosynthesis Exam Practice Questions and Answers | 100% Pass

AP Bio Photosynthesis Exam Practice Questions and Answers | 100% Pass What is the chemical equation for photosynthesis in words? - Answer️️ -water+carbon dioxide+light=oxygen and sugar What is the primary pigment found in cells that capture the sun's energy? - Answer️️ - chlorophyll What reaction occurs in thylakoids? - Answer️️ -light-dependent Where does the calvin cycle occur? - Answer️️ -stroma What two type of energies does the calvin cycle use? - Answer️️ -ATP and NADPH What does the calvin cycle do? - Answer️️ -converts carbon dioxide into sugars what molecule does light-dependent reactions split and what does it produce? - Answer️️ -water and oxygen What does light-dependent reactions convert? - Answer️️ -ADP and NADP+ into ATP and NADPH What three factors affect the rate of photosynthesis? - Answer️️ -intensity of light, amount of water, temperature carbon fixation - Answer️️ -converting carbon dioxide into sugars redox reaction - Answer️️ -requires energy what type of reaction is carbon fixation? - Answer️️ -redox reaction ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM Page | 2 what happens in light reactions - Answer️️ -one molecule of chlorophyll absorbs one photon and loses one electron light-dependent reactions - Answer️️ -occur in the thylakoid membranes of the chloroplasts and use light energy to synthesize ATP and NADPH How are the cyclic cylce and non-cylic cycle different? - Answer️️ -Cyclic generates only ATP, and no reduced NADP (NADPH) is created. Only in photo 1. cyclic cycle - Answer️️ -returns back to photosystem one. Cycle. Non-cyclic cycle - Answer️️ -the photons are captured in the light-harvesting antenna complexes of photosystem II by chlorophyll and other accessory pigments. photoinduced charge separation - Answer️️ -an electron is transferred to the primary electron-acceptor molecule, pheophytin. Non-cyclic. The light reactions of photosynthesis supply the Calvin cycle with ____ - Answer️️ - ATP and NADPH What is the correct sequnece of the flow of electrons during photosynthesis? - Answer️️ -H20-NADPH-Calvin cycle Cooperation of the two photosystems of the chloroplast is required for - Answer️️ - reduction of NADP+ In "mechanism" photophosphorylation is most similar to ___ - Answer️️ -oxidative phosphorylation in cellular respiration In what respects are the photosynthetic adaptations of the C4 plants and the CAM plants similar? - Answer️️ -both make most of their sugar in the dark ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM Page | 3 which process is most directly driven by light energy? - Answer️️ -removal of electrons from membrane-bound chlorophyll molecules Chloroplast is to ____ as mitochondria is to cellular respiration - Answer️️ - photosynthesis What color of light is least effective in driving photosynthesis? - Answer️️ -green How would you expect the relative abundance of C3 versus C4 and CAM species to chnage in a geographic region whose climate becomes much hotter and drier? - Answer️️ -C4 and CAM would replace many of the C3 species How does the ETC help produce ATP? - Answer️️ -As the electrons fall down the chain to a lower energy level they produce ATP since the fall is exergonic. photosystems - Answer️️ -how chlorophyll, proteins, and small organic molecules are organized reaction center - Answer️️ -where the first light-driven chemi