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photosynthesis
photosynthesis notes
| Question | Answer |
|---|---|
| What biological process converts carbon dioxide and water into glucose and oxygen using sunlight? | Photosynthesis |
| In which plant cell organelle do both stages of photosynthesis occur? | Chloroplast |
| Where in the chloroplast do the light-dependent reactions take place? | Thylakoid membrane |
| Where in the chloroplast does the light-independent Calvin cycle take place? | Stroma |
| What enzyme, considered the most abundant protein on Earth, catalyzes carbon fixation by binding CO2 to RuBP? | RuBisCO |
| What electron carrier molecule is reduced from NADP+ during the light-dependent reactions? | NADPH |
| What copper-containing protein receives electrons from the cytochrome b6f complex in the light reactions? | Plastocyanin |
| What 3-carbon sugar produced in the Calvin cycle leaves the stroma to form glucose? | G3P (Glyceraldehyde 3-phosphate) |
| What specialized leaf anatomy, featuring bundle-sheath cells surrounding vascular bundles, is used by C4 plants? | Kranz anatomy |
| Which enzyme in C4 and CAM plants fixes carbon dioxide into oxaloacetate without binding to oxygen? | PEP carboxylase |
| What carbon fixation pathway used by desert plants opens stomata at night to store CO2 as malic acid? | CAM (Crassulacean Acid Metabolism) |
| What wasteful process occurs when RuBisCO binds to oxygen instead of carbon dioxide, forming phosphoglycolate? | Photorespiration |
| What diagram illustrates the energy levels of electrons transferred through Photosystems II and I? | Z-scheme |
| What term describes sea slugs that retain functioning chloroplasts from ingested algae to perform photosynthesis? | Kleptoplasty |
| Which 18th-century Dutch scientist is credited with discovering photosynthesis? | Jan Ingenhousz |
| What structural ring surrounds the central magnesium ion in a chlorophyll molecule? | Porphyrin ring |
| What metal ion sits at the center of chlorophyll's porphyrin ring? | Magnesium |
| What high-energy molecule synthesized by ATP synthase during the light reactions fuels the Calvin cycle? | ATP |