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Photosynthesis
Questions on the photosynthesis topic
| Question | Answer |
|---|---|
| Where does photosynthesis take place? | The chloroplast |
| What does ATP stand for? | Adenine Triphosphate |
| What is the word equation for photosynthesis? | Carbon dioxide + Water---chlorophyll and light---> Oxygen + glucose |
| What is needed for photosynthesis to take place? | Chlorophyll and light |
| What is the balanced chemical equation for photosynthesis? | 6CO2 + 6H2O ------> 6O2 + C6H12O6 |
| How does CO2 enter the plant? | Through the stomata |
| How does water enter the plant? | Through the roots |
| Name stages of photosynthesis | The light stage and the dark stage |
| Where does the light stage take place? | The thylakoid membrane |
| Where does the dark stage take place? | The stroma |
| What does NADP+ stand for? | Nicotinamide Adenine Dinucleotide Phosphate |
| What is pathway 1 called? | Cyclic photophosphorylation |
| What is pathway 2 called? | Non-cyclic phosphorylation |
| What are the products of pathway 2? | Oxygen, ATP, NADPH |
| What are the products of pathway 1? | ATP |
| Explain how pathway 1 works | 1. light excites electrons (e-) 2. e- jump out of the chlorophyll and jump from electron acceptor to electron acceptor, converting ADP+P to ATP as it does 3. e- return to the chlorophyll before they run out of energy |
| Explain how pathway 2 works | 1. light excites the e- 2. e- leave the chlorophyll and jump from electron acceptor to electron acceptor, converting NDP+P to ATP 3. e- combine with NADP+ to form NADP- 4.Photolysis, H2O into O2, e-, H+ 5. e- goes back to chloropyll |
| Explain the dark stage | CO2----NADPH into NADP+, ATP into ADP+P---> C6H12O6 |
| What is another name for the dark stage? | The light independent stage or the calvin cycle |
| Explain photolysis | Splitting water with light (photo meaning light, lysis meaning to split) |