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Chap 6 Lesson 1
Photosynthesis
| Question | Answer |
|---|---|
| Step 1 of the Light Energy cycle? | Light energy forces an electron to enter a higher enery level. "excited" |
| Step 2 of the Light Energy cycle? | The excited electron goes into the "primary electron acceptor. |
| Step 3 of the Light Energy cycle? | The primary electron acceptor donates the electron and outs it into the Electron Acceptor Chain. |
| Step 4 of the Light Energy cycle? | More light is shining on chlorophyll. A new (ETC) |
| Step 5 of the Light Energy cycle? | The excited electron in the 2nd (ETC) is brought into the Stroma. |
| Define Heterotroph | An organism that obtains organic food molecules by eating other organisms of their byproducts and that cannot synthesie organic compounds from inorganic materials |
| Define Granum | A stack og thylakoid in a chloroplast |
| Define Electron Transport Chain | A chain in the light energy cycle that electrons pass in a process that causes protons to build up on one side of the membrane |
| Define Light Reaction | In photosynthesis, causes ADP and NADH to transfrom into ATP and NADPH |
| Define Thylakoid | A membrane system found w/in chloroplast that contains the components for photosynthesis |
| Define Stroma | The solution that surrounds the thylakoind in a chloroplast |
| Define Primary Electron Acceptor | In chloroplasts, an acceptor of electron lost from chlorophyll a; found in the thylakoid membrane. |
| Define Photosystem | In the thylakoid mem. of chloroplast, a cluster of chlorophyll and other pigment molecules that harvest light energy for the light reaction of photosynthesis |
| Define Photosynthesis | Process by which plants, algae, and some bacteria use sunlight, CO2, water to produce carbohydrates and oxygen |
| Define Pigment | A substance that gives another or other mixture its color |
| Define Antotrophs | An organism that produces its own nutrients from inorganic substances or from the enviornment instead of counsuming other organisms |
| Define Chloroplasts | An organelle found in plants and algae cells where photosynthsis occurs |
| Define Chlorophyll | A green pignemt that is present in most plant cells, that give plants their characteristic green color and that react with sunlight, CO2, and water to form carbohydrates |
| Define Carotenoid | A class of pigments that are present in the thylakoid membrane of plants and aid in photosynthesis |
| Define Chemiosmosis | The production of carbohydrates through the use of energy from inorganic molecules instead of light |
| Chlorophyll A | Absorbs RED pigments |
| Chlorophyll B | Absorbs GREEN pigments |
| What is the equation for replacing electrons? | 2H2O = 4H+ + 4e- + O2 |
| What forms -electrons -protons -oxygen? | WATER (H2O) |
| What makes up ATP? | ADP + Phosphate |
Created by:
lea_michelle_63
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