Term
| What is the purpose of photosynthesis? |
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Definition
| To convert solar energy to chemical energy |
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Term
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Definition
| An organism that can make its own food |
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Term
| What organisms are autotrophs? |
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Definition
| Plants, bacteria, some protists |
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Term
| In which organelles does photosynthesis occur? |
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Definition
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Term
| Where are chloroplasts found? |
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Definition
| In the cells of the leaves |
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Term
| What color are chloroplasts? |
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Definition
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Term
| What is the main chemical in chloroplasts? |
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Definition
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Term
| What is the function of chlorophyll? |
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Definition
| To absorb and convert energy |
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Term
| What color is the surface of a leaf? |
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Definition
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Term
| What is the most important chemical in the process of photosynthesis? |
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Definition
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Term
| Is photosynthesis endergonic or exergonic? |
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Definition
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Term
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Definition
| Photons, bundles of solar energy, that travel in wavelength patterns |
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Term
| High energy photons tend to travel in what kind of wave lengths? |
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Definition
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Term
| Wavelength determines color of light. What color do you expect a low energy wavelength to be? |
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Definition
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Term
| What is the only source of O2 from the atmosphere? |
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Definition
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Term
| How is photosynthesis related to cell respiration? |
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Definition
| Cell respiration breaks glucose down into carbon dioxide and water, photosynthesis turns CO2 and H20 into glucose. They are the opposite of each other, using pretty much opposite reactions |
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Term
| What are the 2 stages of photosynthesis? |
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Definition
| The light dependent reactions and the light independent actions |
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Term
| Light dependent actions require what? |
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Definition
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Term
| What happens in light dependent reactions? |
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Definition
| Chlorophyll absorbs solar energy, causing e- to jump to a higher energy level, or "the excited state" where it is unstable, it gets passed down the electron transport chain, releasing excess energy all the way, that the cell can save up. |
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Term
| During which step of photosynthesis is oxygen produced? |
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Definition
| During the light-dependent reaction |
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Term
| What happens in light independent reactions? |
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Definition
| The glucose (sugar) is built using carbon dioxide from the air and energy (the short term energy created during the light dependent reactions) |
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Term
| Chlorophyll can't absorb what kind of light? |
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Definition
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Term
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Definition
| A chlorophyll, plus all the associated electron transport chain |
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Term
| How many different photosystems are there? |
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Definition
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Term
| How does photo-system 2 work? |
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Definition
1. Light energy is absorbed by clorophyll, which is passed on to the electron.
2. Electrons are passed down the electron chain, working the pumps, passing H+ across the membrane. H+ rushing back in through the ATP synthase (hole in the dam) generate ATP
3. Out of energy electrons are passed on to another chlorophyll. |
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Term
| How does photo system 1 work? |
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Definition
| Electrons that are out of energy having completed photo system 2 are excited by light photons. They get passed down a different electron transport chain, and generate NADPH |
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Term
| Where do the electrons that pass through photosystems come from? |
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Definition
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Term
| What are the short term energy products produced in photosynthesis? |
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Definition
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Term
| When is O2 produced during photosynthesis? |
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Definition
| As a waste product of the light dependent reactions |
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Term
| What do you call the light independent cyclical cycle of reactions? |
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Definition
| The Calvin Cycle or the C3 cycle |
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Term
| Why do they call the Calvin Cycle cyclical? |
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Definition
| Because many of the chemicals are going to be used over and over. |
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Term
| Where does the energy to power light independent reactions come from? |
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Definition
| From the short term ATP and NADPH that was created during the light dependent reactions |
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Term
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Definition
| a 3 carbon chemical which is the result of photosynthesis, made from carbon dioxide. Small, high energy, versatile. |
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Term
| What do plants do with G3P? |
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Definition
| 90% to glucose, but also made into other sugars, fats, or amino acids. |
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Term
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Definition
| taking carbon out of the air and putting them together |
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Term
| do plant cells use photosynthesis and cell respiration both? |
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Definition
| Yes, because they have both mitochondria and chloroplasts |
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Term
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Definition
| Pores in plant cells that allow gasses to pass through. |
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Term
| The general equation for cellular respiration is: |
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Definition
| one glucose molecule plus six oxygen molecules produces six carbon dioxide molecules, six water molecules, and approximately 36-38 molecules of ATP. |
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