BioPhotsynthesisRvw
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| what is the chemical formula for photosynthesis | 6CO2 + 6H2O ---> C6H12O6 + 6O2
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| where in a plant does photosynthesis take place | chloroplast
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| what is the required input for photosynthesis | sunlight, water, and carbon dioxide
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| what is the output of photosynthesis | oxygen and glucose
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| why is it said that abundance of life on earth wouldn't exist if we didn't have plants | plants give animals and other forms of life oxygen to breathe and food to eat. organisms get energy from the glucose in the plants
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| why do plants have multiple pigments inside their chloroplasts | multiple pigments absorb different wavelengths of light. Chlorophyll absorbs red, orange, blue, yellow light & reflects yellow and green light. Carotenoids absorb green, yellow, & blue light & reflect red, orange, & yellow light.
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| what role does water play in photosynthesis | water splits in order to produce the high energy electrons and hydrogens needed for photosynthesis to occur. water splitting releases oxygen gas to the atmosphere
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| what is the difference between ADP and ATP | ADP is less energy and one less phosphate than ATP (2 phosphates). ATP has lots of energy and 3 phosphates. energy is released when the last phosphate breaks off of the ATP
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| what is the role of NADPH in photosynthesis | NADPH is an electron carrier. It carries hydrogen and high energy electrons from the light dependent reaction to the Calvin Cycle. NADPH and NADP+ are both electron carriers
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| why is water so vitally important in photosynthesis | water needs to split in order to create the high energy electrons and hydrogens to help photosynthesis run properly
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| what role does carbon dioxide play in photosynthesis | carbon dioxide plays a big role in the Calvin Cycle (light independent). CO2 reacts with ATP, hydrogen, and high energy electrons to create glucose. Without CO2, there would be no glucose produced
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| what does the electron transport chain do in the process | The ETC helps move the ADP, ATP, NADP+, NADPH, and hydrogens to the different reactions (light independent and calvin cycle) in photosynthesis. Brings the high energy electrons, ATP, and hydrogen to the Calvin Cycle
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| why do leaves turn different colors in the fall? why don't leaves stay green? | because the chlorophyll is dying, and when the green pigments die off, the other pigments, such as carotenoids, show through, hence the color change. when plants hibernate, photosynthesis does not occur, therefore there is no need for chlorophyll
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| what 3 factors effect the rate of photosynthesis | temperature, amount of water, light intensity
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| how do electrons flow throughout photosynthesis | from the broken water to the NADPH to the Calvin Cycle
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| where are the chlorophyll found | thylakoid membrane
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| why do we see plants as green | chlorophyll refelcts the green wavelength
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| why does the thylakoid membrane become positively charged | because when water splits, a positive H+ ion is released into the membrane
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| guard cells around the stomata open and close due to | water going in and out of them.
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| what does absorbent mean | able to soak up substances, paper towels are absorbent
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| describe the role chloroplasts have in photosynthesis (include stroma, thylakoid and grana) | PS takes place in chloroplasts. Stroma- empty space in chloroplast, where CC takes place (light indep.) Thylakoid- little disks in chloroplast. Where pigm. (chloropyll and carotenoids) are found. Pigm. absorb sunl.. Where LD reac. takes place. Grana- stac
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| stroma | liquid part of the inside of a chloroplast
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| chlorophyll | chemical that absorbs light for photosynthesis
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| pigment | light-absorbing chemical
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| NADP+ | energy carrier cells use to transport high-energy electrons
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| autotrophs | organism that makes its own food
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| photosystem | cluster of pigments and proteins that absorbs light
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| thylakoid | a saclike photosynthetic membrane found in chloroplasts
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| ETC (electron transport chain) | move high-energy electrons between photosystems. energy carrier made as a result of photosystem 2
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| photosynthesis | a process of using the sun's energy to make food
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| ATP synthase | spins to provide the energy for adding a phosphate group to ADP
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