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chapter 6 section 1!
vocab in chapter 6
| Question | Answer |
|---|---|
| Photosynthesis | process in which autotrophs make their own food using the energy in light and CO2 and H2O |
| Photosynthesis Equation | CO2 + H2O LIGHT --> (CH2O)n + O2 |
| Van Helmont's Experiment | planted a seedling, measured the mass of the pot with dry soil, and after 5 years the mass gained about 75 kilograms. he concluded that most of the mass was from the water because that was the only thing he added to the pot |
| Joseph Priestly's Experiment | took a candle, placed a glass jar over it and watched the flame gradually die out; then found that if he placed a sprig of mint under the jar and allowed a few days to pass, the candle could be relighted and would remain lighted for a while |
| Autotrophs | organism that is able to use a source of energy to produce its food from inorganic raw materials |
| Heterotrophs | organism that cannot produce its own food but obtains energy from the food it eats |
| Pigments | colored substance that absorbs or reflects light |
| Chlorophyll II | principal pigment in the cells of photosynthetic autotrophs that captures light energy |
| AMP | the first step in the production of ATP involves adenosine monophosphat |
| ADP | when a second phosphate group is bonded to AMP, energy is stored in the bonds between the phosphate groups and a compound called adenosine diphosphate is formed |
| ATP | (adenine triphospate) compound that stores energy in cells |
| NADP+ | an electron carrier that plants use |
| NADPH | when NADP+ accepts a pair of high-energy electrons |
| light reaction | when hte energy of sunlight is captured and used to make energystoring compounds |
| dark reaction | the second stage of photosynthesis; wehn energy stored in NADPH adn ATP produce glucose |
| photosynthic membrane | contain chlorophyll located in the chloroplast |
| calvin cycle | another name for the dark reactions named after melvin Calvin |
| photosystems | clusters of pigment molecules in the photosynthetic membrane |
| calories | the amount of heat energy required to raise the temperature of 1 gram of water 1 degree celsius |
| glycolysis | glucose breaking down |
| respiration | the process that involves oxygen and breaks down food molecules to release energy |
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