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Biology Chapter 8
Vocab for chapter 8 biology
| Question | Answer |
|---|---|
| Adenosine Triphosphate | Adenosine Triphosphate (ATP), an energy-bearing molecule found in all living cells. |
| Heterotroph | An organism that cannot synthesize its own food and is dependent on complex organic substances for nutrition. |
| Autotroph | A organism capable of making nutritive organic molecules from inorganic sources via photosynthesis (involving light energy) or chemosynthesis (involving chemical energy). |
| Photosynthesis | The synthesis of complex organic material using carbon dioxide, water, inorganic salts, and light energy (from sunlight) captured by light-absorbing pigments, such as chlorophyll and other accessory pigments. |
| Pigment | Any material from which a dye, a paint, or the like, may be prepared; particularly, the refined and purified colouring matter ready for mixing with an appropriate vehicle |
| chlorophyll. | The green pigment found in the chloroplasts of higher plants and in cells of photosynthetic microorganisms (e.g. photosynthetic bacteria), which is primarily involved in absorbing light energy for photosynthesis. |
| thylakoid | a flattened sac or vesicle lined with a pigmented membrane that is the site of photosynthesis, in plants and algae |
| stroma | The spongy, colorless matrix of a cell that functionally supports the cell. |
| NADP* | nicotinamide adenine dinucleotide phosphate.A coenzyme serves as an electron carrier in a number of reactions |
| light-dependent reactions | the first stage of photosynthesis, the process by which plants capture and store energy from sunlight. |
| light-independent reactions | he series of biochemical reactions in photosynthesis that do not require light to proceed, and ultimately produce organic molecules from carbon dioxide. |
| photosystem | functional and structural units of protein complexes involved in photosynthesis that together carry out the primary photochemistry of photosynthesis |
| Electron transport chain | An electron transport chain (ETC) couples a reaction between an electron donor (such as NADH) and an electron acceptor (such as O2) to the transfer of H+ ions across a membrane, through a set of mediating biochemical reactions. |
| ATP synthase | an important enzyme that provides energy for the cell to use through the synthesis of adenosine triphosphate |
| Calvin cycle | a metabolic pathway found in the stroma of the chloroplast in which carbon enters in the form of CO2 and leaves in the form of sugar. |