cambell biology chapter 10 Flashcards
for exam #3
Terms : Hide Images [1]
| 2427657148 | photorespiration | A metabolic pathway that consumes oxygen and ATP, releases carbon dioxide, and decreases photosynthetic output | 0 | |
| 2427657149 | CAM | An adaptation in photosynthesis in many succulent plants in which the stomata are closed during the day to conserve water. | 1 | |
| 2427657150 | stroma | A dense fluid inside a chloroplast. | 2 | |
| 2427657151 | spectrophotometer | An instrument that measures the proportions of light of different wavelengths absorbed and transmitted by pigment solution. | 3 | |
| 2427657152 | photosystem | A light-capturing unit in a chloroplast's thylakoid membrane or in the membrane of some prokaryotes. | 4 | |
| 2427657153 | thylakoids | Suspended within the stroma is a membrane system made up of sacs called ____. | 5 | |
| 2427657154 | cyclic | A route of electron flow during the light reaction of photosynthesis that involves only photo system I and produces ATP but not NADPH or oxygen. | 6 | |
| 2427657155 | photons | Discrete particles of light. | 7 | |
| 2427657156 | Calvin Cycle | The second major stage in photosynthesis involving fixation of atmospheric carbon dioxide and reduction of the fixed carbon into carbohydrates | 8 | |
| 2427657157 | mesophyll | The tissue in the interior of the leaf. | 9 | |
| 2427657158 | photophosphorylataion | The process of generating ATP from ADP by using a proton-motive force generated across the thylakoid membrane during the light reaction of photosynthesis. | 10 | |
| 2427657159 | autotroph | An organism that obtains organic food molecules without eating other organisms or substances derived from them. They derive their energy from the sun. | 11 | |
| 2427657160 | visible light | The segment of wavelength between 380 nm to 750 nm is known as ______. | 12 | |
| 2427657161 | light harvesting | A complex of proteins associated with the pigment molecules that captures light energy and transfers it to reaction-center pigments in a photosystem. | 13 | |
| 2427657162 | rubisco | The enzyme that catalyzes the first step of the Calvin Cycle. | 14 | |
| 2427657163 | carotenoids | An accessory pigment, either yellow or orange, in the chloroplasts of plants and some prokaryotes. It broadens the spectrum of colors that can drive photosynthesis. | 15 | |
| 2427657164 | electromagnetic spectrum | The entire range of radiation. | 16 | |
| 2427657165 | chlorophyll | A green pigment located in plants, algae and some protists used in photosynthesis. | 17 | |
| 2427657166 | wave length | The distance between crests of electromagnetic waves. | 18 | |
| 2427657167 | absorption spectrum | A graph plotting a pigment's light absorption versus wavelength. | 19 | |
| 2427657168 | photosynthesis | The conversion of light energy to chemical energy that occurs in plants, algae and certain prokaryotes. | 20 | |
| 2427657169 | carbon fixation | The initial incorporation of carbon dioxide into organic compounds. | 21 | |
| 2427657170 | chloroplast | An organelle found in plants and some protists that absorbs sunlight and uses it to synthesize organic compounds. | 22 | |
| 2427657171 | stomata | Microscopic pores in leaves by which carbon dioxide enters and oxygen exits. | 23 | |
| 2427657172 | heterotroph | An organism that obtains organic food molecules by eating other organisms or substances derived from them. | 24 |