AP Bio Plants Flashcards
Terms : Hide Images [1]
9619213829 | transpiration | Evaporation of water from the leaves of a plant | 0 | |
9619218104 | water potential | the physical property that predicts the direction in which water will flow | 1 | |
9619221921 | cohesion | attraction between molecules of the same substance | ![]() | 2 |
9619224609 | adhesion | An attraction between molecules of different substances | ![]() | 3 |
9619232793 | capillary action | The ability of a liquid to flow against gravity up a narrow tube | 4 | |
9619235587 | germination | the process whereby seeds or spores sprout and begin to grow | 5 | |
9619247907 | plasmodesmata | channels through cell walls that connect the cytoplasms of adjacent cells | ![]() | 6 |
9619254481 | ethylene | plant hormone that stimulates fruits to ripen | 7 | |
9619265991 | circadian rhythm | the daily biological rhythms that occur in a 24-hour period | 8 | |
9619272157 | root pressure | the upward force that results as water enters the roots by osmosis | 9 | |
9619275767 | root hair | small hairs on a root that produce a large surface area through which water and minerals can enter | ![]() | 10 |
9619281071 | stomata | Microscopic pores in the leaf which lets CO2 in and O2 out. Also where water is lost. | ![]() | 11 |
9619292446 | photoperiodism | a response by an organism to the duration and timing of light and dark conditions | ![]() | 12 |
9619298815 | phototropism | tendency of plants to grow toward a source of light | 13 | |
9619312968 | plant signal transduction | ![]() | 14 | |
9619326140 | spongy mesophyll | Loose tissue beneath the palisade layer of a leaf; has many air spaces between its cells for gas exchange | ![]() | 15 |
9619345459 | mycorrhizae | network of hyphae and plant roots that helps plants absorb water and minerals from soil | 16 | |
9619400368 | phytochrome | plant pigment responsible for photoperiodism | ![]() | 17 |
9619413144 | xylem | vascular tissue that carries water upward from the roots to every part of a plant | 18 | |
9619428292 | phloem | (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed | 19 | |
9619443074 | light independent reactions | second stage of photosynthesis; use ATP and NADPH to assemble sugars from water and CO2 | 20 | |
9619445637 | light dependent reactions | reactions of photosynthesis that use energy from light to produce ATP and NADPH | 21 |