Term
| Sporophytes produce spores by |
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Definition
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Term
| Gametophytes produce egg and sperm cells by |
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Definition
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Term
| The sporophyte generation is (diploid or haploid) |
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Definition
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Term
| The gametophyte generation is (diploid or haploid) |
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Definition
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Term
| Have no water and nutrient support structures |
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Definition
| byrophytes (nonvascular plants) |
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Term
| Include hornworts, liverworts, mosses |
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Definition
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Term
| Vascular plants which do not produce seeds |
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Definition
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Term
| Wind-dispersed pollen carries sperm to stationary egg cone |
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Definition
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Term
| multicellular haploid stage in the life cycle of plants |
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Definition
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Term
| a flowering vascular plant |
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Definition
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Term
| nonflowering seed plant such as a conifer, cycad, or ginko |
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Definition
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Term
| pores in the leaves & stems of plants that allow gas exchange but close when water is scarce, reducing amount of water loss due to evaporation |
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Definition
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Term
| hard material embedded in the cell walls of vascular plants. |
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Definition
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Term
| Multicellular, dependent embryos distinguish plants from |
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Definition
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Term
| Plants' early adaptations to life on land (3) |
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Definition
| roots or rootlike structures, cuticle, stomata |
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Term
| Plants' later adaptations to life on land (2) |
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Definition
| conducting vessels, lignin |
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Term
| Consists of cork cells; cork and cork cambium |
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Definition
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Term
| Tissue system that is thin-walled, alive at maturity and carry out most of the plants metabolic activities including photosynthesis, secretion of hormones, support and storage |
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Definition
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Term
| Tissue system with unevenly thick walls, alive at maturity. Important source of support, i.e. strings in celery stalks. |
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Definition
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Term
| Tissue with thick, hard cell walls, lignin, and dead at maturity. Support and strengthen plant with "stone cells" |
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Definition
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Term
| Transports specifically water and minerals |
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Definition
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Term
| Transports sugars and amino acids dissolved in water |
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Definition
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Term
| Not technically a wood; has high amount of fibers with lots of lignin |
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Definition
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Term
| central root with small branches |
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Definition
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Term
| If a strip of bark is removed from all around a tree trunk, what part of the plant would die first and why? |
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Definition
| Roots - they would no longer be able to receive carbohydrates from the leaves, as the phloem would be destroyed. |
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Term
| Process by which water enters root cells |
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Definition
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Term
| Process by which roots absorb minerals. Requires energy. |
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Definition
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Term
| What is the driving force for water transport in the xylem? |
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Definition
| transpiration from the leaves |
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Term
| The entry of water into guard cells is regulated by the changes in the __________ content of the guard cells |
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Definition
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Term
| Pressure flow for sugar transport moves from source to |
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Definition
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Term
| What is a disadvantage of asexual reproduction? |
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Definition
| genetically identical offspring |
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Term
| During alternation of generations, zygotes are formed by |
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Definition
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Term
| The function of a flower is to attract |
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Definition
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Term
| Megaspores develop into the (male or female) gametophyte |
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Definition
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Term
| Microspores develop into the (male or female) gametophyte |
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Definition
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Term
| In sexual reproduction, which process (sporophyte or gametophyte) is dominant? |
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Definition
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Term
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Definition
| sepals, petals, stamen, carpel |
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Term
| Undifferentiated, perform mitotic cell division, form differentiated cells for particular functions |
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Definition
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Term
| Meristematic cells are located in |
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Definition
| apical meristems in tips of shoots and roots |
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Term
| Results from the division and differentiation of cells from apical meristems |
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Definition
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Term
| Results from the division and differentiation of lateral meristems |
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Definition
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Term
| Tissue system which forms the outer covering of the plant body. After secondary growth, it becomes a multi-layered covering of cork. |
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Definition
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Term
| Tissue system in which cell types include parenchyma, collenchyma, and sclerenchyma. Makes up most of a young plant during primary growth. |
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Definition
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Term
| Carry water, minerals, and photosynthetic products to and from leaf. |
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Definition
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Term
| The part of a primary root or stem located between the epidermis and vascular cylinder. |
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Definition
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Term
| Innermost layer of small, close fitting cells of the cortex of the root that form the ring around the vascular cylinder. |
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Definition
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Term
| Stomata regulate these three gases in and out of the leaf. |
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Definition
| carbon dioxide, oxygen, and water vapor |
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Term
| Protective sheath surrounding the shoot in monocot seeds, allowing the shoot to push aside soil particles as it grows. |
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Definition
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Term
| leaflike structure in a seed that absorbs food molecules from endosperm and transfers them to growing embryo |
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Definition
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Term
| in flowering plants, the fusion of two sperm nuclei with two nuclei of the female gametophyte. One set produces the zygote, the other a triploid endosperm cell. |
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Definition
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Term
| A fruit develops from this part of the flower. |
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Definition
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Term
| Three requirements to break seed dormancy. |
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Definition
| drying out period, exposure to prolonged cold, seed coat disruption |
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Term
| Water absorption (during germination?) |
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Definition
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Term
| Does the flesh of an apple provide carbohydrates for the growing tree? |
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Definition
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Term
| Hormone that regulates seed dormancy. |
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Definition
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Term
| Hormone that regulates germination. |
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Definition
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Term
| Control direction of root and shoot growth |
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Definition
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Term
| Three benefits of coordinating flowering in plant populations |
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Definition
| enhanced cross pollination, efficient pollinator attraction, adequate time for seeds to mature ensured |
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Term
| A pigment in leaves that serves as a light-detecting system for plants. |
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Definition
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Term
| Hormone which induces fruit ripening. |
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Definition
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Term
| A decline in these hormones and an increase in this one brings about senescence. |
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Definition
| Decline in auxin and cytokinin; increase in ethylene |
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Term
| Hormone that induces abscission. |
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Definition
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Term
| Male gametophyte in flowering plants |
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Definition
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Term
| Female gametophyte in a flowering plant. |
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Definition
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Term
| Necessary for fertilization |
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Definition
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Term
| Hormone that promotes phototropism and gravitotropism in shoots and roots |
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Definition
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Term
| Hormone that promotes apical dominance. |
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Definition
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Term
| Hormone which retards senescence |
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Definition
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Term
| Hormone that promotes sprouting of lateral buds and cell division |
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Definition
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Term
| Promotes endosperm and embryo development |
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Definition
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Term
| Hormone which inhibits cell elongation. |
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Definition
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Term
| Hormone responsible for the formation of hook in dicot seedlings. |
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Definition
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Term
| Hormone that promotes elongation of stems and germination of seeds |
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Definition
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Term
| Group of plants with "naked seeds" |
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Definition
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Term
| The largest group of these are the conifers |
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Definition
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Term
| A algae/fungi composite organism which grows on rocks, tree trunks, and the ground |
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Definition
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Term
| A fungus-plant mutualism in which fungi receive carbohydrates from plant associates. |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| Organisms which eat dead organic material |
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Definition
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Term
| The only organism group which can decompose dead trees |
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Definition
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