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LS Plant Biology

by: Laurel Medhurst

LS Plant Biology BTNY 1203

Laurel Medhurst
Weber State University
GPA 3.67


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Class Notes
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This 3 page Class Notes was uploaded by Laurel Medhurst on Wednesday October 28, 2015. The Class Notes belongs to BTNY 1203 at Weber State University taught by Staff in Fall. Since its upload, it has received 30 views. For similar materials see /class/230770/btny-1203-weber-state-university in Botany at Weber State University.

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Date Created: 10/28/15
problems faced by land plants water acquisition and conservation gas exchange support conduction sexual reproduction sporic life cycle in moss fern conifer angiosperm bryophytes Mosses Bryophyta Liverworts Hepatophyta Hornworts Anthocerophyta leptoids hydroids rhizoids cuticle stomata gametophyte sporophyte antheridium archegonium sperm egg sporangjum spore protonema totipotent asexual reproduction foot seta capsule egg venter neck gemmae elaters pioneer community seral stages climax community xerosere plant successions biotic abiotic primary succession secondary succession xerosere succession hydrosere succession poikilohydry cryptobiotic soil crusts soil fines humus nitrogen fixation cyanobacteria allelopathy Seedless Vascular Plants Ferns Pterophyta Horsetails Sphenophyta Whisk Ferns Psilotophyta Club Mosses Lycophyta vascular tissue transpiration stomata cuticle xylem phloem lignin rhizome strobilus homosporus heterosporous circinate vemation sori gymnosperms the importance of a seed pollen grain Conifers Coniferophyta Cycads Cycadophyta Ginkgo Ginkgophyta Gnetophytes Gnetophyta ovule primary growth secondary growth vessels tracheids deciduous evergreen dioecious monoecious microsporocyte microspore megasporocyte megaspore seed coat testa integuments cotyledon radicle plumule coleoptile coleorhiza scutellum hilum tap root system fibrous root system pericarp exocarp mesocarp endocarp simple fruit refer to your notes for the types of simple fruits compound fruit aggregate fruit multiple uit accessory fruit petiole blade sessile simple leaf compound leaf palmately pinnately parallel venation netted venation node internode totipotent vegetative reproduction refer to your notes for structures involved in vegetative reproduction generative cell tube cell pollen tube polar nuclei endosperm sepalmlyx petalcorolla stamen anther filament pistil stigma style ovary peduncle superior inferior ovary stratification receptacle solitary ower in orescence scari cation complete incomplete pollination seed bank perfect imperfect fertilization monoecious dioecious dormancy regular irregular A pollen grain is a A male gametophyte B male gamete C spore D very small seed A plant that can dry out enter a dormant stage and revive when it is rehydrated is A allelopathic B poikilohydric C impossible In a plant succession the plants that immediately follow the pioneer community are the A secondary succession B seral stage C climax stage Which cell division process is involved in vegetative reproduction A mitosis B meiosis In some leaves 3 or 5 major veins depart quotom a single point This pattern is A palmate B pinnate C parallel D compound E simple A leaf divided into several distinct lea ets that arise from a common point is A pinnately lobed B pinnately compound C palmately lobed D palmately compound E palmately complex The function of ANY fruit eshy or dry is A protection of the developing seeds B seed dispersal C food for the young seedling D A and B E A B and C Be able to recognize structures you have seen in sketches such as parts of a ower and parts of a seed What is the difference between a primary plant succession and a secondary plant succession The sequence of events given below summarize the steps in the life cycle of a fern Indimte above each arrow whether A mitosis B meiosis or C fertilization syngamy has occurred spore gt gametophyte gt sperm and eggs gt zygote gt sporophyte gt spores In what types of habitats do you find cryptobiotic soil crusts What are the main types of organisms found in cryptobiotic soil crusts Name three speci c advantages that the crust organisms provide to their ecosystem How do the organisms provide each of the advantages you gave Name two divisions of the gymnosperms Describe two ways in which the plumule can be protected while the seedling is growing underground In the table below indicate which generation is dominant gametophyte or sporophyte if the plant produces seeds yes or no and if free water is required for fertilization yes or no plant Which generation is Does this plant Is free water required fern conifer For plants that do not require free water for fertilization how do the sperm get to the egg Some seeds are dormant until stratification takes place What is stratification Why is it an important dormancy mechanism Give one example of each of the following types of fruit berry drupe pome legume These questions are based on The Birds and the Bees episode of The Private Life of Plants a What is the most likely pollinator of a robust ower with red petals and no scent b Many orchids don t offer a nectar reward to their insect pollinators and their pollen is packaged in a pollinius not the loose powder released like most owers therefore the pollen isn t available as a snack Despite the lack of food available quotom these orchid specific bees and wasps are quite willing to visit their orchid of choice How do these orchids manage to keep the insects interest Distinguish between monocots and dicots for each of the traits listed in the table below trait monocots dicots leaf venation number of cotyledons type of root system


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