BIOL 198 Module 6 Objectives

BIOL 198 Module 6 Objectives Examine the symbiotic interaction of algae and fungi - answerLichen is a relationship between fungi & autotrophs Algae make food & fungi gives it a home Role of lichens - answerThey break down soil for the next organism Characteristics of algae - answerEukaryote Has cell wall, single & multi cellular, nucleus, mitochondria, autotrophic, aquatic Role of algae - answerPrimary producer, makes CO2, carbs Food source for fish Understand the evidence supporting the hypothesis that land plants and aquatic green algae evolve from a common ancestor - answerBoth eukaryotic, autotrophic, cell walls, same photosynthetic pathways, DNA evidence Describe the environmental challenges against living on land and adaptations plants have - answerDessication- waxy covering to protect from losing H2O structural support(gravity)- reinforced cell walls radiation- making sure life cycle is to avoid haploid reproduction- gametes that swim & ones that don't transport of H2O- apical & lateral meristems Describe the four main categories of plants that are displayed in the studio and provide and example of each - answerBryophtyes- small, mosses Seedless vascular- vascular system, homosporous, ferns, seedless plants Gymnosperms- vascular system, have seeds, heterosporous, trees Angiosperms- have seeds, heterosporous, flowers, fruits Understand the main differences in the life cycles of bryophytes, seedless vascular, gymnosperms, angiosperms - answerHave seeds or not, reproduction: asexual or sexual, homosporous or heterosporous Learn the difference between the sporophyte and gameophyte generations of plants - answerSporophyte: haploid, meiosis, zygote Gameophyte: diploid, mitosis, gamete Summarize the evolutionary trends among plants - answerLand--->water--->vascular tissue Define vegetative(asexual) reproduction - answermitosis, Only one plant is involved and the offspring is the result of one parent Advantage: faster reproduction rate= eye of potato Disadvantage: genetic diversity is very low, identical Learn parts of plant - answerPeticole- between leaf and stem Internode- space on stem between 2 leaves Shoot system- stem Root system- roots Learns parts of flower - answerPetal Sepal- leaves under flower Stigma- pollen Style- long tube connected to stigma Peduncle- stem Female reproductive: ovules, ovaries Male reproductive: anther, filament= stamen Understand the fundamentals of pollination - answerPollen goes down to ovary & fuses with diploid zygote Understand the fundamentals of fertilization - answerPollen contacts the ovules(eggs) Identify the basic structures of seed and fruits and state the function of those structures - answerSeed: cotyledons, endosperms, seed coat Fruit: dispersal, nutrient tissue Explore the basic processes of seed germination and identify the structures of developing monocot and eudicot seedlings - answerthe process of resuming growth and development after a period of dormancy. Germination for different species is triggered by different environmental conditions such as soil moisture, soil temperature, oxygen levels and the amount of daylight. Often germination begins with imbibition, the uptake of water into the seed. Define plant meristems and differentiate between primary and secondary plant growth - answerMeristem- zone of cell division- tip of plant Apical meristem- elongate of roots & shoots