BIO 102 General Biology II Updated Edition (Tidewater Community College)
3rd Edition
ISBN: 9781259614064
Author: Tidewater Community College
Publisher: MCG CUSTOM
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Chapter 19, Problem 12WIO
Summary Introduction
To determine:
Either support or refute the statement, the pollen grains of
Concept introduction:
Pollen is male gametophyte which fuses with the egg cells through the pollen tube. This is called fertilization. Spores consist of strong, tough walls, which are protected from drying out.
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Most of the approximately 900 species of gymnosperms are conebearing plants. On the surfaces of their cone scales are ovules, which later become seeds. These ovules are said to be naked because they are not completely enclosed by diploid tissue (as the ovules of angiosperms are). This characteristic gives the gymnosperms their name; gymnos is a Greek word meaning naked, and sperma means seed. Botanists now divide the gymnosperms into four groups: conifers, cycads, ginkgos, and gnetophytes.
http://botit.botany.wisc.edu/botany_130/diversity/plants/mosses.html
Make a complete moss life cycle with the following phases and structures. Note: download the images of Mnium from this link and arrange them in the exact sequence to make the lifecycle. Lifecycle structures with cell division: Meiosis, fertilization within archegonium, capsule (sporangium), spores (n), protonema (n) (Image), male gametophyte (n) (Image), female gametophyte (n) (Image), antheridia (Image), archegonia (Image), sperm, egg, water, zygote (2n), embryo, young growing sporophyte (2n), mature sporophyte (2n) (Image), rhizoids. You can insert the non-image part, using the textbox and fill out the suitable s text. For symbol, click on the shape option and inter in your lifecycle diagram at the required place
Describe the orders ANGIOSPERMS-EUDICOTS : ERICALES, GENTIANALES, LAMIALES, SOLANALES, APIALES AND ASTERALES in terms of plant habit, reproductive type (monoecius/dioecius), leaf type, leaf shape, floral characteristics, fruit morphology, seed size/shape, and other distinct features.
Chapter 19 Solutions
BIO 102 General Biology II Updated Edition (Tidewater Community College)
Ch. 19.1 - Prob. 1MCCh. 19.1 - Prob. 2MCCh. 19.1 - How does vascular tissue adapt plants to land?Ch. 19.1 - Describe the reproductive adaptations of plants.Ch. 19.2 - Describe the three main groups of bryophytes.Ch. 19.2 - Prob. 2MCCh. 19.3 - Describe the four groups of seedless vascular...Ch. 19.3 - Prob. 2MCCh. 19.3 - Prob. 3MCCh. 19.4 - What are the characteristics of gymnosperms?
Ch. 19.4 - What are the four groups of gymnosperms?Ch. 19.4 - Prob. 3MCCh. 19.4 - What happens during and after pollination in...Ch. 19.5 - Prob. 1MCCh. 19.5 - Prob. 2MCCh. 19.5 - Prob. 3MCCh. 19.5 - Prob. 4MCCh. 19.6 - Prob. 1MCCh. 19.6 - Prob. 2MCCh. 19 - Which of the following is NOT a similarity between...Ch. 19 - Prob. 2MCQCh. 19 - What conditions did plants face when they moved to...Ch. 19 - Prob. 4MCQCh. 19 - Prob. 5MCQCh. 19 - Prob. 6MCQCh. 19 - Prob. 7MCQCh. 19 - Reproduction in a pine tree is associated with a....Ch. 19 - 9. What is a key adaptation that is unique to the...Ch. 19 - What plant group is correctly matched with an...Ch. 19 - What characteristics do all land plants have in...Ch. 19 - Prob. 2WIOCh. 19 - How are terrestrial habitats different from...Ch. 19 - List the characteristics that distinguish the four...Ch. 19 - Prob. 5WIOCh. 19 - A fern plant can produce as many as 50 million...Ch. 19 - How do the adaptations of gymnosperms and...Ch. 19 - Prob. 9WIOCh. 19 - The immature fruit of the opium poppy produces...Ch. 19 - Scientists have studied plant populations that...Ch. 19 - Prob. 12WIOCh. 19 - Prob. 13WIOCh. 19 - Compare and contrast the life cycles of the four...Ch. 19 - Prob. 16WIOCh. 19 - Prob. 17WIOCh. 19 - Prob. 18WIOCh. 19 - What are the pros and cons of pursuing biofuels as...Ch. 19 -
1. Describe an adaptation that arose in each...Ch. 19 - Prob. 2PITCh. 19 - Prob. 3PITCh. 19 - Prob. 4PIT
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- The male gametophyte of the moss looks identical to the female from the naked eye, but the photo below (I.s. at 4x and then at 40 x) shows that the tip contains the structures where male gametes are produced.arrow_forwardUsing appropriate examples, discuss the diversity of forms amonggymnosperm lineagesarrow_forwardAfter following the life cycle of an unknown plant species, you determine it's life cycle in the following order: sporophyte -> meiosis -> gametophyte -> gametes -> double fertilization -> diploid zygote. Which plant group would you place this species? O pteridophyte O basidiomycete O bryophyte angiosperm O gymnosperm MacBook Pro Search or type URL 2$ 4 7 8arrow_forward
- Select the obvious vegetative and/or habit features that you think will be most helpful in identifying them: Family Arecaceae Family Cyperaceae Family Poaceae: Subfamily Bambusoideae Family Poaceae: Rest of the members (the typical grasses) Family Orchidaceae Family Cucurbitaceae Genus Caladium Genus Allium Genus Rhizophora Genus Codiaeumarrow_forwardList FOUR examples of angiosperm and/or gymnosperm plant species that are economically important. A species could have more than one use (for example, species "x" is an angiosperm and its tuber is used as food, for drink and at the same time it is medicinal). PUT A PHOTO OF EACH ONE, identify with common (or scientific) name.arrow_forwardIn a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg? ovary → style → stigma stigma → style → ovary ovary→ stigma→ style stigma→ ovary → stylearrow_forward
- Which statement below is correct regarding the formation of the endosperm in angiosperms? O the endosperm is formed from the female gametophyte and is haploid O a single sperm nucleus fertilizes the egg nucleus to become the diploid zygote O a sperm nucleus forms both the zygote and the endosperm through double fertilization O a second sperm nucleus fuses with the two polar nuclei of the egg sac МacВook Pro G Search or type URL @ 2# $ & * 2 3 4 6 8 W E R Yarrow_forward1) Read the following paragraph carefully. There are several mistakes within the paragraph. The ancestors of seed plants are thought to have been heterosporous. In modern day gymnosperms, megasporangia produce the gametes that give rise to the male gametophyte. Gymnosperm and angiosperm megasporangia have one integument layer. The megasporangia is haploid and makes the megaspore. a) How many mistakes are in the above paragraph? b) Rewrite the paragraph to be correct. Underline any changes you make to correct the statements.arrow_forwardIn an angiosperm life cycle, sexual reproduction includes: meiosis within the male gametophyte to produce sperm. meiosis within the female gametophyte to produce eggs. meiosis within the ovary to produce megaspores. fertilization leading to development of microspores. fertilization leading to development of megaspores.arrow_forward
- Sketch the following structures: cotyledons of pine nuts, embryo of pine nuts, root radicle of pine nuts, megagametophyte of pine nuts, seed coat of pine nuts.arrow_forwardIn tabulated form, contrast the family Poaceae from the family Cyperaceae.arrow_forwardThe three illustrations represent the three types of relationships between the haploid gametophyte and diploid sporophyte generations found among plants. Identify the types of plants and the characteristics that belong with each of the three types of relationships. Bryophyte Ferns Seed plants ferns and horsetails mosses, liverworts, and other bryophytes Ginko biloba, spruce trees, and other gymnosperms The gametophyte requires nourishment from the sporophyte in order to survive. The sporophyte and gametophyte generations grow independently and produce differently shaped plants. The sporophyte cannot survive without nourishment from the gametophyte. Answer Bank Incorrectarrow_forward
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