Biological Science, Loose-leaf Edition (7th Edition)
7th Edition
ISBN: 9780135272800
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 28, Problem 8TYU
Explain the difference between homosporous and heterosporous plants. Where are the microsporangium and megasporangium found in a tulip? What happens to the spores that are produced by these structures?
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Which of the following statements is accurate?
a) All plants have identical sporangia, all producing the same type of spores
b) Plants have an embryo that is protected inside (and nourished by) the
gametophyte
c) Gametangia produce gametes by meiosis whereas sporangia produce spores
by mitosis
d) Gametangia always produce haploid gametes whereas sporangia produce
diploid spores
e) Gametangia are multicellular structures whereas sporangia are unicellular
structures
What is the morphology of the megasporangium of a heterosporous Selaginella plant?
How does the megaspore form in a heterosporous Selaginella?
What is the fate of the megaspores?
a. Describe the function of plant roots.
b) Describe the function of plant shoots.
c)What is the function of lignin in terrestrial plants?
d)What are xylem and phloem and how do they differ?
e)Exactly what is pollen?
f)Exacly what is a seed?
Chapter 28 Solutions
Biological Science, Loose-leaf Edition (7th Edition)
Ch. 28 - What important role does lignin play in vascular...Ch. 28 - Prob. 2TYKCh. 28 - What is a pollen grain? a. male gametophyte b....Ch. 28 - 5. What does it mean to say that a life cycle is...Ch. 28 - 6. SOCIETY Soils, water, and the atmosphere are...Ch. 28 - Prob. 7TYUCh. 28 - Explain the difference between homosporous and...Ch. 28 - Angiosperms such as grasses, oaks, and maples are...Ch. 28 - PROCESS OF SCIENCE You have been hired as a field...Ch. 28 - Is long-distance sex possible in mosses?
Moss...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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 placearrow_forwardAre fern spores haploid or diploid? Are the spores proudced by meiosis or mitosis? Where are the spores produced?arrow_forwardWhat is the process in the plant life cycle that occurs within sporangium and results in spores?arrow_forward
- Each ascus within an ascomycete fruiting body contains eight cells. Are these cells haploid, diploid, or dikaryotic? Is every cell within an ascus genetically unique? What is the fate of each cell?arrow_forwardObserve a portion of the longitudinal section of Equisetum strobilus. Draw and Label the following structures: a.) sporangiophore b.) sporangium c.) spores with elater d.) central axisarrow_forwardWhich of the following comparisons between the moss life cycle and fern life cycle are correct? A) Mosses have flagellated sperm that need water to reach the female gamete, while the sperm of ferns are unflagellated and are not dependent on water.B) The sporophyte generation is smaller than the gametophyte generation in mosses, but the sporophyte generation is much larger than the gametophyte generation in ferns.C) The spores are produced in capsules on stalks in mosses but in small structures called sori on the underside of leaves in ferns.D) The gametes are produced in gametangia in mosses but in specialized structures on the underside of leaves in ferns.E) Both kinds of plants depend on wind for dispersal of spores.arrow_forward
- What is the Gametophyte structure of Fern, Pine tree and Gumamela?What are the Classification in terms of spore production of fern, pine tree and gumamela?arrow_forwardA B C D G E F H a) On the diagram, which labeled structure represents the mature male gametophyte? I b) Which labeled structure represents the female megasporangium, prior to the production of spores? c) On the diagram, which labeled structure represents the immature male gametophyte? F d) Which labeled structure represents the mature female gametophyte? Jarrow_forwardByrophytes are usually found in areas that are very wet or damp at least part of the year. Which of the following statements describes characteristics of byrophytes that make them dependent on water? State all that numbers that apply. 1. They have a dominant gametophyte phase. 2. They have swimming sperm that need water so they can swim to fertilize the eggs of other nearby plants. 3. They do not have lignin-stiffened vascular tissue or roots to effectively distribute water throughout the plant.arrow_forward
- Compare the leaf structure of Nerium to Ligustrum. Look for stomata. Where are they located? On the upper or lower leaf surface? How is the surface of the leaf modified? Can you recognize why these leaves are said to have “sunken stomata”? Look for “hairs” on the leaf surface. Where are they located? How are they advantageous? How does the appearance of each tissue layer in Nerium differ from Ligustrum? Compare the upper epidermis to the lower epidermis. Compare the amount of cuticle.arrow_forwardWhat is germ sporangium?arrow_forwardSketch 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_forward
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