Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 16, Problem 13IMT
Summary Introduction
To determine:
The relation of the statement “Gametophytes produce gametes that unite to form zygotes, which develop in to new sporophytes and sporophytes produce spores that give rise to new gametophytes, transmitting DNA through an alternation of generations” to the theme.
Introduction:
In
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The picture below shows a living member of the Pteridophytes.
Make a sketch of the specimen and label the following structures: sporophyte, frond, pinna, rhizome,
root (Alternatively, you can find a live fern with all these structures and take a picture, label it and
upload here.)
READ THE FOLLOWING INSTRUCTIONS:
Bryophytes in which the gametophytes are "leafy" in appearance and the sporophytes grow conspicuously from the tips of the gametophyte plants.
STEP 1: Examine the mass of moss plants and then select one or two individual gametophyte plants and note the leaf-like (not true leaves because they lack conducting tissue) structures which are arranged around a central, vertical "stem-like" stalk and root-like rhizoids which anchor the plant and absorb water and nutrients.
STEP: The sex organs are in the tips of the plants and must be seen with the microscope. Study a slide of a vertical section through head of a mate plant and note the many antheridia.
STEP 3: Examine a slide through a vertical section of a female plant. Note the many upright archegonia each on a tall stalk and each with a swollen base or venter containing an egg and an elongate neck. Note the filamentous paraphyses between the archegonia.
STEP 4: Examine a living or preserved…
Draw the life cycle of a typica bryophyte such as moss. Your drawing should contain the following terms:
2N and N, Sporophyte and Gametophyte, Sporangium, Meiosis, Spores, Protonema, Antheridium, Sperm, Archegonium, Egg and Fertilization
Chapter 16 Solutions
Campbell Essential Biology (7th Edition)
Ch. 16 - Which of the following structures is common to all...Ch. 16 - Prob. 2SQCh. 16 - Complete the following analogies: a. Gametophyte...Ch. 16 - Prob. 4SQCh. 16 - During the Carboniferous period, the dominant...Ch. 16 - You discover a new species of plant. Under the...Ch. 16 - How does the evergreen nature of pines and other...Ch. 16 - Prob. 8SQCh. 16 - Plant diversity is greatest in a. tropical...Ch. 16 - Prob. 10SQ
Ch. 16 - Prob. 11SQCh. 16 - Prob. 12SQCh. 16 - Prob. 13IMTCh. 16 - Prob. 14IMTCh. 16 - Prob. 15IMTCh. 16 - In April 1986, an accident at a nuclear power...Ch. 16 - Interpreting Data Airborne pollen of...Ch. 16 - Why are tropical forests being destroyed so...Ch. 16 - Mary prescription drugs are derived from natural...
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- Explain the life cycle of a fern. Begin with the dominant portion of their life cycle and work your way through the rest including specific names of structures, types of cell division used, and nuclear conditions. Along with your explanation (paragraphs, bulleted points, etc.), I would like for you to discuss in a few sentences how this life cycle is more advanced than a typical moss’s life cycle and, in a few sentences, how it is not quite as advanced as a typical pine’s life cycle.arrow_forwardSelect 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_forwardCompare and contrast the three phyla of bryophytes using the specified bases in the Table below. Bases Hepatophyta Anthocerotophyta Bryophyta 1. Growth form (leafy or thallose) 2. Arrangement of leaves on the stem for leafy types 3. Mechanism of spore dispersal 4. Presence of stomata on the sporophytes 5. Presence of primitive conducting cells 6. Presence of chloroplast on the sporophyte 7. Structure of the protonema 8. Presence of symbiotic cyanobacteria 9. Length of the setaarrow_forward
- 4) Draw the moss gametophyte and sporophyte, and label the following structures: gametophyte male plant female plant foliage (bladelike structures) rhizoids sporophyte (stalk & capsule)arrow_forwardExplain at least three important roles for fungi growing in a temperate deciduous forest. What would happen if all the fungi in these forests went extinct? Explain, in detail, why ferns are better adapted for life on land than mosses. Explain how the structure of hyphae (and a mycelium) relates to the function of these cells.arrow_forward4. What group of plants (bryophytes, lycophytes, pteridophytes/ferns, seed plants/spermatophytes, vascular plants/tracheophytes, plants/embryophytes) is being described? Choose the best fits the description. a) Can produce lignin-reinforced tissues (e.g., xylem, sclerenchyma) b) Sporophyte consists of a stalk and capsule only c) No longer make flagellated sperm d) Leaves evolved independently, and have only one vein e) - Have multi-veined leaves and flagellated sperm group thatarrow_forward
- Refute the claim that bryophytes have never managed to achieve tree sizes because they lack an efficient water transport system. Support your arguments (with factual references).arrow_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_forwardPart 1: Identify the haploid and diploid generations of the following plants. (Examples are found in your prelab reading) Identify the Bryophyte and if it is in its haploid or diploid reproductive state. A hornwort Haploid B Moss Haploid C Liverwort Haploid List the stages of the life cycles for all three classes of Bryophytes starting from the spore stage. 中 Mosses Liverworts Hornworts Spore Spore Spore How does the life cycle of nonvascular plants differ from that of vascular plants? Why are ferns considered vascular plants even though they share a life cycle similar to Bryophytes?arrow_forward
- Draw a simple diagram illustrating a heterosporous life cycle. Include the sporophyte generation, megaspore, female gametophyte, egg, microspore, male gametophyte, sperm, meiosis, and fertilization. Be sure to indicate whether each generation or kind of cell is haploid or diploid.arrow_forwardLabel the following: Root / Sporophyte / Antheridium / Archegoniumarrow_forwardThe photo below is a longitudinal section (I.s.) of the strobilus of Selaginella at 40x. How does this photo illustrate the importance of the previous question?arrow_forward
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