Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 27.1, Problem 4C
Summary Introduction
To draw: A simple diagram of alternation of generation in plants with description regarding sporophyte and gametophyte generation, spores, gametes, meiosis, and fertilization process.
Introduction: Plants possess alternation of generations in which both multicellular haploid and multicellular diploid phases are present. Haploid gametes are produced during the gametophytic part of life cycle and when these haploid gametes fuse to form diploid zygote, sporophytic part of cycle starts.
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Draw a simple diagram illustrating alternation of generations in plants, including the sporophyte and gametophyte generations, spores, gametes (eggs and sperm), meiosis, and fertilization. Be sure to indicate whether each generation or kind of cell is haploid or diploid.
How does a haplontic plant population maintain genetic diversity? a. Zygotes are produced by random fusion. b. Gametes are created through meiosis. c. Diploid spores undergo independent assortment during mitosis. d. The zygote undergoes meiosis to generate a haploid sporophyte.
4. Describe the process of alternation of generations using any plant phylum as an example. In your answer be sure to detail which structures are haploid and diploid, and which processes are undergone to produce spores and gametes. If it helps, draw a diagram on a piece of paper.
Chapter 27 Solutions
Biology (MindTap Course List)
Ch. 27.1 - Discuss some environmental challenges of living on...Ch. 27.1 - Name the green algal group from which plants are...Ch. 27.1 - Prob. 1CCh. 27.1 - Prob. 2CCh. 27.1 - Prob. 3CCh. 27.1 - Prob. 4CCh. 27.2 - Summarize the features that distinguish bryophytes...Ch. 27.2 - Name and briefly describe the three phyla of...Ch. 27.2 - Describe the life cycle of mosses and compare...Ch. 27.2 - Prob. 1C
Ch. 27.2 - How are mosses, liverworts, and hornworts similar?...Ch. 27.3 - Discuss the features that distinguish seedless...Ch. 27.3 - Name and briefly describe the two phyla of...Ch. 27.3 - Describe the life cycle of ferns and compare their...Ch. 27.3 - Compare the generalized life cycles of homosporous...Ch. 27.3 - Prob. 1CCh. 27.3 - Prob. 2CCh. 27.3 - Which of the following are parts of the sporophyte...Ch. 27.3 - Why are whisk ferns and horsetails now classified...Ch. 27.3 - How does heterospory modify the plant life cycle?Ch. 27 - Plants probably descended from a group of green...Ch. 27 - Which of the following is not a characteristic of...Ch. 27 - In plant life cycles, (a) the first products of...Ch. 27 - The bryophytes (a) include mosses, liverworts, and...Ch. 27 - The waxy layer that covers aerial parts of plants...Ch. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - Know and Comprehend 8. The green,...Ch. 27 - Prob. 9TYUCh. 27 - Know and Comprehend 10. These plants have...Ch. 27 - Know and Comprehend 11. These plants have hollow,...Ch. 27 - Know and Comprehend 12. Which of the following...Ch. 27 - Apply and Analyze 13. VISUALIZE Draw a simple...Ch. 27 - Evaluate and Synthesize 14. EVOLUTION LINK How may...Ch. 27 - Evaluate and Synthesize 15. INTERPRET DATA...Ch. 27 - Evaluate and Synthesize 16. EVOLUTION LINK Where...
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- How does a haplontic plant population maintain genetic diversity? Zygotes are produced by random fusion Gametes are created through meiosis Diploid spores undergo independent assortment during mitosis The zygote undergoes meiosis to generate a haploid sporophyte.arrow_forwardDraw 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_forwardIdentification: 1. In the moss gametophyte, this structure contains the haploid female gamete. 2. It refers to the production of two different types of spores (megaspore and microspore). 3. The embryos of corn and other grass seeds are partial enclosed in a protective sheath called?arrow_forward
- Draw a generalized pine tree life cycle and identify the following structures: male and female gametophytes, pollen grain, integuments, archegonium, egg, embryo, and sporophyte.arrow_forwardPLEASE ANSWER NUMBER 1,2,3, and 4 QUESTIONS: (with brief explanation only) 1. A difference between seedless vascular plants and plants with seeds is that? A. the gametophyte generation is conspicuous in the seedless plants, whereas the sporophyte is dominant in the seeded plants. B. the spore is the agent of dispersal in the first, whereas the seed functions in dispersal in the second. C. the gametophyte is photoautotrophic in seedless plants but dependent on the sporophyte generation in the other group. D. the embryo is unprotected in the seedless plants but retained within the female reproductive structure in the other group. 2. Biologist hypothesize that the first land plants had a low, sprawling growth habitat. Which of the following is part of the logic behind that theory? A. The low sprawling growth gave them greater surface area exposed to light for photosynthesis. B. This was prior to plants’ development of adaptations to defend themselves from predators, so by growing…arrow_forwardDraw the life cycle of a typical flowering plant, explain the rolesof meiosis and mitosis in it.arrow_forward
- Define the following asexual reproduction of plants. 1. Budding 2. Fragmentation 3. Vegetation Propagation 4. Spore Formation Define the following asexual reproduction done by animals. 1. Binary Fussion 2. Budding 3. Fragmentation and Regeneration 4. Parthenogenesisarrow_forwardGive typed full explanation Which of the following statements is TRUE for the labeled structures? (Choose all the correct answers) a. The structures labeled with the letter a are genetically identical to each other. b. The structure labeled with the letter b is the gametophyte. c. The structures labeled with the letter c (the sperm produced by one antheridium) are genetically different from each other. d. The structure labeled with the letter d is the sporophyte.arrow_forwardLesson: Perpetuation of life Assessment: Enumerate what is/are being asked. Give at least five examples of genetic engineered plants/animals. a. b. c. d. e. Give at least 2 examples of the following: Fission- - Budding- - Fragmentation- - 3. Give at least 4 examples of plants which can do Vegetative Reproduction. a. b. c. d.arrow_forward
- describe alternation of generations in plants using the words Haploid - Diploid - Gametophyte - Sporophyte - Gametes - Zygote -arrow_forwardRearrange the sequence of conifer life cycle 1. Seed cone allows the entry of wind- borne pollen grains, once enclosed pollen grain will slowly develop pollen tube 2. Small seeds can be carried away by wind and large seeds are dispersed by animals 3. In spring or in a windy day, thousands of pollen grains will disperse. 4. Seeds contains three tissues; embryo, seed coat and gametophyte 5. Conifers produce two types of spores; pollen cone that contains male gametophyte and a seed cone containing enclosing archegonia 6. Flagellated sperm will release to fertilize the egg and eventually develop into a tiny embryo 7. Once germinated, conifer establish first a good rooting system for protection and seeking nourishment.arrow_forwardPlant Diversity Know the phylum, domain and supergroup of land plants and its sister taxon. Describe at least four out of the seven derived traits of land plants. Describe and draw a general land plant life cycle (know the terms haploid, diploid, gametophyte, sporophyte, spore, meiosis, mitosis)arrow_forward
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