CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
12th Edition
ISBN: 9780136920335
Author: Urry
Publisher: PEARSON
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Chapter 38.1, Problem 3CC
MAKE CONNECTIONS Ø Does the life cycle of humans have any structures analogous to plant gametophytes? Explain your answer. (See Figures 13.5 and 13.6.)
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MAKE CONNECTIONS In addition to cotyledon number, how do thestructures of monocots and eudicots differ? (See Figure 30.16.)
In angiospermic plant before formation of microspore sporogenous tissue undergo cell division
(a) Name the type of cell division.
(b) What would be the ploidy of the cells of tetrad?
WRITE ABOUT A THEME: ORGANIZATION Cells are the basicunits of structure and function in all organisms. A key featurein the life cycle of plants is the alternation of multicellularhaploid and diploid generations. Imagine a lineage of floweringplants in which mitotic cell division did not occur between theevents of meiosis and fertilization (see Figure 30.12). In a shortessay (100–150 words), describe how this change in the timingof cell division would affect the structure and life cycle of plantsin this lineage
Chapter 38 Solutions
CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
Ch. 38.1 - Distinguish between pollination and fertilization.Ch. 38.1 - Prob. 2CCCh. 38.1 - MAKE CONNECTIONS Does the life cycle of humans...Ch. 38.2 - What are three ways that flowering plants avoid...Ch. 38.2 - Prob. 2CCCh. 38.2 - Prob. 3CCCh. 38.3 - Compare traditional plant-breeding methods with...Ch. 38.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 38.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 38 - What changes occur to the four types of floral...
Ch. 38 - Prob. 38.2CRCh. 38 - Prob. 38.3CRCh. 38 - A fruit is (A) a mature ovary. (B) a mature ovule....Ch. 38 - Prob. 2TYUCh. 38 - Double fertilization means that (A) flowers must...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - Prob. 6TYUCh. 38 - The black dots that cover strawberries are...Ch. 38 - DRAW IT Draw and label the parts of a flower.Ch. 38 - Prob. 9TYUCh. 38 - Prob. 10TYUCh. 38 - SCIENCE, TECHNOLOGY, AND SOCIETY Humans have...Ch. 38 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 38 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
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- Discuss Concepts Compare the size, anatomical complexity, and degree of independence of a Douglas fir female gametophyte and a dogwood female gametophyte. Which one is the most protected from the external environment? Which trend(s) in plant evolution does your work on this question bring to mind?arrow_forwardKnow and Comprehend 8. The green, gametangia-bearing moss plant (a) is the haploid gametophyte generation (b) is the diploid sporophyte generation (c) is called a protonema (d) contains cells with single large chloroplasts (e) b and carrow_forwardTest Your Understanding Know and Comprehend 1. Seed plants lack which of the following structure(s)? (a) ovules surrounded by integuments (b) microspores and megaspores (c) vascular tissues (d) a large, nutritionally independent sporophyte (e) a large, nutritionally independent gametophytearrow_forward
- Discuss Concepts Baobab trees (Adansonia spp.) store water in their trunks (stems) and, although the trees have leaves, considerable photosynthesis also occurs in the trunks. Cacti too have water-storing, photosynthetic stems. In terms of evolutionary adaptation, what does this information suggest about cacti and baobabs?arrow_forwardConifer Life Cycle The conifer plant has 18 chromosomes. For each of the four stages on the diagram of the conifer life cycle, labelled A-D, identify whether the stage is haploid or diploid, and indicate the number of chromosomes that would be found in the cells at each stage. Stage Haploid or Diploid? Number of chromosomes found in cells? A B C Darrow_forwardlides chrome extension://bpmcpldpdmajfigpchkicefoigmkfalc/views/app.html ent.docx BIU A 1. Of the following characteristics of plants, which are inherited (shared with green alg are new (evolved within the plant lineage only)? a) Multicellular sporangia b) Presence of chloroplasts c) Sessile (doesn't move) d) Embryos supported by parents e) Apical meristems f) Cellulose cell walls 2. Designate each of the following as haploid or diploid. a) Green part of a moss b) Liverwort spem c) Fern sporophy te d) Cells making up the antherid ium of a fem gameto phyte e) Plant spore f) Plant embryo 3. Fill in the blank: a) A plant spore grows into a b) Eggs are produced inside c) A plant zygote grows in to a d) Sporangia produce 4. What group of plants (bryophy tes. lycophytes, pteridophytes/ferns, seed plants/spermatop vascular plants/tracheophytes, plants/embryophy tes) is being described? Choose the group best fits the description. a) Can produce lignin-reinforced tissues (e.g., xylem, sclerench…arrow_forward
- 12. (a) Plant in FIGURE 12 can reproduce sexually or asexually. Sporophyte generation is dominant for this plant. A FIGURE 12 (i) Identify the name of the plant species in FIGURE 12 and its phylum. (ii) Name parts A and B. (iii) State the roles of part A and part B in reproduction.arrow_forwardPostlab: Bryophytes, Seedless Vascular Plants & Gymnosperms 1. What is the conspicuous form of the bryophytes? Is this form haploid or diploid? 2. The part that produces the male gametes is called the....? 3. The part that produces the female gametes is called the... 4. Spores are produced by which cell division process? 5. What is the conspicuous form of the seedless vascular plants? Is it haploid or diploid? 6. What are microspores? Where are they produced in gymnosperms? 7. Megaspores give rise to which structure in gymnosperms? 8. How are most gymnosperms pollinate d? 9. In gymnosperms, the material that nourishes the embryo derives from what tissue? 10. How can you visually differentiate a male from a female cone in pines?arrow_forwardMAKE CONNECTIONS In seed plants, how might retaining the gametophyte within the sporophyteaffect embryo fitness? (See Concepts 17.5, 23.1, and 23.4 to review mutagens, mutations, and fitness.)arrow_forward
- what are the flaws ? Plants reproduce in a pattern known as alternation of generations. A haploid gametophyte produces gametes through mitosis. The gametes fuse to form a zygote, which then grows into a diploid sporophyte. The sporophyte produces spores through meiosis, which then grow into a gametophyte and start the process over. Flowers are how angiosperms reproduce. A whorl of sepals (corolla) is at the base of the flower, followed by a whorl of petals (calyx). Inside the flower is a female organ known as a carpel and it is made of a stigma, style, and ovary. The male organ is the stamen and it is made of an anther and filament. Pollen being transferred to the style is known as pollination. Once the pollen travels down the style and reaches the egg, fertilization happens when sperm meets egg. Then, the fertilized egg and surrounding tissue develops into a seed. A seed is protected by a seed coat and contains endosperm and an embryo. The endosperm grows into a new plant while…arrow_forwardQuestion:- How has the size and longevity of the sporophyte and gametophyte changed with the evolution of plants?arrow_forwardHow may the following trends in plant evolution be adaptive to living on land? (a) dependence on water for fertilization ➝ no need for water as a transport medium (b) homospory ➝ heterosporyarrow_forward
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