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 28, Problem 12TYU
Summary Introduction
Introduction: Pistil is the female reproductive part of the plant consisting of stigma, style and ovary. Pistils are composed of carpel, which may be simple (single) or compound (two or more).
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Postlab: 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?
Cleistogamous flowers are invariably autogamous because”
(a) These flowers do not open at all.
(b) There is no chance of cross – pollen landing on the stigma.
(c) These flowers have exposed anthers and stigma.
(d) These flowers are wind pollinated.
Chapter 28 Solutions
Biology (MindTap Course List)
Ch. 28.1 - Prob. 1LOCh. 28.1 - Prob. 1CCh. 28.1 - Prob. 2CCh. 28.2 - Trace the steps in the life cycle of a pine and...Ch. 28.2 - Summarize the features that distinguish...Ch. 28.2 - Name and briefly describe the four phyla of...Ch. 28.2 - What is the dominant generation in the pine life...Ch. 28.2 - Prob. 2CCh. 28.2 - Prob. 3CCh. 28.2 - Prob. 4C
Ch. 28.3 - Summarize the features that distinguish flowering...Ch. 28.3 - Briefly explain the life cycle of a flowering...Ch. 28.3 - Contrast monocots and eudicots, the two largest...Ch. 28.3 - Prob. 8LOCh. 28.3 - How do nonreproductive adaptations of flowering...Ch. 28.3 - How does the flowering plant life cycle differ...Ch. 28.3 - What are the two major classes of flowering...Ch. 28.3 - Prob. 4CCh. 28.4 - Summarize the evolution of gymnosperms from...Ch. 28.4 - What features distinguish progymnosperms from seed...Ch. 28.4 - Describe the significant features of the oldest...Ch. 28.4 - Are monocots considered basal or core angiosperms?...Ch. 28 - Test Your Understanding Know and Comprehend 1....Ch. 28 - Test Your Understanding Know and Comprehend 2....Ch. 28 - Test Your Understanding Know and Comprehend 3. The...Ch. 28 - Prob. 4TYUCh. 28 - Test Your Understanding Know and Comprehend 5....Ch. 28 - Test Your Understanding Know and Comprehend 6....Ch. 28 - Test Your Understanding Know and Comprehend 7. A...Ch. 28 - Test Your Understanding Know and Comprehend 8. A...Ch. 28 - Test Your Understanding Know and Comprehend 9....Ch. 28 - Prob. 10TYUCh. 28 - Test Your Understanding Know and Comprehend 11....Ch. 28 - Prob. 12TYUCh. 28 - Test Your Understanding Apply and Analyze 13. You...Ch. 28 - VISUALIZE Sketch a seed of a gymnosperm and of a...Ch. 28 - CONNECT How do the life cycles of seedless plants...Ch. 28 - Prob. 16TYUCh. 28 - Test Your Understanding Evaluate and Synthesize...Ch. 28 - Test Your Understanding Evaluate and Synthesize...
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- Test Your Understanding Know and Comprehend 9. After fertilization, the______________ develop(s) into a fruit and the ______________ develop(s) into a seed. (a) ovary; ovule (b) polar nuclei; ovule (c) ovary; endosperm (d) ovule; ovary (e) ovule; polar nucleiarrow_forwardTest Your Understanding Know and Comprehend 3. The immature male gametophytes of pine are called (a) ovules (b) stamens (c) seed cones (d) pollen grains (e) polar nucleiarrow_forwardIllustrate (draw) and label : (a). A mature sporophyte, and male and female gametophytes of : i) a fern (gymnosperm) (b) A frondarrow_forward
- Growth of pollen tube towards embryo sac is (a) chemotropic (b) thigmotaxis (c) geotropic (d) none of thesearrow_forwardTrue or false. 1.) The ovary becomes the seed when matures 2.) Pollination is the transfer of pollen grains from the stamen to the stigma 3.) Double fertilization in plants produces two zygotes. 4.) The anther contains the female sex cells of the plants. 5.) Epigeal germination occurs when the cotyledon remains below the ground.arrow_forwardACTIVITY &8: Fruit and seed anatomy (Student dissection or demonstration) The fate of the parts of the flower can differ among angiosperms. Floral parts typically become part of the seed and/or the fruit. 1. Obtain a germinated bean and use p. 145 of the atlas as a guide. The pod that housed the bean is the fruit of the bean plant. The bean is the seed of the plant. 2. The papery outer red covering of the bean is the seed coat, which developed from the integuments of the ovule. g eno le al boez 3. The white structure on the internal region of the bean is the hilum, the site where the seed was attached to the inner walls of the pod. eliunt ynd Vhutem Js 4. Draw and label the exterior of the bean in the space provided. U CLO22-26Cpou 5. Remove the seed coat to expose the pale underlying structure (cotyledon). Gently pry open the bean. How many cotyledons does a bean have? 6. Once the bean is opened, the embryonic sporophyte is revealed. It consists of a "leaf- like" structure called the…arrow_forward
- A pistil consists of (a) stigma, style, and stamen (b) anther and filament (c) sepal and petal (d) stigma, style, and ovary (e) radicle, hypocotyl, and plumulearrow_forwardIn 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?arrow_forwardPart B: The Embryo Sac Examine the demonstration slide of a c.s. of a lily ovary. Find an ovule. Identify the funiculus, the chalaza, the integuments, the micropyle, and the developing female gametophyte. The latter is commonly referred to as the embryo sac in angiosperms. If your slide has several embryo sacs, they are likely to be at variable stages of development. (See text Figure 19-18b,c, page 469.) Like the female gametophyte in pine, the embryo sac develops from a megaspore. 5. Label the ovary wall, ovule, integuments, and developing embryo sac in Figures 3. and 4. below. Figure 3. Lilium ovary c.s. Photo by Carolyn Alling 126 uilid Sengit olybiolq sdh ei todW A Figure 4. Lilium ovule c.s. (Enlargement of inset of Figure 3)arrow_forward
- The normal order of whorls from the flower’s periphery to the center is (a) sepals, petals, carpels, stamens (b) stamens, carpels, sepals, petals (c) sepals, petals, stamens, carpels (d) petals, carpels, stamens, sepals (e) carpels, stamens, petals, sepalsarrow_forwardEXPERIMENT 4: INDUCTION OF CALLUS SOMATIC EMBRYOGENESIS OF HAPLOID PLANTS Objective: To prepare anther as a source of explant To induce callus somatic embryogenesis of haploid plants Procedure: Cut off the buds and sort them into 3 developmental stages based on length of buds Surface sterilize the buds in 70% ethanol for 2-3 minutes, making sure the entire bud is immersed in the alcohol. Drain off excess alcohol from the buds and aseptically excise the anthers from each bud. Remove the filaments and culture the anther on one of the agar media provided. Label the stage of development of the bud on each petri dish as the anthers are cultured. Seal the Petri dishes with parafilm. Incubate in the dark at 26 to 28ºC for 4 to 8 weeks or until small plants can be seen growing out of the anthers. Then transfer to diffuse light. Record the results of the experiment in table form and submit the report. Observation: The culture was contaminated after 8 weeks of incubation…arrow_forwardKey features of seed plants facilitating life on land include threeof the following four traits. Select the exception.(A) homospory(B) pollen(C) reduced gametophytes(D) seedsarrow_forward
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