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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Textbook Question
Chapter 28, Problem 9TYU
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 nuclei
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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 nuclei
f. The mature female gametophyte is called a(n)
(A)
embryo sac
(B)
nucellus
(C)
megasporangium
(D)
endosperm
(E)
ovule
Part 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)
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 3. The immature male gametophytes of pine are called (a) ovules (b) stamens (c) seed cones (d) pollen grains (e) polar nucleiarrow_forward_______of the pollen grain divides to form two male gametes. (a) Vegetative cell (b) Generative cell (c) Microspore mother cell (d) None of thesearrow_forwardWhich structure produces and stores pollen? (A) stigma (B) style (C) anther (D) ovaryarrow_forward
- (D) seeds3. With respect to angiosperms, which of the followingis incorrectly paired with its chromosome count?(A) egg—n(B) megaspore—2n(C) microspore—n(D) zygote—2narrow_forwardThe female gametophyte in flowering plants is also called the (a) polar nuclei (b) anther (c) embryo sac (d) endosperm (e) sporophyllarrow_forwardIn which part of the flower does both meiosis and fertilization occur? (A) anther (B) filament (C) ovule (D) stigmaarrow_forward
- Test Your Understanding Know and Comprehend 8. A flower that lacks stamens is both _______________ and _______________. (a) complete; imperfect (b) incomplete; perfect (c) complete; perfect (d) incomplete; imperfectarrow_forwardPlace the following events in the correct order: 1. pollen tube grows into ovule 2. insect lands on flower to drink nectar 3. embryo develops within the seed 4. fertilization occurs 5. pollen carried by insect contacts stigma (a) 2, 5, 1, 4, 3 (b) 1, 4, 2, 5, 3 (c) 3, 2, 5, 1, 4 (d) 5, 1, 3, 4, 2 (e) 2, 5, 4, 3, 1arrow_forwardTest Your Understanding Know and Comprehend 5. Motile sperm cells are found as vestiges in these two gymnosperm groups: (a) monocots, eudicots (b) gnetophytes, conifers (c) gnetophytes, flowering plants (d) cycads, conifers (e) cycads, ginkgoarrow_forward
- 14. The embryonic stem in a seed is called the (a) radicle. (b) hypocotyl. (c) seed coat. (d) endosperm. 15. Pollen contains (a) male gametes. (b) female gametes. (c) fruits. (d) a stigma.arrow_forwardWhich of the following is not a characteristic that distinguishesgymnosperms and angiosperms from other plants?(A) dependent gametophytes(B) ovules(C) pollen(D) alternation of generationsarrow_forwardMale plant gametophyte (n) f 1 - rhizoids; 2 - stem; 3-leaf; 4a - spermatozoa; 4b - cover; 4c - spermatic tissue; 5- antheridial headarrow_forward
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