Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 30, Problem 2TYK
Summary Introduction
Introduction: Seed plants have appeared about 360 million years ago. The seed plants are also known as spermatophytes. The seed plants are classified into two different groups, gymnosperms and
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Which of the following pairs of plant structure has the haploid number ofchromosomes?
A. Megaspore mother cell and antipodal cells
B. Egg cell and antipodal cells
C. Egg cell and endosperms
D. Microspore mother cell and antipodal cells
The alternation of generations life cycle applies to gymosperms in that:
A. the gametophyte stage is reduced
B. the sporophyte stage is reduced
C. the gametes are produced via meiosis
D. the spores are produced via meiosis
Presence of all of the following factors promotes dormancy of seeds, except
a.Phenolics
b.Impermeable seed coat
c.Immature embryo
d.Gibberellins
Chapter 30 Solutions
Study Guide for Campbell Biology
Ch. 30 - Why is the evolution of pollen an important...Ch. 30 - Label the parts in the following generalized...Ch. 30 - a. Describe a pollen cone and the formation of a...Ch. 30 - In the following diagram of the life cycle of an...Ch. 30 - Fill in the following table, which compares...Ch. 30 - Describe the characteristics of seed plants that...Ch. 30 - Prob. 2SYKCh. 30 - Current morphological and molecular evidence...Ch. 30 - Prob. 1TYKTCh. 30 - Prob. 2TYKT
Ch. 30 - Prob. 3TYKTCh. 30 - Prob. 4TYKTCh. 30 - Prob. 5TYKTCh. 30 - _______ A fruit consists of an embryo, nutritive...Ch. 30 - Prob. 7TYKTCh. 30 - Prob. 8TYKTCh. 30 - Prob. 1TYKCh. 30 - Prob. 2TYKCh. 30 - For a pine seed, which of the following choices...Ch. 30 - Gymnosperms rose to dominance during the a....Ch. 30 - In a pine tree, where would you find a...Ch. 30 - Prob. 6TYKCh. 30 - Prob. 7TYKCh. 30 - Which of the following pairs is mismatched? a....Ch. 30 - Prob. 9TYKCh. 30 - Prob. 10TYKCh. 30 - Prob. 11TYKCh. 30 - Prob. 12TYK
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- Which of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is longest phase of the life cycle.arrow_forwardWhich of the following is not a characteristic of plants? (a) cuticle (b) unicellular gametangia (c) stomata (d) multicellular embryo (e) alternation of generationsarrow_forwardWhich of the following statements about the haplodiplontic life cycle of land plants is/are TRUE? A During the sporophyte stage, sporangia house diploid mother cells that will eventually undergo meiosis. B Sperm develop from mitosis in the archegonium. C Spores grow by mitosis into mature haploid gametophytes. D The gametophytic stage begins with a diploid spore. EA and C are both true.arrow_forward
- Which of these is a feature not present in seedless plants that have contributed to the success of seed plants on land? a. Seeds have four layers of protective tissue, the seed coat, that improve survival by providing more protection from environmental stresses. b. The reduced gametophytes of seed plants are nurtured by sporophytes and protected from stress, such as drought conditions and UV radiation. c. Seed germination is solely mediated by water during episodes of heavy rain. d. Pollen grains, with walls containing sporopollenin, deter herbivores. Three unknown non-vascular plant species were collected by Biology 3 students. Which characters BEST discriminate them from one another? 1. protonema II. special organelles III. seta IV. calyptra V. capsule VI. stalk a. I,II,III b. I,III,V c. III, IV, V d. II,IV,VIarrow_forwardKey features of seed plants facilitating life on land include three of the following four traits. Which of these is an exception? a. Reduced gametophytes b. Pollen c. Homospory d. Seeds Which of these will most likely happen when bryophyte spores are dispersed to a favorable habitat, such as a moist soil or tree bark? a. They will germinate and grow into sporophytes. b. They will germinate and grow into haplophytes. c. They will germinate and grow into chlorophytes. d. They will germinate and grow into gametophytes. Which of the following is the purpose of having cuticles only at the upper surface of thallus of a non-vascular plant like a moss? a. Direct water and nutrient absorption b. Efficient exchange of gases c. Faster generation of osmotic pressure in leptoids d. Easier diffusion of carbon dioxidearrow_forwardThe sporophyte of nonvascular plants A. possesses anthers and archegonia O B. produces spores C. is the dominant stage of their alternation of generations D. produces non-motile sperm cells E. is dependent on wind pollinationarrow_forward
- Which group of plants bears stomata only in the sporophyte generation? a. Chrysophyta b. Anthocerophyta c. Bryophyta d. Marchantiophyta Which of the following is not a characteristic that distinguishes gymnosperms and angiosperms from other plants? a. Pollen b. Dependent gametophytes c. Ovules d. Alternation of generations Which of these statements is an incorrect comparison of a pine cone and a flower in terms of structure and function? a. Pine cones and flowers both have gametophytes and modified leaves that produce spores. b. All of the statements are correct. c. Unlike pine cones, many flowers produce both pollen and ovules. d. Pine trees have separate pollen cons and ovulate cones while in flowers, pollen grains are produced by the anthers of stamens, and ovules are within the ovaries of carpels.arrow_forwardIn the life cycle of a bryophyte, represent(s) the gametophyte (haploid) form and represents the sporophyte (diploid) form. A. microscopic gametes; a multicellular leafy structure B. the multicellular foliose form; a smaller, temporary, dependent structure C. a gemmae cup; the leafy permanent portion D. a multicellular foliose form; a gemmae cup E. a multicellular foliose form; a collection of spores or soriarrow_forwardWhich of the following is NOT regulated by Gibberellins? seed germination a. b. fruit growth gravitropism Oc. stem elongation d.arrow_forward
- Which of the following is true regarding germination? a. Imbibition of water is the first step of germination b. All are true regarding germination c. Shoots emerge first, then roots d. The seed coat stays intact during germination e. Freezing and thawing can help start germinationarrow_forwardFour of the following are steps occur in the earliest stages of seed germination. Choose the fifth and last step: Select one: O a. Intake of water b. Activation of the aleurone layer O c. Cell division d. Increase in cellular respiration e. Mobilization of food reserves for cell divisionarrow_forwardThe following traits are shared by some members of the ANA Grade and Magnoliids, EXCEPT: a. monosulcate pollen b. one seed cotyledon c. spiral arrangement of perianth d. absence of vessel in wood e. numerous, free carpels (apocarpous)arrow_forward
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