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 29, Problem 7TYK
Summary Introduction
Introduction: The early land plants are the first to appear on the land about 470 million years ago. These plants are non-vascular plants and do not have deep roots. Some of the early land plants are
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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 the longest phase of the life cycle.
The following evolutionary trends are seen in the seedless land plants.
a. Gametophytes became photosynthetic.
b. A key innovation accompanying the appearance of pterophytes was the haplodiplontic life cycle.
c. The gametophyte generation became the dominant generation.
d. There is increased protection of the sporophyte generation in its early developmental stages.
Ferns differ from mosses in having:
O a. There is no separate gametophyte and sporophyte (each plant changes from sexual to asexual).
O b. The gametophyte is dioecious (single sex).
Oc. The sperm are transported by wind.
O d. Afunction of the roots is to absorb water from the soil.
O e. Dispersal is no longer by spores.
Chapter 29 Solutions
Study Guide for Campbell Biology
Ch. 29 - List some of the benefits and challenges of a...Ch. 29 - The gametophyte produces a. _____ by b._____....Ch. 29 - Why are the seedless vascular plants considered a...Ch. 29 - Review the life cycle of a typical moss plant by...Ch. 29 - Describe the traits of vascular plants that enable...Ch. 29 - In the following diagram of the life cycle of a...Ch. 29 - The evolution of land plants involved adaptations...Ch. 29 - The diagram on the following page presents a...Ch. 29 - Which of the following is a derived trait of...Ch. 29 - Plants are thought to be most closely related to...
Ch. 29 - Early land plants lacked true roots but were able...Ch. 29 - Which of the following groups is most likely the...Ch. 29 - Prob. 5TYKCh. 29 - Where would you look for the sporophyte generation...Ch. 29 - Prob. 7TYKCh. 29 - Which of the following is a group of vascular...Ch. 29 - Bryophytes were the dominant plants in the first...Ch. 29 - Which of the following plant groups is incorrectly...Ch. 29 - Which of the following constitute a large store of...Ch. 29 - Which of the following best describes megaphylls?...Ch. 29 - If a plants life cycle includes separate male and...Ch. 29 - Xylem and phloem are found in a. all land plants....Ch. 29 - If you could take a time machine back to the...
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- In 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 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_forwardWhich 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 cellsarrow_forward
- The 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_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_forwardWhich of the following statements is NOT true of the stems of vascular plants? a. Stems are composed of repeating segments, including nodes and internodes. b. Primary growth only occurs at the shoot apical meristem. c. Vascular tissues may be arranged on the outside of the stem or scattered throughout the stem. d. Stems can contain stomata.arrow_forward
- 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 meiosisarrow_forwardPrimary meristems produce tissues that A) increase the length of a plant B) produce the cork cambium C) increase the width of a plant D) lead to the production of bark E) increase the mass of a plantarrow_forwardWhich of the following cell types is responsible for cavitation-induced spore dispersal in most ferns? A. stipe cells B. indusium cells C. oogonia cells D. annular cellsarrow_forward
- The following structures are found on the underside of fern leaves and contain sporangia: a. sori b. rhizomes c. megaphylls d. microphyllsarrow_forwardWhich of the following is not a characteristic of plants? (a) cuticle (b) unicellular gametangia (c) stomata (d) multicellular embryo (e) alternation of generationsarrow_forwardChoose the best below : How are ferns different from mosses?a. Only ferns produce spores as dispersal agents.b. Ferns have vascular tissue.c. In the fern life cycle, the gametophyte and sporophyte areboth independent.d. Ferns do not have flagellated sperm.e. Both b and c are correct.arrow_forward
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