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 8TYKT
Summary Introduction
To examine: Whether the statement “The female gametophyte in
Introduction: Gymnosperms are seed-producing vascular plants. Gymnosperms have naked or unenclosed seeds. It includes conifers, Ginkgo, cycads, and gnetophytes. The most widespread and largest group of gymnosperms is the cone-bearing conifers that include pines, firs, spruces, and others.
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Which statement below is correct regarding the formation of the endosperm in angiosperms?
O the endosperm is formed from the female gametophyte and is haploid
O a single sperm nucleus fertilizes the egg nucleus to become the diploid zygote
O a sperm nucleus forms both the zygote and the endosperm through double fertilization
O a second sperm nucleus fuses with the two polar nuclei of the egg sac
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Which of the following is correct regarding female gametophyte development in
Angiosperms?
The female gametophyte develops in the anther
The female gametophyte develops in an ovule within an ovary
A female gametophyte develops from all four megaspores produced via meiosis
All cells of the female gametophyte are haploid
In flowers,the structure that produce male and female gametophytes are called______and____
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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- Sketch a seed of a gymnosperm and of a monocot. Label the embryo, seed coat, and nutritive tissue (giving its specific name). Indicate the ploidy of each structure (haploid, diploid, or triploid).arrow_forwardMost of the approximately 900 species of gymnosperms are conebearing plants. On the surfaces of their cone scales are ovules, which later become seeds. These ovules are said to be naked because they are not completely enclosed by diploid tissue (as the ovules of angiosperms are). This characteristic gives the gymnosperms their name; gymnos is a Greek word meaning naked, and sperma means seed. Botanists now divide the gymnosperms into four groups: conifers, cycads, ginkgos, and gnetophytes.arrow_forwardFlowers are adaptations for _______arrow_forward
- The three illustrations represent the three types of relationships between the haploid gametophyte and diploid sporophyte generations found among plants. Identify the types of plants and the characteristics that belong with each of the three types of relationships. Bryophyte Ferns Seed plants ferns and horsetails mosses, liverworts, and other bryophytes Ginko biloba, spruce trees, and other gymnosperms The gametophyte requires nourishment from the sporophyte in order to survive. The sporophyte and gametophyte generations grow independently and produce differently shaped plants. The sporophyte cannot survive without nourishment from the gametophyte. Answer Bank Incorrectarrow_forwardLabel the stages in the formation of male and female gametes by the gametophytes of angiosperms (flowering plants). Anther Pollen grain (male gametophyte) Microspores (4) Ovary Each of 4 microspores Embryo sac (female gametophyte) Megaspore Megasporocyte Microsporocyte Reset Zoom B CMcGraw-Hill Educationarrow_forwardGymnosperms are heterosporous plants. This means that; They reproduce by using one type of spore Their spores are covered with sporopollenin They produce separate male and female sporesarrow_forward
- Sporangia produce gametes via meiosis produce spores via meiosis produce gametes via mitosis Selected produce spores via mitosisarrow_forwardWhich of the following processes occurs in a plant's sexual life cycle? sporophytes produce gametes by meiosis sporophytes produce gametes by mitosis gametophytes produce gametes by meiosis gametophytes produce gametes by mitosisarrow_forwardWhich of the following sex and generation combinations directly produces the fruit of angiosperms? O female gametophyte O male gametophyte O female sporophyte O male sporophyte MacBook Pro Search or type URL %23 $ & * 3 4 5 E R Y G H K * 00 トarrow_forward
- In the mature angiosperm seed, the nutritive tissue is triploid. This tissue is formed from; Two polar nucleii fusing with a sperm cell The synergids fusing with a sperm cell The sperm fusing with the egg cell The embryoarrow_forwardIn a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg? ovary → style → stigma stigma → style → ovary ovary→ stigma→ style stigma→ ovary → stylearrow_forwardIn flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forward
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Plant Reproduction in Angiosperms; Author: Amoeba Sisters;https://www.youtube.com/watch?v=HLYPm2idSTE;License: Standard YouTube License, CC-BY