Textbook Question
Which of the following is a key feature of seed plants facilitating life on land?
a. Homospory
b. Pollen
c. Reduced sporophytes
d. Spores
Ch. 30 - Plant Diversity II: The Evolution of Seed Plants
Urry12th EditionCampbell BiologyISBN: 9785794169850
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Table of contents
- Ch. 1 - Evolution, the Themes of Biology, and Scientific Inquiry8
- Ch. 2 - The Chemical Context of Life8
- Ch. 3 - Water and Life6
- Ch. 4 - Carbon and the Molecular Diversity of Life9
- Ch. 5 - The Structure and Function of Large Biological Molecules9
- Ch. 6 - A Tour of the Cell6
- Ch. 7 - Membrane Structure and Function6
- Ch. 8 - An Introduction to Metabolism6
- Ch. 9 - Cellular Respiration and Fermentation10
- Ch. 10 - Photosynthesis7
- Ch. 11 - Cell Communication7
- Ch. 12 - The Cell Cycle11
- Ch. 13 - Meiosis and Sexual Life Cycles10
- Ch. 14 - Mendel and the Gene Idea14
- Ch, 15 - The Chromosomal Basis of Inheritance6
- Ch. 16 - The Molecular Basis of Inheritance9
- Ch. 17 - Gene Expression: From Gene to Protein9
- Ch. 18 - Regulation of Gene Expression10
- Ch. 19 - Viruses6
- Ch. 20 - DNA Tools and Biotechnology7
- Ch. 21 - Genomes and Their Evolution8
- Ch. 22 - Descent with Modification: A Darwininan View of Life6
- Ch. 23 - The Evolution of Populations5
- Ch. 24 - The Origin of Species6
- Ch. 25 - The History of Life on Earth8
- Ch. 26 - Phylogeny and the Tree of Life8
- Ch. 27 - Bacteria and Archaea6
- Ch. 28 - Protists7
- Ch. 29 - Plant Diversity I: How Plants Colonized Land7
- Ch. 30 - Plant Diversity II: The Evolution of Seed Plants6
- Ch. 31 - Fungi5
- Ch. 32 - An Overview of Animal Diversity4
- Ch. 33 - An introduction to Invertebrates6
- Ch. 34 - The Origin and Evolution of Vertebrates7
- Ch. 35 - Vascular Plant Structure, Growth, and Development10
- Ch. 36 - Resource Acquisition and Transport in Vascular Plants8
- Ch. 37 - Soil and Plant Nutrition11
- Ch. 38 - Angiosperm Reproduction and Biotechnology8
- Ch. 39 - Plant Responses to Internal and External Signals8
- Ch. 40 - Basic Principles of Animal Form and Function8
- Ch. 41 - Animal Nutrition7
- Ch. 42 - Circulation and Gas Exchange7
- Ch. 43 - The Immune System5
- Ch. 44 - Osmoregulation and Excretion6
- Ch. 45 - Hormones and the Endocrine System8
- Ch. 46 - Animal Reproduction9
- Ch. 47 - Animal Development8
- Ch. 48 - Neurons, Synapses, and Signaling6
- Ch. 49 - Nervous Systems8
- Ch. 50 - Sensory and Motor Mechanisms5
- Ch. 51 Animal Behavior6
- Ch. 52 - An Introduction to Ecology and the Biosphere7
- Ch. 53 - Population Ecology9
- Ch. 54 - Community Ecology9
- Ch. 55 - Ecosystems and Restoration Ecology8
- Ch. 56 - Conservation Biology and Global Change6
Chapter 30, Problem 1
Where in an angiosperm would you find a megasporangium?
a. In the style of a flower
b. Enclosed in the stigma of a flower
c. Within an ovule contained within an ovary of a flower
d. Packed into pollen sacs within the anthers found on a stamen
Verified step by step guidance1
Understand the structure of an angiosperm flower: Angiosperms, or flowering plants, have reproductive structures that include the stamen (male part) and the pistil (female part). The pistil consists of the ovary, style, and stigma.
Identify the function of the megasporangium: The megasporangium is a structure where megaspores are produced. In angiosperms, it is involved in the development of the female gametophyte.
Locate the ovule: The ovule is found within the ovary of the flower. It is the site where the megasporangium is located.
Connect the ovule to the megasporangium: Within the ovule, the megasporangium is enclosed and is responsible for producing megaspores through meiosis.
Conclude the location: Based on the structure and function, the megasporangium is found within an ovule contained within the ovary of a flower, which corresponds to option c.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Angiosperm Reproductive Structures
Angiosperms, or flowering plants, have complex reproductive structures. The flower is the main reproductive organ, consisting of male parts (stamens) and female parts (pistils). Understanding the anatomy of these structures, including the ovary, style, stigma, and anthers, is crucial for identifying where specific reproductive processes occur.
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Fungi Reproduction - 3
Megasporangium
The megasporangium is a structure within the ovule of seed plants where megaspores are produced. In angiosperms, the ovule is located within the ovary of the flower. The megasporangium plays a vital role in the development of female gametophytes, which are essential for sexual reproduction in plants.
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Ovule and Ovary
The ovule is the structure within the ovary of a flower that develops into a seed after fertilization. It contains the megasporangium, where megaspores are formed. The ovary is the enlarged basal portion of the pistil, which houses the ovules and eventually matures into fruit, protecting and dispersing seeds.
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Related Practice
Textbook Question
Which of the following is a characteristic that distinguishes gymnosperms and angiosperms from other plants?
a. Alternation of generations
b. Independent gametophytes
c. Vascular tissue
d. Ovules
Textbook Question
Which of the following are present in angiosperms but not in gymnosperms?
A. seeds
B. pollen
C. ovaries
D. ovules