Textbook Question
Most of the growth of a plant body is the result of
a. Cell differentiation
b. Morphogenesis
c. Cell division
d. Cell elongation
Ch. 35 - Vascular Plant Structure, Growth, and Development
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 35, Problem 4
The phase change of an apical meristem from the juvenile to the mature vegetative phase is often revealed by
a. A change in the morphology of the leaves produced
b. The initiation of secondary growth
c. The formation of lateral roots
d. The activation of floral meristem identity genes
Verified step by step guidance1
Understand the concept of apical meristem: Apical meristems are regions of actively dividing cells at the tips of roots and shoots in plants, responsible for primary growth and elongation.
Identify the juvenile and mature vegetative phases: The juvenile phase is characterized by rapid growth and development, while the mature vegetative phase involves more specialized functions and structures.
Examine the options provided: Consider how each option relates to the transition from juvenile to mature vegetative phase in plants.
Analyze option a: A change in leaf morphology often indicates a shift in developmental phase, as leaves may become more complex or specialized in the mature phase.
Consider the role of floral meristem identity genes: Activation of these genes is typically associated with the transition to reproductive phase, not the vegetative phase change.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Apical Meristem
The apical meristem is a region of actively dividing cells located at the tips of roots and shoots in plants. It is responsible for primary growth, allowing the plant to increase in length. This meristem is crucial for the transition from juvenile to mature phases, as it dictates the development and differentiation of new tissues.
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Primary Meristems
Juvenile to Mature Vegetative Phase
The transition from juvenile to mature vegetative phase in plants involves changes in growth patterns and morphology. During this phase change, plants may exhibit alterations in leaf shape, size, and structure, reflecting their adaptation to environmental conditions and readiness for reproductive development.
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Floral Meristem Identity Genes
Floral meristem identity genes are crucial for the initiation of flowering in plants. These genes regulate the transformation of vegetative meristems into floral meristems, marking the plant's transition from vegetative growth to reproductive development. Activation of these genes is a key indicator of the plant reaching maturity.
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Related Practice
Textbook Question
The innermost layer of the root cortex is the
a. Core
b. Pericycle
c. Endodermis
d. Pith
Textbook Question
Heartwood and sapwood consist of
a. Bark
b. Periderm
c. Secondary xylem
d. Secondary phloem
Textbook Question
The vascular cambium gives rise to
a. All xylem
b. All phloem
c. Primary xylem and phloem
d. Secondary xylem and phloem
Textbook Question
The root pericycle is the site where
a. Secondary growth originates.
b. Root hairs originate.
c. Lateral roots originate.
d. The endodermis originates.
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Textbook Question
Root apical meristems are found
a. Only in taproots.
b. Only in lateral roots.
c. Only in adventitious roots.
d. In all roots.