Multiple Choice
Which example below is the site of primary growth that results in the plant's increasing in height?
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33. Plant Anatomy
Growth
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Lateral roots in seed plants are initiated by cell divisions in the __________.
A
vascular cambium
B
endodermis
C
lateral meristems
D
cortex
E
pericycle
Verified step by step guidance1
Understand the structure of a plant root: A plant root is composed of several layers, including the epidermis, cortex, endodermis, and vascular tissues. The pericycle is located just inside the endodermis and surrounds the vascular tissues.
Identify the role of the pericycle: The pericycle is a layer of cells that has the ability to divide and form new roots. It is crucial for the initiation of lateral roots in seed plants.
Recognize the process of lateral root formation: Lateral roots begin as small protrusions from the pericycle. These cells undergo division and differentiation to form a new root structure.
Differentiate between the pericycle and other root tissues: While the vascular cambium, endodermis, lateral meristems, and cortex have their own functions, they do not initiate lateral roots. The pericycle is specifically responsible for this process.
Conclude with the correct answer: Based on the understanding of root anatomy and the role of the pericycle, lateral roots are initiated by cell divisions in the pericycle.
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