Multiple Choice
What are the primary functions of stems in plants?
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33. Plant Anatomy
Roots and Shoots
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Which type of roots grow directly downward?
A
Taproots
B
Aerial roots
C
Adventitious roots
D
Fibrous roots
Verified step by step guidance1
Begin by understanding the different types of roots mentioned in the problem: taproots, aerial roots, adventitious roots, and fibrous roots.
Taproots are characterized by a single, thick primary root that grows directly downward into the soil. This type of root system is typical in dicot plants and helps anchor the plant while accessing deep water sources.
Aerial roots are roots that grow above the ground, often found in plants like orchids and mangroves. They do not grow downward into the soil.
Adventitious roots arise from non-root tissues, such as stems or leaves, and can grow in various directions, not necessarily downward.
Fibrous roots consist of many small roots that spread out in all directions from the base of the plant, forming a dense network. They do not have a single primary root growing directly downward.
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