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Biology Exam #3: Special Roots, Stems, and Leaves
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14
Biology
Undergraduate 1
04/01/2010

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Term
Prop roots
Definition
Support tall, top-heavy plants; example: corn.
Term
Storage Roots
Definition
Store food and water; example: raddish.
Term
Pneumatophores
Definition
Project above surface to obtain oxygen; example: mangroves.
Term
"Strangling" aerial roots
Definition
Wrap around host trees; example: strangler fig.
Term
Buttress roots
Definition
Aerial roots that support tall trunks of some tropical trees; example: cebia tree.
Term
Rhizomes
Definition
Horizontal shoot that grows just below the surface; example: iris plant.
Term
Bulbs
Definition
Vertical underground shoots consisting mostly of the enlarged bases of leaves that store food; layers; example: onions.
Term
Stolons
Definition
Horizontal shoots that grow along the surface; enable a plant to reproduce asexually; example: strawberries.
Term
Tubers
Definition
Enlarged ends of rhizomes or stolons that are specialized for storing food; example: potatoes.
Term
Tendrils
Definition
Modified leaves that cling to other plants for support; example: pea plant.
Term
Spines
Definition
Spiky leaves for protection from animals; example: cactus.
Term
Storage leaves
Definition
Leaves modified for storing water; example: ice plant.
Term
Reproductive leaves
Definition
Produce plantlets that fall off the leaf and take root in the soil; example: Kalanchoe.
Term
Bracts
Definition
Brightly colored to attract pollinators; example: poinsettia.
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