Plant Coverings

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What is the main function of a plant cover?
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The main function is to protect the plant from environmental factors such as weather conditions and pests.
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What are the two main types of plant coverings?
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The two main types are epidermis and periderm.
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What is the epidermis in plants?
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The epidermis is a single layer of cells covering the leaves, flowers, roots, and stems of plants.
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What is the role of the cuticle in plant coverings?
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The cuticle helps reduce water loss from the plant surface.
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How does the epidermis protect the plant?
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It serves as a barrier against injury, infection, and water loss.
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What is the periderm?
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Periderm is the protective tissue in plants that replaces the epidermis during secondary growth.
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In which types of plants is periderm commonly found?
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Periderm is commonly found in woody plants, such as trees and shrubs.
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What is cork, and where is it found in plants?
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Cork is a tissue found in the periderm that provides protection and reduces water loss.
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What is the importance of the stomata in the plant epidermis?
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Stomata are pores that allow gas exchange and transpiration.
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How do trichomes help in plant protection?
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Trichomes can deter herbivores, reduce water loss, and provide protection from harmful sun rays.
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What is lignin and what role does it play in plant coverings?
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Lignin is a complex organic polymer that provides rigidity and does not rot easily, helping to protect plant tissues.
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Why is the cuticle especially important for plants in dry environments?
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It minimizes water loss, which is critical for survival in arid conditions.
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How does the periderm help in plant growth?
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Periderm replaces the epidermis during secondary growth, allowing the plant to grow thicker and protect underlying tissues.
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What adaptations do desert plants have related to their coverings?
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Desert plants often have thick cuticles, reduced leaves, and trichomes to minimize water loss.
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How do plant coverings interact with fungi and bacteria?
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Plant coverings act as a barrier to prevent the entry of pathogens like fungi and bacteria.
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