Concept explainers
To explain: The reason why stomata need to be closed, but lenticels do not.
Concept introduction:
The woody plants possess an outer hard layer called periderm in the trunks of plants. The periderm is derived from the cork cambium, a component of lateral meristem. This layer protects trees from microbial attack and insect invasions. Lenticels are loose aggregate of cells in the periderm. They help in gaseous exchange between the atmosphere and the living tissue inside the bark.
The stomata are openings in the epidermis of the leaf that allow exchange of gases. These are also the sites where the maximum evaporation takes place. The stomata are surrounded by guard cells that control their opening and closing.
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Campbell Biology: Concepts & Connections
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- The stomata are tiny openings in leaves that, when open, allow water to evaporate. In what circumstances do you expect that stomata to be closed?arrow_forwardIf a plant’s stomata are made to stay open at all times, orclosed at all times, it will die. Why?arrow_forwardwhy do stomata open due to high humidity?arrow_forward
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