Xylem and phloem are conducting tissues that constitute vascular bundles in plants. Xylem transports water and minerals from roots to the rest of the plant, while phloem transports sugars and other organic compounds produced through photosynthesis to various parts of ...
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Cells in complex tissues coordinate to perform a common function. In xylem and phloem, for instance, different cell types collaborate to transport water, minerals, and nutrients throughout the plant.
Yes, as plants age, the outer protective tissue undergoes changes. A strip of secondary meristem in the cortex forms layers of cork cells, which constitute the outer layer of the branch and stem.
Desert plants have in their epidermis
The epidermal cells of roots commonly bear long hair-like parts that greatly increase the total absorptive surface area, aiding in water absorption.