Living phloem cells, such as sieve tubes, companion cells, and phloem parenchyma, are essential for maintaining the metabolic processes involved in the transport of food throughout the plant. This ensures efficient distribution of nutrients to support growth, development, and energy requirements.
Why is it significant that most phloem cells, except phloem fibers, are living cells?
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The fact that most phloem cells, except phloem fibers, are living is significant because living cells can actively transport sugars and other organic compounds produced during photosynthesis throughout the plant. This allows for efficient distribution of nutrients and energy, supporting growth, metabolism, and other physiological processes in various parts of the plant.