Which statement best explains why phloem transport is considered an energy-dependent process?
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Correct answer: Active loading and unloading of sugars often require ATP
Sugar loading and unloading in phloem may involve active transport, which requires ATP. This energy use helps establish the concentration gradients that drive pressure flow.
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More Phloem questions
- What is the primary transport function of phloem in vascular plants?
- Which of the following is the main conducting element of phloem in angiosperms?
- Which cells are closely associated with sieve tube elements in angiosperm phloem?
- Why do mature sieve tube elements depend on companion cells?
- What are sieve plates in phloem?
- Which sugar is most commonly transported through phloem in many plants?