The main phloem conducting cells are:

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Quizplus · Accepted Answer

Sieve tube elements are the main phloem conducting cells. These cells are responsible for transporting sugars, amino acids, and other organic compounds throughout the plant. Companion cells are also important for supporting the function of sieve tube elements, but they are not considered the main conducting cells. Tracheids and vessel elements are part of the xylem, which transports water and minerals, not organic compounds. Stomata are small openings on the surface of leaves that regulate gas exchange, but they are not directly involved with phloem function.

The Main Phloem Conducting Cells Are