Which description best matches the function of the stem?

Which description best matches the function of the stem?

• A. Transport and support structure; xylem and phloem
• B. Absorb water and minerals
• C. Carry sugar throughout plant
• D. Contain chlorophyll

Answer: (A)

The stem mainly acts as the plant’s transport system and backbone. It contains vascular tissue—the xylem and phloem—that moves substances around and provides support. Xylem carries water and minerals from the roots upward to the rest of the plant, while phloem distributes sugars produced in the leaves to other tissues. The stem’s rigid tissues also help hold the plant upright, enabling sun exposure for photosynthesis and efficient transport routes. Absorbing water and minerals happens mainly in the roots, not the stem. Carrying sugar throughout the plant is the job of the phloem, which is part of the stem’s transport system, but the stem’s overall function centers on both transport and support. Chlorophyll is found in leaf cells, not primarily in the stem.

The stem mainly acts as the plant’s transport system and backbone. It contains vascular tissue—the xylem and phloem—that moves substances around and provides support. Xylem carries water and minerals from the roots upward to the rest of the plant, while phloem distributes sugars produced in the leaves to other tissues. The stem’s rigid tissues also help hold the plant upright, enabling sun exposure for photosynthesis and efficient transport routes. Absorbing water and minerals happens mainly in the roots, not the stem. Carrying sugar throughout the plant is the job of the phloem, which is part of the stem’s transport system, but the stem’s overall function centers on both transport and support. Chlorophyll is found in leaf cells, not primarily in the stem.