Which of the following is a primary function of stems?

Which of the following is a primary function of stems?

• A. Transports water and nutrients
• B. Performs photosynthesis
• C. Absorbs water from soil
• D. Produces pollen

Answer: (A)

The main role of stems is to move water and minerals from the roots to the rest of the plant, and to transport sugars produced during photosynthesis to tissues that need them. This relies on the plant’s vascular system, with xylem carrying water and dissolved minerals upward, and phloem distributing sugars and other nutrients to leaves, roots, and developing tissues. Stems also provide support and can store nutrients, but the transportation function is the core job that makes stems essential. Photosynthesis happens mainly in leaves (and sometimes in green stems), while pollen production occurs in the flowers. So, transporting water and nutrients best fits as the primary function.

The main role of stems is to move water and minerals from the roots to the rest of the plant, and to transport sugars produced during photosynthesis to tissues that need them. This relies on the plant’s vascular system, with xylem carrying water and dissolved minerals upward, and phloem distributing sugars and other nutrients to leaves, roots, and developing tissues. Stems also provide support and can store nutrients, but the transportation function is the core job that makes stems essential. Photosynthesis happens mainly in leaves (and sometimes in green stems), while pollen production occurs in the flowers. So, transporting water and nutrients best fits as the primary function.