National League for Nursing (NLN PAX) Practice Exam

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What is the primary function of the xylem in a plant?

Transport food throughout the plant

Transport water and minerals from the roots

The primary function of the xylem in a plant is to transport water and minerals from the roots to various parts of the plant, including the stems and leaves. This process is essential for plant health, as water is vital for photosynthesis and maintaining turgor pressure, which helps the plant stay rigid and upright. Additionally, the minerals transported alongside the water are crucial for various physiological processes, including growth and development.

While other functions such as food transport conducted by phloem, nutrient storage, and providing structural support are important to plant biology, they do not relate to the role of the xylem. The xylem specifically facilitates the upward movement of water and dissolved minerals, making it essential for the plant's overall maintenance and functionality.

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Store nutrients

Support plant structure

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