What is the primary function of roots in a plant?

What is the primary function of roots in a plant?

• A. To absorb water and minerals
• B. To carry out photosynthesis
• C. To produce seeds
• D. To absorb carbon dioxide

Answer: (A)

The main idea here is that roots primarily absorb water and minerals from the soil. Water taken up by the roots is essential for keeping the plant turgid and for driving many processes, including photosynthesis in the leaves. Minerals dissolved in that water, like nitrogen, potassium, and phosphorus, provide nutrients the plant needs to grow and stay healthy. Root hairs on young roots increase the surface area to maximize absorption, and the water and minerals travel upward through the plant’s vascular system to the leaves where photosynthesis occurs. Roots also help anchor the plant, but the job most closely tied to their function is taking in water and minerals. Photosynthesis happens mainly in the leaves, not the roots, and carbon dioxide is absorbed through the stomata in leaves, while seeds are produced by flowers and fruits.

The main idea here is that roots primarily absorb water and minerals from the soil. Water taken up by the roots is essential for keeping the plant turgid and for driving many processes, including photosynthesis in the leaves. Minerals dissolved in that water, like nitrogen, potassium, and phosphorus, provide nutrients the plant needs to grow and stay healthy. Root hairs on young roots increase the surface area to maximize absorption, and the water and minerals travel upward through the plant’s vascular system to the leaves where photosynthesis occurs. Roots also help anchor the plant, but the job most closely tied to their function is taking in water and minerals. Photosynthesis happens mainly in the leaves, not the roots, and carbon dioxide is absorbed through the stomata in leaves, while seeds are produced by flowers and fruits.