Plant roots take in water, minerals and oxygen from the surrounding soil. The water is needed for photosynthesis in the leaves, the minerals are needed for many processes and the oxygen is needed for respiration in the root cells.Which of the following statements correctly describes how plants are able to take in oxygen through their roots?There are very small amounts of minerals in the surrounding soil. These minerals diffuse into the roots where there is a high concentration of them.Minerals diffuse into the plant through its roots. The minerals move from an area of low concentration, in the soil, to an area of high concentration, in the plant roots.Minerals move into the roots from the soil by a process called osmosis.There is a lower concentration of oxygen in the roots than in the surrounding soil. The oxygen diffuses into the roots from the soil.
Question
Plant roots take in water, minerals and oxygen from the surrounding soil. The water is needed for photosynthesis in the leaves, the minerals are needed for many processes and the oxygen is needed for respiration in the root cells.Which of the following statements correctly describes how plants are able to take in oxygen through their roots?There are very small amounts of minerals in the surrounding soil. These minerals diffuse into the roots where there is a high concentration of them.Minerals diffuse into the plant through its roots. The minerals move from an area of low concentration, in the soil, to an area of high concentration, in the plant roots.Minerals move into the roots from the soil by a process called osmosis.There is a lower concentration of oxygen in the roots than in the surrounding soil. The oxygen diffuses into the roots from the soil.
Solution
The correct statement that describes how plants are able to take in oxygen through their roots is: "There is a lower concentration of oxygen in the roots than in the surrounding soil. The oxygen diffuses into the roots from the soil."
Here's why:
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Oxygen, like other gases, moves from areas of high concentration to areas of low concentration. This process is known as diffusion. In the case of plant roots, the concentration of oxygen is lower in the roots than in the surrounding soil. Therefore, oxygen naturally diffuses from the soil (high concentration) into the roots (low concentration).
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The other statements are incorrect because they are discussing the movement of minerals, not oxygen. While it's true that minerals also move from areas of low concentration to high concentration (a process known as active transport), the question specifically asked about oxygen.
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The statement about osmosis is
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