Question

Which of these methods of transport of substances needs energy?

• A. Absorption of water from the soil.
• B. Absorption of minerals from the soil.
• C. Diffusion of oxygen into the stomata
• D. Movement of water to the leaves

Answer 1

The correct option is B

Absorption of minerals from the soil.

The correct answer is option B

Explanation of correct answer.

Option B - Absorption of minerals from the soils.

1. Active transport requires energy.
2. The concentration of minerals is already higher in cells as essentials minerals are present.
3. Therefore energy is required for the absorption of minerals from the soils.

The explanation for the other option.

Option A - Absorption of water from the soil.

1. Root hairs are present in the roots and help in the absorption of water from the soil.

Option C - Diffusion of oxygen through stomata.

1. It occurs from higher concentration to lower concentration.
2. Hence, does not require any energy.

Option D - Movement of water to leaves.

1. It does not require energy.

Hence, the absorption of minerals from the soil is the method of transport of substances that needs energy.