Question

Which of the following statements about nutrient uptake by plants is true?

a) Root hairs increase the volume of roots for more efficient absorption of water and nutrients.
b) Plants can easily absorb mineral ions from soil with large amounts of organic matter.
c) Plants require other elements besides carbon, hydrogen, and oxygen to grow, and they can obtain these in soil.
d) Positively charged ions remain dissolved in water and are easily absorbed by plant roots.

Answer 1

The true statement about C. plant nutrient uptake is that plants require elements other than carbon, hydrogen, and oxygen to grow, which they obtain from the soil.

Step-by-step explanation:

The question asks which statement about nutrient uptake by plants is true. The correct answer is (c) Plants require other elements besides carbon, hydrogen, and oxygen to grow, and they can obtain these in soil. While carbon, hydrogen, and oxygen are primarily obtained from the atmosphere and rainfall, essential nutrients like nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur are absorbed from the soil through plant roots. These nutrients are used in various biological functions such as protein synthesis, chlorophyll synthesis, energy transfer, and maintaining homeostasis within the plant.

One of the statements about nutrient uptake by plants that is true is that root hairs increase the volume of roots for more efficient absorption of water and nutrients. Root hairs are thin outgrowths of root epidermal cells that greatly increase the surface area for water and nutrient absorption. They extend into the soil and help plants take up water and nutrients from the surrounding environment.