In which direction does water mostly move in xylem?
Answer and explanation
Correct answer: From roots to leaves
Roots absorb water and mineral ions from the soil, and xylem vessels conduct them through the stem to aerial parts. Transpiration from leaves creates a pull that helps maintain this upward movement, assisted by cohesion between water molecules and adhesion to vessel walls. Therefore, the usual direction is from roots to leaves, making option A correct. The other directions do not represent the main xylem pathway.
Frequently asked questions
What is the correct answer to this question?
From roots to leaves
Why is this the correct answer?
Roots absorb water and mineral ions from the soil, and xylem vessels conduct them through the stem to aerial parts. Transpiration from leaves creates a pull that helps maintain this upward movement, assisted by cohesion between water molecules and adhesion to vessel walls. Therefore, the usual direction is from roots to leaves, making option A correct. The other directions do not represent the main xylem pathway.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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