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(i) A plant is growing in soil with a very low concentration of mineral ions - Edexcel - GCSE Biology - Question 5 - 2014 - Paper 1
Question 5
(i) A plant is growing in soil with a very low concentration of mineral ions. Explain how these mineral ions are taken into the plant from the soil. (ii) Place a ... show full transcript
Worked Solution & Example Answer:(i) A plant is growing in soil with a very low concentration of mineral ions - Edexcel - GCSE Biology - Question 5 - 2014 - Paper 1
Step 1
Explain how these mineral ions are taken into the plant from the soil.
Answer
Mineral ions are absorbed by root hair cells through the process of active transport. This process requires energy to move ions against a concentration gradient. Since the concentration of mineral ions in the soil is low, they are transported into the plant cells where the concentration is higher, allowing the plant to uptake necessary nutrients effectively.