International A Level Biology / Plant structure and function

Water, nitrate, calcium and magnesium

Edexcel International A Level Biology (YBI11), chapter 10: Plant structure and function, specification point 4.8. Part of the full course.

Read the revision notes · International A Level Biology past papers

Plants need water for transport, support, photosynthesis and cooling. Nitrate, calcium and magnesium ions each help make important molecules, so a shortage causes specific symptoms and reduces growth.

More lessons in Plant structure and function

• Cellulose and the plant cell wall
• Plant cell ultrastructure
• Xylem, phloem and sclerenchyma
• Plant fibres, starch and sustainability
• Core practical 7: plan diagrams of roots, stems and leaves
• Investigating plant mineral deficiencies
• Core practical 8: tensile strength of plant fibres
• Conditions for bacterial growth and plant antimicrobials
• Core practical 9: antimicrobial plants and aseptic technique
• From digitalis soup to three-phase trials