International A Level Biology / Plant structure and function

Conditions for bacterial growth and plant antimicrobials

Edexcel International A Level Biology (YBI11), chapter 10: Plant structure and function, specification point 4.10, 4.11. Part of the full course.

Read the revision notes · International A Level Biology past papers

Bacteria need the right substances and conditions to respire, make new cells and keep their enzymes working. Plants also make chemicals that can kill microorganisms or be used as medicines.

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
• Water, nitrate, calcium and magnesium
• Investigating plant mineral deficiencies
• Core practical 8: tensile strength of plant fibres
• Core practical 9: antimicrobial plants and aseptic technique
• From digitalis soup to three-phase trials