IB Biology B3.2.10 Root tissue distribution
IB Biology B3.2.10 Root tissue distribution
Practise using root micrographs and transverse sections to locate vascular tissues, including xylem, phloem and lignified regions in the stele.
How this is tested
- interpret root cross-sections to place xylem and phloem in the central stele
- use micrograph labels to distinguish vascular tissue from surrounding cortex cells
- link lignin location to the xylem tissue visible in dicot root sections