Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

Root pressure & translocation HL (2025)

A short activity introducing phloem sieve tubes and translocation using a video and a worksheet followed by a worksheet outlining some experiments to measure translocation direction and rates and some data analysis question. If water travels from roots to leaves how can plants move sugars in the opposite direction? Why do root hair cells and phloem cells in the leaves both use active transport? The majority of the...

Help