Transport in plants answers two questions: how does water reach the leaves, and how does sugar reach the rest of the plant? This page shows the order of the four lessons and where to start.
The chapter sits in SPM Biology and pairs naturally with transport in humans and animals, where the same problem is solved with a heart and blood.
How do the four skills connect?
Water comes first because it is the simpler movement. Sugar movement and the structural comparison use it as a base.
- Explaining water movement through a plant follows water from root to leaf.
- Interpreting transpiration data reads tables and graphs of water loss.
- Explaining translocation follows sugar from leaf to storage or growing parts.
- Comparing xylem and phloem structure and function brings both tissues into one table.
What is the idea behind the chapter?
Two separate journeys share one stem. Water travels up in the xylem, and sugar travels around in the phloem.
Consider this example. A water molecule enters a root hair, crosses the root, and rises in the xylem to a leaf. It evaporates from a leaf cell and leaves through a stoma as vapour.
A sugar molecule made in the same leaf enters the phloem and travels down to a growing root tip. One journey goes up only and loses water, and the other goes both ways and delivers food.
Where should you start?
Start with the skill that produced your last wrong answer.
- Water movement is unclear: open the water lesson.
- Tables of transpiration data confuse you: open the data lesson.
- Sugar movement is shaky: open translocation.
- You want to check everything: try the transport in plants practice set.
Can one-to-one lessons help here?
They help when a student knows the words but mixes up the two routes. A teacher can ask you to narrate each journey and stop you when the routes cross. See online one-to-one Biology tuition.