Cambridge IGCSE Biology, topic 8
Transport in plants
Plants move water, mineral ions and the products of photosynthesis around their bodies in two transport tissues, xylem and phloem. Water is taken up by root hair cells and pulled up to the leaves, where it is lost by transpiration. Sucrose and amino acids are moved by translocation from sources to sinks.
Revision notes
Worksheet
FlashcardsSubtopics
Work through them in order. Each one has notes, exam questions and flashcards, and a PDF of each.
- 1Xylem and phloem Spec 8.1The functions of xylem and phloem, where they are in roots, stems and leaves, and how xylem vessels are adapted.NotesQuestions 6Flashcards 7
- 2Water uptake Spec 8.2How root hair cells take in water and mineral ions, the route water takes through the plant, and how to trace it with a stain.NotesQuestions 6Flashcards 4
- 3Transpiration Spec 8.3Water loss from leaves, the factors that affect its rate, and how transpiration pull draws water up the xylem.NotesQuestions 7Flashcards 10
- 4Translocation SupplementSpec 8.4Movement of sucrose and amino acids in the phloem from sources to sinks.NotesQuestions 4Flashcards 4
Whole topic
When you have done the subtopics: test yourself on everything, or print the lot.