TRANSLOCATION - The Movement of Sugar in Plants AQA A-Level Biology
A-Level Biology - Mass Transport in Plants - Translocation
Learn about: translocation, moving sugars like sucrose from source to sink, mass flow, the phloem, sieve tube elements, sieve plates, the co-transport of sucrose, companion cells and more! I'll also take you through some past paper questions and how to approach the practical questions.
I'll take you through exactly what you need to know to smash your exams.
Subscribe and turn on notifications for more help with your exams 🔔
Instagram:
@Mr_Howe_Biology
Twitter:
@MrHoweBiology
Image credits:
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
Пікірлер: 3
How are you finding the co-transport of sucrose? 🌱
4:27 I don't fully get the diagram. I get the process with the protons but I don't get the cell(?) in between the sugar-producing cell and the companion cell.
@mrhowebiology7667
2 жыл бұрын
Great question - it represents the intercellular space between cells but the key bit you need to know for AQA is about the co-transport of sucrose and the fact it requires proteins to get across cell membranes as it is too large to diffuse directly through the phospholipids UNLESS it moves through plasmodesmata which are pores between plants cells.