Translocation (AQA GCSE Biology Combined Science): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Translocation definition
Translocation definition
Transport of dissolved sugars from leaves through phloem to other plant parts
Where translocation occurs
Where translocation occurs
Phloem vessels
Main sugar form in translocation
Main sugar form in translocation
Sucrose
Source in translocation
Source in translocation
Leaves where sugars are produced
Sink in translocation
Sink in translocation
Where sugars are used or stored
Direction of sugar movement in phloem
Direction of sugar movement in phloem
Both directions (unlike transpiration)
What drives translocation
What drives translocation
Pressure differences between source and sink
Two components of phloem
Two components of phloem
Sieve tube elements and companion cells
Effect of higher temperature on translocation
Effect of higher temperature on translocation
Increases rate by speeding up metabolism
Tracer used to measure translocation
Tracer used to measure translocation
Radioactive carbon-14