Capillarity in a Plant Stem (Leaving Cert Agricultural Science): Flashcards
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Practise the cards
10 cards from this deck
Definition of capillarity
Definition of capillarity
Water moving up narrow spaces in plant stems against gravity
Equipment for capillarity practical
Equipment for capillarity practical
2 beakers, scissors, celery, food colouring, water
Duration of capillarity experiment
Duration of capillarity experiment
30 minutes
Xylem vessels
Xylem vessels
Water-carrying tubes in plants
How capillary action works
How capillary action works
Water sticks to tube walls & itself, pulls upward
Observable result in celery stem
Observable result in celery stem
Coloured water moves up in distinct dot patterns
Purpose of control beaker
Purpose of control beaker
Confirms changes due to stem not other factors
Why capillarity is essential
Why capillarity is essential
Transports water & nutrients from roots to leaves
Why make fresh cut on celery stem
Why make fresh cut on celery stem
Ensures good water uptake
What stem cross-sections reveal
What stem cross-sections reveal
Circular arrangement of transport tubes