Tracer & Ringing Experiments (AQA A-Level Biology): Flashcards
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Practise the cards
10 cards from this deck
Tissue that transports water in plants
Tissue that transports water in plants
Xylem
Tissue that transports sugars & amino acids
Tissue that transports sugars & amino acids
Phloem
Experiment removing phloem ring from woody stem
Experiment removing phloem ring from woody stem
Ringing experiment
Effect above ring in ringing experiment
Effect above ring in ringing experiment
Swelling due to sugar accumulation
Effect below ring in ringing experiment
Effect below ring in ringing experiment
Tissues wither and die
What ringing experiments prove about sugar transport
What ringing experiments prove about sugar transport
Phloem transports sugars, not xylem
Isotope used to trace sugar movement in plants
Isotope used to trace sugar movement in plants
Carbon-14 (C)
Technique using X-ray film to detect radioactive sugars
Technique using X-ray film to detect radioactive sugars
Autoradiography
Where autoradiography shows radioactive sugars
Where autoradiography shows radioactive sugars
In phloem tissue only
Movement of organic molecules through phloem
Movement of organic molecules through phloem
Translocation