Chromatography of Photosynthetic Pigments (AQA A-Level Biology): Flashcards
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Practise the cards
10 cards from this deck
Mobile phase in chromatography
Mobile phase in chromatography
The solvent carrying dissolved pigments
Stationary phase in chromatography
Stationary phase in chromatography
The chromatography paper
value formula
value formula
Effect of high solubility on pigment travel
Effect of high solubility on pigment travel
Pigment travels further/faster up paper
Effect of low affinity to paper
Effect of low affinity to paper
Pigment travels further, higher value
Pigment with highest value (~0.9)
Pigment with highest value (~0.9)
Carotenes (orange)
Pigment with lowest value (~0.4)
Pigment with lowest value (~0.4)
Chlorophyll b (green)
Why use pencil not pen for baseline?
Why use pencil not pen for baseline?
Ink interferes with results and obscures separation
Safety properties of acetone/chromatography solvents
Safety properties of acetone/chromatography solvents
Flammable and cause eye/skin irritation
Shade-tolerant plant pigment adaptation
Shade-tolerant plant pigment adaptation
Higher chlorophyll b concentration