Leaf starch test on leaves that have been kept in the dark (right) and exposed to light (left). This test uses iodine,which gives a dark blue colour in the presence of starch. Starch is a carbohydrate produced in leaves by photosynthesis. To perform the test,the leaves were boiled in alcohol to remove the green pigment chlorophyll,then had an iodine solution applied | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Molloy, Cordelia |
Taille de l’image : | 5126 px × 3417 px |
Model Release : | Non requis |
Property Release : | Non requis |
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