after the plant photosynthesises, it has some left over glucose that the leaves covert into starch. The starch is then stored in the chlorophyl (the green pigment in the leaves). At night or in the dark, the plant can't photosynthesise so it respires the stored starch instead
It turns purple because of the high consistency of starch that would be used to feed the seedling for growth.
In the presence of starch, iodine turns purple.
the leaf that contains starch will turn blue/black if not it will stay the same colour
In Iodine Test the color that will confirm the presence of starch is black,dark brown or very dark purple
Starch accumulates in leaves when it goes through photosynthesis, and they store extra food in the form of starch.
You cannot.ANS#2:By the process of Retro-gradation starch can be extracted from leaves.
Starch
after the plant photosynthesises, it has some left over glucose that the leaves covert into starch. The starch is then stored in the chlorophyl (the green pigment in the leaves). At night or in the dark, the plant can't photosynthesise so it respires the stored starch instead
purple
purple
turns purple
Iodine and starch.
starch is one substance stored in plants because starch is not osmotically active
more sunlight
Black/Dark purple.
put a few drops of iodine on the subject, if it turns purple theres starch.