Testing a leaf for starch Flashcards
1
Q
if starch is present what colour does the iodine solution go
A
purple/ dark blue
2
Q
if starch isn’t present what colour does iodine solution go
A
stays orange
3
Q
what gives the leaf the green colour
A
chloroplasts/chlorophyll
4
Q
why do chloroplasts need removing
A
the chlorophyll in them may still photosynthesize and interfere with the test
