Question

To test a leaf for starch, the leaf is boiled in

water to (i) ______. It is then boiled in methylated

spirt to (ii) _______. The leaf is dipped in warm water

to soften it. It is placed in a Petridish, and (iii)_______

solution is added. The region of the leaf which

contains starch, turns (iv)_____ and the region

which does not contain starch, turns (v)_______.​

Answer 1

Answer:

(i) Rupture the cells

(ii) Remove chlorophyll

(iii) Iodine

(iv) Blue-black

(v) Brown