Name two factors required for starch formation which are being investigated. Name the reagent to be used when testing a leaf for starch. State one safety precaution to be taken into account when testing the leaf for starch.

c) (i) Before the leaf was destarched: Shade the entire leaf. (ii) After the leaf was destarched: Do not shade any part of the leaf. (iii) When the leaf partly covered with foil was tested for the presence of starch: Shade the outer parts of the leaf (the areas not covered by the foil). d) Two factors required for starch formation which are being investigated: 1. Light 2. Chlorophyll e) (i) The reagent to be used when testing a leaf for starch is iodine solution. (ii) One safety precaution to be taken into account when testing the leaf for starch is to heat the alcohol in a water bath because alcohol is highly flammable and should not be heated directly over a naked flame. That's 2 down. 3 left today — send the next one.