How would you test the presence of starch in leaves?

1. Remove a green leaf from the plant

2. Boil the leaf in boiling water stop enzymatic reaction within cells in leaf

3. Put the boiled leaf in boiling tube containing alcohol extract (ethanol) chlorophyll ethanol dissolves Lipids in cell membranes.

4. Return to leave to the hot water soften the leaf and allows penetration of iodine

5. Remove leaf and perform the iodine test

Explanation:

starch is white powdery substance consisting of glucose which is used by plants as food the percents of starch in leaves evidence enough of the process a photosynthesis being carried out in leaves as the formation of starch necessitates photosynthesis.

I hope this helps :)

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.