The parts without chlorophyll do not photosynthesise, and so they do not make starch and the iodine does not change colour. The leaf on the left is a variegated leaf. The green parts contain ...

This food-making process takes place in the leaf in numerous cells containing chlorophyll, which gives the leaf its green color. This extraordinary chemical absorbs from sunlight the energy that is ...

It is the chloroplasts that contain the green pigment chlorophyll which absorbs ... Photosynthesis happens in the leaves of all green plants. Without photosynthesis there would be no oxygen ...

Without chlorophyll, the "true" color of leaves comes through, according to the Smoky Mountains website. Changed leaves then ...