STARCH
Iodine can be used to identify starch.
They test for carbohydrates. The Iodine reagent tests for starch. The Benedict's reagent tests for small sugars. Most carbohydrates are are made of sugar, and starch is a type of carbohydrate.
carbohydrates, for one
Starch has high affinity for Iodine and in presence of iodine crystals starch turns blue from being colourless. This the fundamental that is used for chemically identifying the starch.
Most likely the sucrose test. what biologist use is the iodine test. Iodine is used to test for the presence of starch( a polysaccharide) any material containing starch always turn blue-black when iodine is added.
It is either iodine and it stains starch, or the other way around, starch that stains iodine, likely the former as it is biological. Starch or iodine can be used in chemical titrations also to indicate the presence of the other available in solution.
The fat titties that I have that boys in my school stare at indicate the boners to the boys with smelly cocks.
carbon
There are several biological stains that can be used for plants. Some of the usual stains used on plants are toluidine blue, iodine, and Eosin Y.
The goitre is used as a biological marker for iodine deficiency. Goitre manifestation indicates that other damaging effects of iodine deficiency are already present.
Iodine (in fact the ion triiodide - I-3 - form with starch a very colored complex; the reaction is specific and sensible.
Iodine is used to indicate whether starch is present in a solution. If starch IS present, the indicator will turn dark blue/black. Iodine is used to indicate whether starch is present in a solution. If starch IS present, the indicator will turn dark blue/black. FOR WHAT PURPOSE WE USE STARCH-IODINE INDICATOR PAPER
it is used to indicate acidic radicals which reacts with the iodide solution.
Ioddine chloride is a linear molecule with an electronegativity different of 0.5 meaning that the bond between I and Cl is polar. Since the molecule is linear, the molecule is over-all is polar.
Although it won't purify water (which is to say, remove impurities) it can be used to kill many unsafe biological agents. Please see the link.
Iodine is used to dress wounds.
Iodine is not used as an insulator.