Add lodine-Kl reagent to a solution or food substance. A blue black color results if starch is present. If starch amylose is not present, then the color will stay orange or yellow.
Starch amylopectin does not give the color, nor does cellulose, nor do disaccharides such
as sucrose in sugar.

What role do bacteria play in the carbon cycle

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.