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What is an amylose?

Updated: 8/11/2023
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An amylose is the soluble form of starch which is a linear polymer of glucose.

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Q: What is an amylose?
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Continue Learning about Earth Science

What is amylase and what type of organic compound does it breakdown?

Amylase is an enzyme that specifically speeds up the breakdown of amylose (aka starch)


What is the difference between amylose and amylopectin?

Amylopectin is easer for enzymes to get around and break it down. Amylose is a long unbranced chain of glucose, it has a cylinder like structure wich makes it compact so its good for storage. Amylopectin is a long branched chain of glucose, its structure is a benifit because enzymes that break glycosidic bonds to break down the moleclue get to it faster. This means glucose is released faster.


In a disaccharide two monosaccharides are joined by what kind of bond?

Junctions between saccharide molecules are called glycoside bonds. This not only includes mono saccharides to form disaccharides but also many to form polysaccharides like amylopectin and amylose found in the starch of plants and glycogen in animals.


Why glycogen gives red colour with iodine?

When Iodine is added to amylose, the helical shape of the unbranched polysaccharide traps Iodine molecules, producing a deep blue-black complex. Amylopectin, cellulose, and Glycogen react with iodine to give red to brown colors. Glycogen produces a reddish-purple color.


Why iodine is used in starch hydrolysis test?

Iodine in water solutions is usually colored strong enough so that its presence can be detected visually. However, close to the end point, when the iodine concentration is very low, its yellowish color is very pale and can be easily overlooked. Thus for the end point detection starch solutions are used.