- published: 20 Oct 2015
- views: 3822
Amylopectin /ˌæmᵻloʊˈpɛktᵻn/ is a solublepolysaccharide and highly branched polymer of glucose found in plants. It is one of the two components of starch, the other being amylose.
Glucose units are linked in a linear way with α(1→4) glycosidic bonds. Branching takes place with α(1→6) bonds occurring every 24 to 30 glucose units, resulting in a soluble molecule that can be quickly degraded as it has many end points onto which enzymes can attach. In contrast, amylose contains very few α(1→6) bonds, or even none at all. This causes amylose to be hydrolyzed more slowly, but have higher density and be insoluble.
Its counterpart in animals is glycogen, which has the same composition and structure, but with more extensive branching that occurs every eight to 12 glucose units.
Plants store starch within specialized organelles called amyloplasts. When energy is needed for cell work, the plant hydrolyzes the starch, releasing the glucose subunits. Humans and other animals that eat plant foods also use amylase, an enzyme that assists in breaking down amylopectin.
Video shows what amylopectin means. A highly branched, insoluble form of starch (the soluble form being amylose). Amylopectin Meaning. How to pronounce, definition audio dictionary. How to say amylopectin. Powered by MaryTTS, Wiktionary
In this video presentation, I discuss the catabolisation of amylose and amylopectin, and show a video suggesting that starch should be the centre of the human diet.
https://www.megazyme.com/ Amylose Amylopectin Assay Kit - This test kit is suitable for the measurement and analysis of amylose amylopectin ratio and content in cereal starches and flours.
https://goo.gl/31T06Y to unlock the full series of AS, A2 & A-level Biology videos created by A* students for the new OCR, AQA and Edexcel specification. In this video we cover the uses of polysaccharides as energy stores and structural units. On the way we’ll look the use of glucose in respiration, and then how it can be stored in the form of starch and glycogen, revisiting glycosidic bonding and introducing amylose and amylopectin. Then we will cover the bonding in cellulose making microfibrils, then macrofibrils and pectins, all the while linking structure to function. As ever there’s an exam style question to solidify everything learnt.
Learn how to say words in English correctly with Emma Saying free pronunciation tutorials. Over 140,000 words were already uploaded... Check them out! Visit my homepage: http://www.emmasaying.com Care to show your support? Give me some love on Patreon here: http://www.patreon.com/EmmaSaying ~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ Emma's English Pronunciation Course - Get a 50% Off Coupon for FREE! http://emmasaying.com/english-pronunc... * Limited Quantity - Better Hurry Up :-) ~~~~~~~~~~~~~~~~~~~~~~~~~~
Sign Up for The Underground Newsletter - http://www.yowhatsupyall.com How Wheat Makes You Fat! Sean discusses the book Wheat Belly by Dr. William Davis and how wheat is making us fat and how it is worse than consuming sugar. Wheat is 70% carbohydrates. Of that 70%, 75% is amylopectin and 25% is amylose. Amylase is the enzyme in your mouth and stomach that breaks down amylose. There are 3 types of amylopectin - amylopectin C is found in beans and it is not easily digested. Amylopectin B is found in potatoes and bananas. Amylopectin A is what is found in wheat. Amylase has a high infinity for amylopectin A and breaks it down easily. When that gets down to your intestine, it turns to sugar and gets to your blood stream. The body has to have somewhere to put the sugar so the pancreas increa...
Donate here: http://www.aklectures.com/donate.php Website video link: http://www.aklectures.com/lecture/polysaccharides-glycogen-starch-and-cellulose Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com