| 单词 | disaccharide |
| 例句 | Maltose, or malt sugar, is a disaccharide formed from a dehydration reaction between two glucose molecules. Concepts of Biology 2013-04-25T00:00:00Z Sugars contain some of the functional groups we have discussed: Note the alcohol groups present in the structures and how monosaccharide units are linked to form a disaccharide by formation of an ether. Chemistry 2019-02-14T00:00:00Z Carbohydrates are classified into three subtypes: monosaccharides, disaccharides, and polysaccharides. Biology for AP Courses 2022-06-09T00:00:00Z Figure 2.19 Three Important Disaccharides All three important disaccharides form by dehydration synthesis. Anatomy and Physiology 2013-06-19T00:00:00Z For example, table sugar, honey, corn syrup, maple syrup, brown sugar and molasses contain easily digested disaccharides and no fiber, so they are fast carbs. Some carbs are ‘fast’ while others are ‘slow.’ Here’s what that means and why it matters 2021-06-07T04:00:00Z Carbohydrates are classified as monosaccharides, disaccharides, and polysaccharides, depending on the number of monomers in the molecule. Concepts of Biology 2013-04-25T00:00:00Z There are also strictly monosaccharide sugars like fructose, so a sugar can be either a monosaccharide or a disaccharide. As Soda Taxes Gain Wider Acceptance, Your Bottle May Be Next 2016-11-26T05:00:00Z Maltose, or malt sugar, is a disaccharide formed by a dehydration reaction between two glucose molecules. Biology for AP Courses 2022-06-09T00:00:00Z If the disaccharide maltose is formed from two glucose monosaccharides, which are hexose sugars, how many atoms of carbon, hydrogen, and oxygen does maltose contain and why? Anatomy and Physiology 2013-06-19T00:00:00Z First off, lactose is a disaccharide, meaning it's a sugar made of two simple sugar molecules – glucose and galactose. The Lowdown on Lactose Intolerance in Babies and Children 2016-07-27T04:00:00Z Sucrose is a disaccharide made from glucose and fructose bonded together. Concepts of Biology 2013-04-25T00:00:00Z Sugar is a disaccharide that ends up being two different monosaccharides in your gut. As Soda Taxes Gain Wider Acceptance, Your Bottle May Be Next 2016-11-26T05:00:00Z Bile contains bile salts which emulsify lipids while the pancreas produces enzymes that catabolize starches, disaccharides, proteins, and fats. Biology for AP Courses 2022-06-09T00:00:00Z The monosaccharides combine with the transport proteins immediately after the disaccharides are broken down. Anatomy and Physiology 2013-06-19T00:00:00Z Free sugars include monosaccharides and disaccharides that are added to foods by manufacturers, cooks or consumers, and sugars naturally present in honey, syrups, fruit juices and fruit concentrates. WHO cuts sugar intake advice to 5 percent of daily energy 2014-03-05T15:13:50Z It also contains an enzyme called salivary amylase that begins the process of converting starches in the food into a disaccharide called maltose. Concepts of Biology 2013-04-25T00:00:00Z Table sugar, or sucrose, is a disaccharide — one glucose and one fructose molecule bonded together. How carbohydrates work 2011-05-02T19:32:04Z The salivary enzyme amylase begins the breakdown of food starches into maltose, a disaccharide. Biology for AP Courses 2022-06-09T00:00:00Z In table sugar, the molecules are chemically bonded, forming a disaccharide that is broken apart inside the body. In Worries About Sweeteners, Think of All Sugars 2010-09-20T21:56:00Z The only disaccharides which occur as such in plants are of this type. The Chemistry of Plant Life Pancreatic juices contain several digestive enzymes that break down starches, disaccharides, proteins, and fats. Concepts of Biology 2013-04-25T00:00:00Z This sugar belongs to the disaccharide group, and is, in the majority of cases, readily digested by even the most delicate digestive apparatus. Dietetics for Nurses Pancreatic juices also contain amylase, which continues the breakdown of starch and glycogen into maltose, a disaccharide. Biology for AP Courses 2022-06-09T00:00:00Z Monosaccharides are linked by glycosidic bonds that are formed as a result of dehydration reactions, forming disaccharides and polysaccharides with the elimination of a water molecule for each bond formed. Biology for AP Courses 2022-06-09T00:00:00Z Cellobiose is a disaccharide which results from the hydrolysis of cellulose. The Chemistry of Plant Life Glucose, galactose, and fructose are common monosaccharides, whereas common disaccharides include lactose, maltose, and sucrose. Biology for AP Courses 2022-06-09T00:00:00Z However, lactose, being a disaccharide, could not diffuse through the dialysis bag. Biology for AP Courses 2022-06-09T00:00:00Z Glucose, galactose, and fructose are common isomeric monosaccharides, whereas sucrose or table sugar is a disaccharide. Biology for AP Courses 2022-06-09T00:00:00Z Saliva also contains an enzyme called salivary amylase that begins the process of converting starches in the food into a disaccharide called maltose. Biology for AP Courses 2022-06-09T00:00:00Z When completely hydrolyzed, they yield three molecules of monosaccharides; when partially hydrolyzed, one each of a disaccharide and a monosaccharide. The Chemistry of Plant Life Other disaccharides, such as sucrose and lactose are broken down by sucrase and lactase, respectively. Biology for AP Courses 2022-06-09T00:00:00Z Sucrose is a disaccharide with a molecule of glucose and a molecule of fructose bonded together with a glycosidic linkage. Biology for AP Courses 2022-06-09T00:00:00Z Lactose is a disaccharide consisting of the monomers glucose and galactose. Biology for AP Courses 2022-06-09T00:00:00Z Figure 3.2 In the dehydration synthesis reaction depicted above, two molecules of glucose are linked together to form the disaccharide maltose. Biology for AP Courses 2022-06-09T00:00:00Z When hydrolyzed, it yields one molecule of fructose and one of turanose, a disaccharide containing fructose and glucose linked together in a slightly different way than they are in sucrose. The Chemistry of Plant Life Figure 3.3 In the hydrolysis reaction shown here, the disaccharide maltose is broken down to form two glucose monomers with the addition of a water molecule. Biology for AP Courses 2022-06-09T00:00:00Z Consisting of carbon, hydrogen, and oxygen in the ratio CH2O or carbon hydrated with water, carbohydrates are classified as monosaccharides, disaccharides, and polysaccharides depending on the number of monomers in the macromolecule. Biology for AP Courses 2022-06-09T00:00:00Z The most common disaccharide is sucrose, or table sugar, which is composed of the monomers glucose and fructose. Biology for AP Courses 2022-06-09T00:00:00Z Carbohydrates are classified as monosaccharides, disaccharides, and polysaccharides depending on the number of monomers in the molecule. Biology for AP Courses 2022-06-09T00:00:00Z Recent studies indicate that the two sugar molecules are separately united to the other constituents, rather than united with each other in the disaccharide relationship. The Chemistry of Plant Life Examples of each of these three types of linkage are found among the common disaccharides, as will be pointed out below. The Chemistry of Plant Life In other words, it is never possible to break off a disaccharide sugar from the molecule, either by the action of prunase alone, or by means of any other hydrolytic agent. The Chemistry of Plant Life |
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