41) The ability to tolerate lactose throughout life is most likely to be seen in ______.
Beside above, how do you identify peptide bonds?
A peptide bond is a chemical bond formed between two molecules when one molecule’s carboxyl group interacts with the other molecule’s amino group, releasing a water molecule (H2O). The resulting bond of CO-NH is considered a peptide bond, and an amide is the resulting molecule.
Hereof, what are peptides?
Peptides are short strings of amino acids, typically comprising 2–50 amino acids. Amino acids are also the building blocks of proteins, but proteins contain more. Peptides may be easier for the body to absorb than proteins because they are smaller and more broken down than proteins.
What are the 3 types of carbohydrates?
There are three main types of carbohydrates:
- Sugars. They are also called simple carbohydrates because they are in the most basic form. …
- Starches. They are complex carbohydrates, which are made of lots of simple sugars strung together. …
- Fiber. It is also a complex carbohydrate.
What compounds include glucose and lactose?
Disaccharides
| Disaccharide | Common name | Monosaccharides |
|---|---|---|
| Sucrose | Table sugar | Glucose-fructose |
| Lactose | Milk sugar | Galactose-glucose |
| Maltose | Malt sugar | Glucose-glucose |
| Isomaltose | Glucose-glucose |
What is lactose made of?
lactose, carbohydrate containing one molecule of glucose and one of galactose linked together. Composing about 2 to 8 percent of the milk of all mammals, lactose is sometimes called milk sugar.
What is the condensation reaction of carbohydrates?
A condensation reaction takes place releasing water. This process requires energy. A glycosidic bond forms and holds the two monosaccharide units together. The three most important disaccharides are sucrose, lactose and maltose.
What is the product of glucose fructose → sucrose h2o?
Extracellular sucrose is hydrolyzed to yield glucose and fructose in a reaction catalyzed by the sucrase domain of sucrase-isomaltase (Conklin et al. 1975). In the body, this enzyme is found on the external face of enterocytes in microvilli of the small intestine (Hauri et al.
What name is given to the following reaction glucose glucose → maltose water?
In the dehydration synthesis reaction depicted above, two molecules of glucose are linked together to form the disaccharide maltose. In the process, a water molecule is formed.
What name is given to the reaction that breaks peptide bonds?
Long chain polypeptides can be formed by linking many amino acids to each other via peptide bonds. The amide bond can only be broken by amide hydrolysis, where the bonds are cleaved with the addition of a water molecule. The peptide bonds of proteins are metastable, and will break spontaneously in a slow process.
What name is given to the type of reaction shown below glucose fructose → sucrose water?
Disaccharides: Sucrose is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond. In the process, a water molecule is lost. By convention, the carbon atoms in a monosaccharide are numbered from the terminal carbon closest to the carbonyl group.
What products are formed when lactose is hydrolyzed with water?
The hydrolysis of lactose gives galactose and glucose.
What type of reaction is the following galactose glucose → lactose water?
Galactose is a monosaccharide. When combined with glucose (monosaccharide), through a condensation reaction, the result is a disaccharide called lactose. The hydrolysis of lactose to glucose and galactose is catalyzed by the enzymes lactase and β-galactosidase.
Why is carbohydrate called carbohydrate?
They are called carbohydrates because, at the chemical level, they contain carbon, hydrogen and oxygen. There are three macronutrients: carbohydrates, protein and fats, Smathers said.