Concept explainers
(a)
Interpretation: The validation of the given statement has to be stated.
Concept introduction: Heparin is an acidic polysaccharide. An acidic polysaccharide has disaccharide as its repeating unit. One of the repeating disaccharide component is an amino sugar and one or both of the disaccharide components have a negative charge either due to the sulphate group or carboxyl group.
(b)
Interpretation: The validation of the given statement has to be stated.
Concept introduction: Heparin is an acidic polysaccharide. An acidic polysaccharide has disaccharide as its repeating unit. One of the repeating disaccharide component is an amino sugar and one or both of the disaccharide components have a negative charge either due to the sulphate group or carboxyl group.
(c)
Interpretation: The validation of the given statement has to be stated.
Concept introduction: Heparin is an acidic polysaccharide. An acidic polysaccharide has disaccharide as its repeating unit. One of the repeating disaccharide component is an amino sugar and one or both of the disaccharide components have a negative charge either due to the sulphate group or carboxyl group.
(d)
Interpretation: The validation of the given statement has to be stated.
Concept introduction: Heparin is an acidic polysaccharide. An acidic polysaccharide has disaccharide as its repeating unit. One of the repeating disaccharide component is an amino sugar and one or both of the disaccharide components have a negative charge either due to the sulphate group or carboxyl group.
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Chapter 18 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Listed below are descriptions that may belong to amylose, amylopectin, both, or it may not belong to either. Write A if it describes amylose, B if it describes amylopectin, AB if the statement applies to both, or O if it doesn’t apply to either. 1. Its monosaccharides are bound by at least one α-1,4-glycosidic bond. 2. It contains α-1,6-glycosidic bonds. 3. It can be broken down by the enzyme α-amylase. 4. A polysaccharide made up of gulose. 5. It can form a double helix.arrow_forwardDesferal (Desferrioxamine B) is a drug given to thalassaemic patients who are being treated by blood transfusion and who suffer from iron overload. Desferal contains which of the following iron binding groups: Select one: a. Carboxylic acids. b. Hydroxamates. c. Carboxylates. d. Hydroxamic acids. e. A mixture of carboxylates and hydroxamates. ----- is it hydroxamates or hydroxamic acids?? and what is the difference between them?arrow_forwardConsider olive oil, an oil with a high percentage of fat derived from oleic acid (otherwise known as cis[18:1] fatty acid). a, Explain why such a structure may allow olive oil to be one of the "healthier" oils? b, why such a structure may allow olive oil to be a liquid at room temperature, while butter and lard are solid at room temperature? c, why such a structure may cause olive oil to be prone to oxidative damage upon exposure to air and heat?arrow_forward
- Match the following: A. A triglyceride on hydrolysis gives, Fatty 1. Sphingosine +Carbohydrate 2. A non- B. A wax consists of, saponifiable lipid C. Phosphoglyceride consists of, Fatty acid 3. Sphingosine + Phosphoric acid+ Carbohydrate D. A sphingomyelin consists of, membered 4. A set of 3 6- And a 5-membered ring Fused together. 5. Saponifiable E. A glycolipid consists of, lipid. F. A steroid is a special type of ring system Consists of 6. Fatty acids and long Chain alcohols 7. Glycerol, G. A prostaglandin is an example of, Fatty acids+ Phosphoric acids H. Triglycerides, phospholipids and glycolarrow_forwardIndicate whether each of the following statements about the structural characteristics of monosaccharides is true or false. a. Both an aldehyde group and a ketone group are always present. b. An aldehyde group and at least two hydroxyl groups must be present.arrow_forwardIndicate whether each of the following statements about the structural characteristics of monosaccharides is true or false. a. An aldehyde group or a ketone group, but not both, is always present. b. A hydroxyl group must be present on each carbon atom.arrow_forward
- Describe any two heteropolysaccharides in terms of: a. The types of monosaccharides involved b. types of glycosidic linkages, and c. possible hydrolysatesarrow_forwardHydrolysis of a mixture of glycerophospholipids may yield the following, EXCEPT: A. Galactose B. Choline C. Serine amino acid D. Phosphatearrow_forwardDescribe the structural similarities and differences of the following pairs. Identify which of these is a structural isomer, and how to identify structural isomers. a. Glucose and Mannose b. Galactose and Fructose c. Ribulose and Xylulose d. ribose and glucosearrow_forward
- Indicate whether the following pairs of monosaccharides are aldoses or ketoses. a. D-altrose & D-xylose b. D-arabinose & D-glyceraldehyde c. D-erythrulose & D-psicose d. D-talose & D-gulose e. dihydroxyacetone & D-tagatose f. D-idose & D-threosearrow_forwardWhich of the following statements about monosaccharides is true? A. Monosaccharides are classified according to the location of their carbonyl group. B. The penultimate chiral center of a monosaccharide determines its handedness. C. If the carbonyl group of a monosaccharide is terminal then it will react positively with Barfoed's and Seliwanoff's tests. D. The cyclization of monosaccharides results to the formation of a cyclic ether. E. The existence of anomers is due to the mutarotation along the reference carbonarrow_forwardWhich of the following polysaccharides cannot be cleaved with ?α-amylase, a glycosidase that catalyzes the hydrolysis of ?α 1-4 glycosidic bonds. Select all that apply a. Amylopectin b. Glycogen c. Chitin d. Cellulose e. Amylosearrow_forward
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