Chapter 25 - Carbohydrates

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23 Terms

1
Rayon
________ is created from cellulose that has been chemically changed and regenerated.
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2
Starch
________ may be divided into two parts known as amylose and amylopectin.
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3
carbon atoms
Tri,- tetra,- penta,- hexa,- and other prefixes are used to denote three, four, five, and six ________, respectively.
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4
Carbohydrates
________ are the most common organic compounds on the planet.
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5
Sucrose
________ is a disaccharide composed of d- glucose and d- fructose linked by an a- 1, 2- glycosidic linkage.
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6
skeletal polysaccharide
Cellulose, a plant's ________, is a linear polymer of d- glucopyranose united by b- 1, 4.
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7
extensive hydrogen
The ribbon- like shape of the individual chains, which fit together flawlessly through ________ bonding to generate exceptionally strong structures, accounts for cellulose's strength.
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8
heterocyclic ring
When an amine, usually as part of a(n) ________, makes a connection with the anomeric carbon, an N- glycoside is formed.
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9
alditol
A(n) ________ is a polyhydroxy molecule created by reducing a monosaccharide's carbonyl group to a hydroxyl group.
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10
structural reinforcement
They are necessary for all forms of life because they serve as energy storage (glucose, starch, and glycogen), ________ (cellulose), and genetic information storage as components of nucleic acids (DNA and RNA)
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11
point of reference
The ________ in a monosaccharide is the chiral center furthest away from the carbonyl group.
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12
Monosaccharides
________ are the monomers from which bigger carbohydrates are produced and have molecular formulae of CnH2nOn (3 n 8)
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13
carbon atoms of chiral centers
The ________ are not identified in a Fischer projection.
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14
OH group
________ in the Fischer projection is on the right side of the carbon atom.
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15
Amylopectin
________ is a highly branched polymer of d- glucopyranose held together by a- 1, 4- glycosidic linkages and, at branch sites, a- 1, 6- glycosidic bonds.
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16
term Mutarotation
The ________ refers to the change in specific rotation that accompanies the interconversion of a- and b- anomers in aqueous solution.
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17
Lactose
________ is a disaccharide composed of d- galactose connected to d- glucose by a b- 1, 4- glycosidic bond, whereas maltose is composed of two molecules of d- glucose united by an a- 1, 4- glycosidic bond.
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18
Amylose
________ is a linear polymer composed of up to 4000 d- glucopyranose units linked by a- 1, 4- glycosidic linkages.
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19
Horizontal lines
________ represent groups that project above the plane of the paper, while vertical lines show groups that project below the plane of the paper.
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20
Cyclic monosaccharide structures
________ are frequently drawn as Haworth projections, with the five- membered or six- membered cyclic hemiacetal drawn as The anomeric carbon atom is on the right, with the hemiacetal oxygen atom in the rear.
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21
l monosaccharide
A(n) ________ has the same structure around its penultimate carbon atom as l- glyceraldehyde, with the.
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22
cyclic hemiacetal structure
A(n) ________ is in equilibrium with the open- chain monosaccharides.
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23
monosaccharide units
A disaccharide is composed of two ________ connected by a glycosidic bond.
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