3928579
Pregunta 1
Pregunta
Monosaccharides are the simplest carbohydrates
Respuesta
- True
- False
Pregunta 2
Pregunta
A key component of cartilage are molecules called
Respuesta
-
glycosaminoglycans
-
glycans
-
glycogylcans
-
aminoglycans
Pregunta 3
Pregunta
The smallest monosaccharides are composed of [blank_start]three[blank_end] carbons
Respuesta
-
three
Pregunta 4
Pregunta
glycosaminoglycans , large polymers made up of many repeats of dimers
Respuesta
- True
- False
Pregunta 5
Pregunta
Name six common monosaccharides
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-
D-Ribose
-
D-deoxyribose
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D-oxy
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D-glucose
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D-mannose
-
D-galactose
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D-lactose
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D-fructose
Pregunta 6
Pregunta
Glucose is a reducing sugar
Respuesta
- True
- False
Pregunta 7
Pregunta
Glucose can react with hemoglobin, forming
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-
Monossacharides
-
Glycosylated hemoglobin A1c
-
Carbohydrates
Pregunta 8
Pregunta
Hemoglobin A1c allows one to
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-
monitor the long term control of blood glucose levels in diabetics
-
monitor the short term control of blood glucose levels in diabetics
Pregunta 9
Pregunta
Monossacharides are joined to [blank_start]alcohols[blank_end] and [blank_start]amines[blank_end] through [blank_start]glycosidic[blank_end] bonds
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-
alcohols
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acids
-
amines
-
amino
-
glycosidic
-
glycogen
Pregunta 10
Pregunta
What are key intermediates in energy generation and biosynthesis
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Phosphorylates sugars
-
Monossacharides
-
Carbohydrates
Pregunta 11
Pregunta
Phosphorylation is
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a common modification of carbohydrates
-
a common modification of sugars
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makes the sugars anionic and prevents them from leaving the cell
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facilitates the metabolism of sugars
Pregunta 12
Pregunta
What contains two or more monosaccharies linked by O-glycosidic bonds
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-
Oligosaccharides
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sucrose
-
lactose
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disaccharides
Pregunta 13
Pregunta
What are common disaccharides
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-
Sucrose
-
lactose
-
maltose
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glucose
Pregunta 14
Pregunta
Sucrose is obtained from sugar cane and sugar beets and is composed of
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-
of glucose linked to fructose
-
linked to a glucose by a β-1-4-linkage
-
a degradation product of large oligosaccharides
Pregunta 15
Pregunta
The linkage is α for glucose and β for fructose.
Respuesta
- True
- False
Pregunta 16
Pregunta
[blank_start]Sucrose[blank_end] is cleaved by sucrase
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-
Sucrose
Pregunta 17
Pregunta
Lactose is the disaccharide of milk that consists of
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a galactose linked to a glucose by a β-1-4-linkage
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a degradation product of large oligosaccharides
-
the linkage is α for glucose
Pregunta 18
Pregunta
lactase cleaves [blank_start]lactose[blank_end]
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-
lactose
Pregunta 19
Pregunta
Maltose
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a degradation product of large oligosaccharides
-
disaccharidee
-
composed of 2 glucose molecules linked by an α-1-4-linkage.
-
disaccharide of milk
Pregunta 20
Pregunta
[blank_start]Maltose[blank_end] is hydrolyzed by maltase
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-
Maltose
Pregunta 21
Pregunta
polysaccharides are
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small polyermic oligosaccharides
-
large polymeric oligosaccharides
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Disaccharides
Pregunta 22
Pregunta
If all of the monosaccharides in the polysaccharide are the same, the polysaccharide is called a [blank_start]homopolymer[blank_end]
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-
homopolymer
-
hyperpolymer
Pregunta 23
Pregunta
The polysaccharide glycogen is the storage form of glucose in plant cells
Respuesta
- True
- False
Pregunta 24
Pregunta
Most glucose units in glycogen are lined by
Respuesta
-
α-1,4-glycosidic bonds
-
branches formed by α-1,6-glycosidic bonds every 10 glucose units
-
branches formed by α-1,6-glycosidic bonds every 15 glucose units
-
α-1,2-glycosidic bonds
Pregunta 25
Pregunta
In plants, glucose is stored as starch
Respuesta
- True
- False
Pregunta 26
Pregunta
Two forms of glucose are [blank_start]amylose[blank_end] and [blank_start]amylopectin[blank_end]
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-
amylose
-
amylopectin
Pregunta 27
Pregunta
Amylose is a
Respuesta
-
linear polymer of glucose
-
branched polymer of glucose
-
linked by α-1,4-glycosidic bonds.
-
, with an α-1,6-glycosidic bond for every 30 α-1,4-glycosidic bonds.
Pregunta 28
Pregunta
Amylopectin is
Respuesta
-
branched polymer of glucose
-
linear polymer of glucose
-
linked by α-1,4-glycosidic bonds.
-
with an α-1,6-glycosidic bond for every 30 α-1,4-glycosidic bonds.
Pregunta 29
Pregunta
cellulose is a structural component of plants made of chains of glucose
Respuesta
- True
- False
Pregunta 30
Pregunta
Mammals cannot digest cellulose and other plant fibers, soluble fibers, such as polygalacturonic acid, aid in digestion
Respuesta
- True
- False
Pregunta 31
Pregunta
Carbohydrates can be linked to proteins to form [blank_start]glycoproteins[blank_end]
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-
glycoproteins
Pregunta 32
Pregunta
Glycoproteins
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largest component by weight
-
Play variety of roles, including membrane proteins
-
Smallest component by weight
Pregunta 33
Pregunta
Erythropoietin
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glycoprotein
-
40 percent carbohydrate by weight
-
secreted into the blood by the kidney to stimulate production of red blood cells
-
secreted into the blood by the kidney to stimulate production of white blood cells
Pregunta 34
Pregunta
glycosylation of erythropoietin enhances the stability of the protein in the blood
Respuesta
- True
- False
Pregunta 35
Pregunta
What are the three main classes of glycoproteins
Respuesta
-
proteoglycans
-
Mucins
-
Mucoproteins
-
Amino proteins
Pregunta 36
Pregunta
Proteoglycans
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attached to a particular type of polysaccharide called glycosaminoglycan
-
By weight, mainly carbohydrate
-
By weight, mainly glucose
-
play structural roles
-
act as lubricants
Pregunta 37
Pregunta
Proteoglycans are proteins attached to glycosaminoglycans, which make up 95% of the proteoglycan by weight.
Respuesta
- True
- False
Pregunta 38
Pregunta
Glycosaminoglycans are composed of
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repeating units of a disaccharide, one of which is a derivative of an amino sugar and one of which carries a negative charge, either as a carboxylate or sulfate.
-
repeating units of a monosaccharide, one of which is a derivative of an amino sugar and one of which carries a negative charge, either as a carboxylate or sulfate.
-
repeating units of a disaccharide, one of which is a derivative of an amino sugar and one of which carries a positive charge, either as a carboxylate or sulfate.
Pregunta 39
Pregunta
Proteoglycans are important components of cartilage
Respuesta
- True
- False
Pregunta 40
Pregunta
Cartilage is composed of the
Respuesta
-
proteoglycan aggrecan and collagen
-
glycosaminoglycans
-
chitin
Pregunta 41
Pregunta
The glycosaminoglycan component of aggrecan cushions joints by releasing water on impact, and then rebinding water.
Respuesta
- True
- False
Pregunta 42
Pregunta
Chitin
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glycosaminoglycan
-
found in exoskeleton of insects
-
one of the most abundant carbohydrates in the world
-
Mucins
Pregunta 43
Pregunta
Mucopolysaccharidoses, such as Hurler disease, are
Respuesta
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pathological conditions that result from the inability to degrade proteoglycans
-
pathological conditions that result from the inability to degrade glycosaminoglycan
-
pathological conditions that result from the inability to degrade glycogen
Pregunta 44
Pregunta
Mucins or mucoproteins like proteoglycans are predominately carbohydrate
Respuesta
- True
- False
Pregunta 45
Pregunta
Mucins or mucoproteins
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attach to the carbohydrate by N-acetylgalactosamine
-
Often lubricants
-
adhere to epithelial cells, acting a protective barrier
-
Non lubricants
Pregunta 46
Pregunta
Blood groups are based off what patterns
Respuesta
-
protein glycosylation
-
Mucoproteins
-
Glycosaminoglycan
Pregunta 47
Pregunta
The human ABO blood groups reflect the specificity of
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glycosyltransferases
-
proteoglycans
-
glycosaminoglycan
Pregunta 48
Pregunta
All of the blood groups share the oligosaccharide foundation called A
Respuesta
- True
- False
Pregunta 49
Pregunta
In type A blood, N-acetylgalactosamine is
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-
added to the O by a specific glycosyltransferase.
-
added to the A by a specific glycosyltransferase.
-
added to the B by a specific glycosyltransferase.
Pregunta 50
Pregunta
In type B blood, galactose is added by another transferase
Respuesta
- True
- False
Pregunta 51
Pregunta
The blood type O, sometimes called H, lacks both the enzymes required to modify the foundation.
Respuesta
- True
- False
Pregunta 52
Pregunta
[blank_start]Lectins[blank_end] are specific carbohydrate binding proteins
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-
Lectins
Pregunta 53
Pregunta
Influenza virus binds to sialic acid residues
Respuesta
- True
- False
Pregunta 54
Pregunta
Some viruses gain entry into cells by
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-
first binding to carbohydrates on the cell surface.
-
first binding to sugars on the cell surface.
-
first binding to proteoglycans on the cell surface.
Pregunta 55
Pregunta
The influenza virus binds to
Respuesta
-
oligosaccharides composed of sialic acid and galactose.
-
disaccharides composed of sialic acid and galactose.
-
oligosaccharides composed of sialic acid and fructose.
-
disaccharides composed of sialic acid and fructose.
Pregunta 56
Pregunta
What viral protein is responsible for carbohydrate binding
Respuesta
-
Hemoglobin
-
Hemagglutinin
-
glycoprotein
-
proteoglycan
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