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Essential Biochemistry - Carbohydrate Chemistry (Section 4)

1
Which of the following tests is used for identifying ketoses?
Answer
(B)
Seliwanoff's test
2
Which of the following are components of sucrose?
Answer
A
B
3
Which of the following is a characteristic of fructose?
Answer
(C)
Hexose
4
What is the difference between starch and cellulose?
Answer
(B)
They have different glycosidic linkages.
5
Which of the following is NOT a characteristic of disaccharides?
Answer
(B)
They are always reducing sugars
6
Which of the following is the main component of the cell walls of plants?
Answer
(C)
Cellulose
7
Which of the following is an aldose?
Answer
(B)
Glucose
8
Which of the following is a disaccharide?
Answer
(C)
Lactose
9
What is the term for a carbohydrate with three monosaccharide units?
Answer
(C)
Trisaccharide
10
What is the primary function of starch in plants?
Answer
(B)
Energy storage
11
Which of the following is NOT a characteristic of monosaccharides?
Answer
(D)
They contain peptide bonds
12
What structural feature do glycoproteins have?
Answer
(B)
Oligosaccharides attached to proteins
13
Which of the following is a key characteristic that distinguishes a reducing sugar from a non-reducing sugar?
Answer
(A)
The presence of a free aldehyde or ketone group
14
Which of the following is a type of isomerism exhibited by glucose?
Answer
(B)
Stereoisomerism
15
What is the disaccharide unit of Heparin?
Answer
(B)
Glucosamine-glucuronic acid or iduronic acid
16
Which of the following are components of lactose?
Answer
A
C
17
Which of the following is a type of isomerism exhibited by monosaccharides?
Answer
(C)
Optical isomerism
18
What is the characteristic functional group of a ketose sugar?
Answer
(B)
Ketone
19
Which of the following characteristics are associated with mutarotation?
Answer
A
B
C
20
Which of the following is NOT a function of polysaccharides?
Answer
(C)
Catalysis of chemical reactions
21
Which of the following are true about starch?
Answer
A
B
C
22
What is the role of glycosaminoglycans in cartilage?
Answer
(D)
Both b and c
23
Which of the following is/are functions of glycoproteins?
Answer
A
B
C
24
What is the role of the anomeric carbon in a monosaccharide?
Answer
(B)
It determines the alpha or beta configuration
25
Sucrose is composed of:
Answer
(B)
Glucose + Fructose
26
What is the process called where a glycosidic bond is broken?
Answer
(A)
Hydrolysis
27
Which of the following is a major component of the extracellular matrix?
Answer
(D)
Both b and c
28
Which of the following are examples of hexose sugars?
Answer
A
B
C
29
What is the chemical formula of glucose?
Answer
(A)
C6H12O6
30
What is the name of the glycosidic bond that links two glucose molecules in maltose?
Answer
(A)
alpha 1,4
31
Glycosaminoglycans are:
Answer
(C)
Heteroglycans
32
Which type of linkage is characteristic of branching in glycogen?
Answer
(C)
alpha 1-6
33
What type of reactions can be performed on the aldehyde group present in reducing sugars?
Answer
A
B
34
Which of the following tests can be used to determine if a sugar is a reducing sugar?
Answer
A
C
35
What type of linkage is characteristic of branching in glycogen?
Answer
(C)
alpha 1,6
36
Which of the following are functions of GAGs?
Answer
A
B
D
37
What is the main function of cellulose?
Answer
(B)
Structural component of plant cell walls
38
All the following are composed exclusively of: glucose, except:
Answer
(C)
Lactose
39
What is the functional group present in an aldehyde sugar?
Answer
(C)
Aldehyde
40
What is the role of mutarotation?
Answer
(A)
The interconversion of alpha and beta anomers
41
What is the primary role of starch in plants?
Answer
(A)
Energy storage
42
Which of the following statements is true for fructose?
Answer
(C)
It is involved in the formation of sucrose
43
What does 'alpha' refer to in the context of glucose anomers?
Answer
(A)
The position of the -OH group on C1 below the ring
44
What is the repeating disaccharide unit of keratan sulfate?
Answer
(C)
N-acetylglucosamine-galactose
45
Which of the following is a pentose sugar?
Answer
(C)
Ribose
46
Which of the following is a non-reducing sugar?
Answer
(C)
Sucrose
47
Which of the following is an example of a ketose sugar?
Answer
(B)
Fructose
48
Which of the following are components of GAGs?
Answer
A
B
C
49
Which disaccharide is broken down into two glucose molecules?
Answer
(C)
Maltose
50
Which of the following is a characteristic of a saturated fatty acid?
Answer
(B)
Is a solid at room temperature