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Home
Biomolecules Test - 18
Biomolecules Test - 18
Result
Biomolecules Test - 18
/
Score
-
Rank
Time Taken:
-
Question
1/10
4 / -1
Which of the following describes the overall three dimensional folding of a polypeptide?
Correct
Wrong
Skipped
A
Primary structure
Correct
Wrong
Skipped
B
Secondary structure
Correct
Wrong
Skipped
C
Tertiary structure
Correct
Wrong
Skipped
D
Quaternary structure
Question
2/10
4 / -1
A compound with molecular mass 180 is acylated with CH
3
COCl to get a compound with molecular mass 390. The number of amino groups present per molecule of the former compound is
Correct
Wrong
Skipped
A
2
Correct
Wrong
Skipped
B
5
Correct
Wrong
Skipped
C
4
Correct
Wrong
Skipped
D
6
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Solutions
Question
3/10
4 / -1
Which one of the following statements is correct?
Correct
Wrong
Skipped
A
All amino acids except lysine are optically active
Correct
Wrong
Skipped
B
All amino acids are optically active
Correct
Wrong
Skipped
C
All amino acids except glycine are optically active
Correct
Wrong
Skipped
D
All amino acids except glutamic acids are optically active.
Question
4/10
4 / -1
A decapeptide (mol. wt. 796) on complete hydrolysis gives glycine (mol. wt. 75), alanine and phenylalanine. Glycine contributes 47% to the total weight of the hydrolysed products. The number of glycine units present in the decapeptide is
Correct
Wrong
Skipped
A
3
Correct
Wrong
Skipped
B
4
Correct
Wrong
Skipped
C
5
Correct
Wrong
Skipped
D
6
Question
5/10
4 / -1
Which one of the following does not correctly match with each other?
Correct
Wrong
Skipped
A
Silk-polyamide
Correct
Wrong
Skipped
B
Lipase-enzyme
Correct
Wrong
Skipped
C
Butter-fat
Correct
Wrong
Skipped
D
Oxytocin-enzyme
Question
6/10
4 / -1
Which of the following is present in animals like cow, buffaloes etc. to digest compound like paper, cloth etc?
Correct
Wrong
Skipped
A
Urease
Correct
Wrong
Skipped
B
Cellulase
Correct
Wrong
Skipped
C
Silicones
Correct
Wrong
Skipped
D
Sucrose
Question
7/10
4 / -1
The total number of basic groups in the following form of lysine is
Correct
Wrong
Skipped
A
1
Correct
Wrong
Skipped
B
2
Correct
Wrong
Skipped
C
3
Correct
Wrong
Skipped
D
4
Question
8/10
4 / -1
The enzyme pepsin hydrolyses
Correct
Wrong
Skipped
A
proteins to amino acids
Correct
Wrong
Skipped
B
fats to fatty acids
Correct
Wrong
Skipped
C
glucose to ethyl alcohol
Correct
Wrong
Skipped
D
poloysaccharides to monosaccharides
Question
9/10
4 / -1
Give the pOH range for the isoelectric point of the amphoteric ion of an amino acid
Correct
Wrong
Skipped
A
5.5 to 6.3
Correct
Wrong
Skipped
B
2.5 to 5.0
Correct
Wrong
Skipped
C
7.7 to 8.5
Correct
Wrong
Skipped
D
9.0 to 10.7
Question
10/10
4 / -1
Denaturation of proteins leads to the loss of its biological activity by
Correct
Wrong
Skipped
A
formation of amino acids
Correct
Wrong
Skipped
B
loss of primary structure
Correct
Wrong
Skipped
C
loss of both primary and secondary structures
Correct
Wrong
Skipped
D
loss of both secondary and tertiary stuctures
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
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