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Hassan
1.The first protein sequenced by Frederick Sanger is
A. Haemoglobin
B. myoglobin
C. insulin
D. Haemoglobin
2.A dipeptide has
A. 2 amino acids and 1 peptide bond
B. 2 amino acids and 2 peptide bonds
C. 2 amino acids and 3 peptide bonds
D. 2 amino acids and 1 peptide bond
3.The most common secondary structure is
A. α-helix
B. β-pleated sheet
C. β-pleated sheet parallel
D. α-helix
4.Myoglobin is a
A. protein with primary structure
B. protein with secondary structure
C. protein with tertiary structure
D. protein with primary structure
5.Fibrous protein such as silk fibroin consists of polypeptide chains arranged in
A. α-helix
B. β-pleated sheet
C. β-helix
D. α-helix
6. α-helix has
A. 3.4 amino acid residues/turn
B. 3.6 amino acid residues/turn
C. 3.8 amino acid residues/turn
D. 3.4 amino acid residues/turn
7.Tertiary structure is maintained by
A. peptide bond
B. hydrogen bond
C. di-sulphide bond
D. peptide bond
8.Haemoglobin has
A. primary structure
B. secondary structure
C. tertiary structure
D. primary structure
9. Disulphide bonds are formed between
A. cysteine residues that are close together
B. cystine residues that are close together
C. proline residues that are close together
D. cysteine residues that are close together
10.The 3-D structure of protein can be determined by
A. Nuclear magnetic resonance
B. X-ray crystallography
C. both a and b
D. Nuclear magnetic resonance
11.Find opposite meaning of ORIENT :
A. Disorder
B. Fact
C. Conform
D. Disorder
12.Find the word just opposite of TIMID :
A. Gentle
B. Tired
C. Brave
D. Gentle
13.Find antonym of EXODUS :
A. Departure
B. Typical
C. Stay
D. Departure
14.Find the word that bears the farthest meaning of SINISTER :
A. Good
B. Evil
C. Long
D. Good
15.Find the word just opposite of STERILE :
A. Short
B. Wild
C. Common
D. Short
16.Find most opposite word of TENET :
A. Respected
B. Disrespected
C. Assumption
D. Respected
17.Find opposite meaning of BAROQUE :
A. Abandon
B. Empty
C. Plain
D. Abandon
18.. The elements present in the proteins are
A. Carbon, hydrogen, nitrogen, and oxygen.
B. Carbon, hydrogen, and oxygen.
C. Hydrogen, nitrogen, and oxygen.
D. Carbon, hydrogen, nitrogen, and oxygen.
19.Proteins are made up of
A. Lipids
B. Amino acids
C. Fatty acids
D. Lipids
20. How many types of amino acids are commonly found in proteins?
A. 25
B. 20
C. 15
D. 25
21.The basic structure of amino acids consists of a central carbon atom also known as alpha carbon bonded to
A. Amino group(NH2), Hydrogen
B. Amino group, Carboxylic acid(COOH), and a Hydrogen atom
C. Amino group and Carboxyl group
D. Amino group(NH2), Hydrogen
22.Find antonym of FIASCO :
A. Debacle
B. Achievement
C. Limp
D. Debacle
23.Amino acids are joined by
A. Hydrogen bond
B. Peptide bond
C. Ionic bond
D. Hydrogen bond
24. The primary structure of the protein represents
A. linear sequence of amino acids joined by peptide bond
B. The 3-dimensional structure of protein
C. the helical structure of protein
D. linear sequence of amino acids joined by peptide bond
25.Find the word just opposite of ARBITRARY :
A. Appropiate
B. Consistent
C. Superficial
D. Appropiate
26. Which of the following statements about amino acids is correct?
A. Amino acids are classified according to the structures and properties of their side chains.
B. Amino acids in proteins are mainly in the D-configuration.
C. Amino acids are unchanged at neutral pH
D. Amino acids are classified according to the structures and properties of their side chains.
27.Find antonym of AMENDMENT :
A. Correction
B. Polarised
C. Improvement
D. Correction
28.Which type of bonding is responsible for the secondary structure of proteins?
A. Disulfide bridge between cysteine residues.
B. Peptide bonds between amino acids.
C. Hydrogen bonding between the C=O and N-H groups of peptide bonds.
D. Disulfide bridge between cysteine residues.
29.Find opposite meaning of HERESY
A. Agreement
B. Error
C. Mindful
D. Agreement
30.Find the word just opposite of PROVOKE :
A. Insult
B. Anger
C. Encourage
D. Insult
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