BT404 Food Biotechnology Quiz-07 For Mid Term And Final Term Virtual University Of Pakistan

Topic-Peptide bonds

61. The peptide bond is the _________ between amino acids that links them to form peptides and polypeptides

1. Covalent bond
2. Hydrogen bond
3. Carbon-Carbon bond
4. None of these

62. A ____________ is formed between the a-carboxyl group and the a-amino group of two amino acids by a condensation

1. Carbon bond
2. Hydrogen bond
3. Peptide bond
4. Both a & c

63. Peptides are compounds formed by linking small numbers of ________

1. Proteins
2. Amino acids
3. Carbohydrates
4. Lipids

64. A polypeptide is a chain of __________ amino acid residues

1. 2-25
2. 25-50
3. 50-100
4. 100-125

65. A protein is a polypeptide chain of _______ amino acid residues

1. 100+
2. 50+
3. 40+
4. 150

Topic- Molecular Structure Of Protein

66. The__________ of a protein is simply the sequence of amino acids listed from the N-terminal amino acids

1. Tertiary structure
2. Secondary structure
3. Primary structure
4. None of these

67. There are more than a ________ possible sequences of the 20 amino acids

1. Thousand
2. Million
3. Billion
4. None of these

68. The ________ of a protein describes the arrangement of the protein backbone due to hydrogen bonding between its amino acid residues

1. Primary structure
2. Secondary structure
3. Tertiary structure
4. None of these

69. __________ can occur between an amide hydrogen atom and a lone pair of electrons on a carbonyl oxygen atom.

1. Hydrogen bonding
2. Covalent bonding
3. Both a & b
4. None of these

70. The protein folds into a ________ dimensional conformation

1. Two
2. Three
3. Four
4. None of these