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Quiz 4
Mdcat-past-papers - BUMHS Quiz
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Board: BUMHS |
61. Which fatty acid would have the highest melting point?
Oleic acid
Palmitic acid
Lauric acid
Stearic acid
62. Lipid that protect plants from water loss are :-
Phospholipid
waxes
Terpenoids
Triglyceride
63. Transcription is the process in which an RNA copy of the DNA sequence and coding the gene is produced with the help of an enzyme called:
DNA polymerase
RNA polymerase
DNA transcriptase
RNA transcriptase
64. The type of lipids which do not contain fatty acids are:
Phospholipids
Waxes
Steroids
Acylglycerol
65. Lipids, which do not contain fatty acid are:
Neutral lipid
Steroids
Phosphatidic acid
Waxes
66. The number and sequence of amino acids along a polypeptide chain is called _ structure of a protein:
Quaternary
Tertiary
Primary
Secondary
67. Proteins are the main ------- of the cell?
Physiological components
Functional components
Structural components
Biological components
68. forms almost three- fourth of the body by weight:
Water
Carbohydrates
Proteins
Lipids
69. Which function is not performed by proteins?
Providing structural support to cell
catalyzing biochemical reactions
transporting materials across cell membran
providing insulation against heat loss
70. Fibrous proteins "Do NOT" take part in:
Blood clotting
formation of nails
muscle contraction
oxygen transport
71. Sickle cell anaemia results from?
Reduction in oxygen carrying capacity of haemoglobin
Linkage between the polypeptide chains
Single amino acid substitution in the haemoglobin molecule
Viral infection of RNA viruses
72. The word protein is derived from which language?
Latin
Greek
Italic
Hindi
73. What would be the number of nucleotides for a protein molecule of about 142 amino acids?
430
142
426
460
74. Number and sequence of amino acids is determined in:
Primary structure
Secondary structure
Tertiary
None of above
75. Phosphodiester bond is:
P—O—P—C—O—C
C—O—P—
C—O—P—O—C
C—C—O—P
76. Which one is an example of a nucleotide:
Adenosine
Guanine
ATP
NAD
77. Which one of the following is found in both messenger RNA and DNA of a mammalian cell?
Double helical structure
Ribose sugar
Thymine
Sugar-phosphate backbone
78. Which of the following are cell surface markers?
Glycoproteins
Glycolipids
Glycoacids
Sphingolipids
79. Non protein part required for proper and essential functioning of enzyme is called:
Allosteric factor
Co-Factor
Efficient factor
Extra factor
80. Enzymes are generally inactivated rapidly by exposure to UV high and also Alpha and beta rays because it alters the:
Quantity of enzyme
pH of enzyme
shape of enzymes
Temperature of enzyme
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