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Quiz 3
Mdcat-past-papers - ETEA - Biology Quiz
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Board: ETEA | Subject: Biology |
41. Which is correct about xanthophylls?
Made of isoprenoids
Made of amino acids
Made of nucleotides
Made of fatty acids
42. C-H bonds in lipids are important:
As insulating material
Providing more energy
As exoskeleton
As cuticle of leaves
43. In an amino acid, in which R group is H, its name will be
Alanine
Glycine
Leucine
Valine
44. Which of following is a peptide bond?
C-N
C-P
C-O
-C-S
45. Myosin is a _ type of protein:
Intermediate
Simple
Globular
Fibrous
46. Secondary structure of protein is found in:
Trypsin
Keratin
Insulin
Glucagon
47. The structure of fibrous protein comprises a polypeptide chain in the form of:
Clusters
Flat uncoiled chains
Spherical
Long strands or fibrils
48. In glycine R is _.
Fatty acid
Ethane
Hydrogen
Methane
49. All enzymes are-
Fibrous proteins
Low molecular weight proteins
Lipoproteins
Globular Proteins
50. Unique three-dimensional shape of the fully folded polypeptide, constitutes:
primary structure of protein
secondary structure of protein
tertiary structure of protein
Quaternary structure of protein
51. A disulphide bridge is found in which biomolecule?
Enzyme
Protein
Carbohydrate
Lipid
52. Two amino acids form a dipeptide through:
Condensation reaction
Ionic bond formation
Hydrolysis
Hydrogen bonding
53. A haemoglobin molecule consists of -------amino acids:
874
474
574
574
54. Proteins are macromolecules formed of units known as amino acids. The amino acids which the variable group R is represented by an H atom is:
Lysine
Phenylalanine
Glycine
Alanine
55. For globular proteins which structure is important?
Primary
Secondary
Tertiary
Quaternary
56. Which level of protein structure can be achieve by two polypeptide chains?
Primary
Secondary
Tertiary
All can be present
57. Proteins with tertiary structure are helpful in:
Carrying messages from glands to target organs
Maintaining epithelial lining of skin
Making the matrix of connective tissue
Helping muscle contraction
58. Which of the following combination of base pair is absent in DNA?
A—T
C—G
A—U
T—U
59. The four types of fundamental biological molecules present in cytoplasm are carbohydrates, proteins, lipids and:
Enzymes
Hormones
Nucleic acids
Alkaloids
60. MD is an example of:
Mononucleotide
Trinucleotide
Dinucleotide
Tetranucleotide
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