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Quiz 2
Mdcat-past-papers - BUMHS - Biology Quiz
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Board: BUMHS | Subject: Biology |
21. Waxes are formed by combination of fatty acids with :
Alcohol
Glycerol
Serine
Cysteine
22. Sara is a chemistry student who is carrying out an experiment between acetic acid and alcohol in the laboratory. The product formed at the end of the experiment will be:
Glucose and oxygen
Glycogen and water molecule
An ester and water molecule
Glycerol and sulphuric acid
23. This lipid is most common abundant richest source of energy in plant and animal body:
Phospholipid
unsaturated acylglycerol
Terpenoids
Terpenes
24. A process by which one glycerol molecule is linked with three fatty acids by the esterification the molecule form is known as:
Acylglycerol
Wax
Cholesterol
Phospholipids
25. Three hydrophobic fatty acid tails and a glycerol molecule join to form a :
Monoglyceride
Diglyceride
Triglyceride
Phospholipid
26. Which fatty acid would have the highest melting point?
Oleic acid
Palmitic acid
Lauric acid
Stearic acid
27. Lipid that protect plants from water loss are :-
Phospholipid
waxes
Terpenoids
Triglyceride
28. 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
29. The type of lipids which do not contain fatty acids are:
Phospholipids
Waxes
Steroids
Acylglycerol
30. Lipids, which do not contain fatty acid are:
Neutral lipid
Steroids
Phosphatidic acid
Waxes
31. The number and sequence of amino acids along a polypeptide chain is called _ structure of a protein:
Quaternary
Tertiary
Primary
Secondary
32. Proteins are the main ------- of the cell?
Physiological components
Functional components
Structural components
Biological components
33. forms almost three- fourth of the body by weight:
Water
Carbohydrates
Proteins
Lipids
34. 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
35. Fibrous proteins "Do NOT" take part in:
Blood clotting
formation of nails
muscle contraction
oxygen transport
36. 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
37. The word protein is derived from which language?
Latin
Greek
Italic
Hindi
38. What would be the number of nucleotides for a protein molecule of about 142 amino acids?
430
142
426
460
39. Number and sequence of amino acids is determined in:
Primary structure
Secondary structure
Tertiary
None of above
40. Phosphodiester bond is:
P—O—P—C—O—C
C—O—P—
C—O—P—O—C
C—C—O—P
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