Biology Fsc Part 1 Online Test With Answers

Biology Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 The globular structur eo protein is mantalined by............bonds. Ionic, hydrogen, disulphide Hydrogen, covalent , peptide  Hydrogphobic interactions, hydrogen bond, hydrophiclic interactions Only hydrogen bond
2 The bond which maintains secorndary structure of a protein is. Hydrophobic interaction  Ionic bond Hydrophilic interaction  Hydrogen bond
3 The proteins get coliled or folded within polypeptide chan at Primay level  Secondary leve Tertiary level Quanternary level
4 Sickle cell hemoglobin valine takes the place of. Glutaminc acid Glutamine Aspartic acid Phenylalanine
5 In the primary structure of insulin alpha chain has 21 amino acids while beta chain has 30 amio acids, both these chains are juoined by  Hydrogen bod Disulphide bond Ionic bond Covalent bond
6 If hemoglobin's quaternary structure was disrupted what would be the immedia consequence. Oxygen transporation efficiency would decrease Hemoglobin would mroe efficinetly transport gases Size of RBCs would incresse  Both b and c
7 Number of peptide bonds in tetrapetide are. 1 2 3 4
8 Disaccharides and dipepides are formed as a result of. Dehdration synthesis Hydrolysis Oxidation reduction  Catabolism
9 Which one of the following amino acid is not synthesized by our bodies Alanine Proline  Histidine Glutamine
10 Which group of amino acid sresponsiblefor its identity and unique chemicla properties. R-group COOH group NH2 group All of above
11 The total number of differente type sof amino acids that have been reported to occur in living organisms is. 25 20 170 300
12 The most abundant organic biomolecules in cells are. Nucleic acids Proteins Lipids Carbohydrates
13 Modified form of cellulose is called. Chitin Pectin Agar Dextrin
14 Starch coils into helices,while cellulose form straight chains, due to difference in. Glycosideic bond orientiation  Hydrogen bond number Isomerization  Presence of n -containing groups
15 Cellucose is not digested by humans because. It lacks glycosideic bonds Human amylase annot hydroyze beta (1-4) linkages It contains nitrogen containing grop It is very hard to eat
16 Chitin differs from cellulose in having  Alpha (1-4) linkages Nitrogen -containing groups Brached glucose chian Ether linkage
17 Glucose is ............as sweet as sucrose Half 2 times  10 times 4 times
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