CMJ UNIVERSITY, SHILLONG TERM END EXAMINATION - 2011 Question Booklet Code: A Duration: 2 Hours Course: Diploma in Medical Lab Technology Year: First Year Paper Code: 207102 Paper Name: Biochemistry ATTEMPT ALL THE BELOW MENTIONED QUESTIONS: 1) Which of the following sugars is 7) Triose carbohydrate is found in RNA? a. Glycerol a. Xylose b. Glyceraldehyde b. Threose c. Dihydroxy acetone c. Ribose d. Both b and c d. Glucose 8) L-Fructose is found in 2) Which of the following sugars is a monosaccharide? a. Sucrose c. Most fruits b. Fructose c. Raffinose 9) In Fehling's or Benedict's solution, d. Maltose a reducing sugar causes conversion 3) The ratio between hydrogen and oxygen in a carbohydrate is a. Ferric to Ferrous State b. Ferrous to Ferric State c. Cuprous to cupric State d. Cupric to cuprous state 10) Mannitol is 4) Deoxyribose is a. Amino acid a. C5H10O5 b. Amino alcohol b. C5H10O4 c. Sugar alcohol c. C6H12O6 d. Sugar acid d. C6H12O5 11) The number of isomers of glucose 5) Monosaccharides have carbons 6) The sugar present in milk is 12) Glycosides are found in many a. Casein a. Vitamins b. Maltose c. Lactose c. Minerals d. Heparin d. Nucleoproteins Center for Collaboration of Industry and Institutions (CCII) – www.cmju.in 13) The distinguishing test between 21) Ornithine in the presence of monosaccharides and disaccharides is carbonyl phosphate forms a. Bial's test a. Citrulline b. Seliwanoff's test b. Argininosuccinate c. Barfoed's test c. Arginine d. Hydrolysis test d. None of these 14) Glycogen structure includes a 22) Chemical mutagens include branch in between alpha-glucose a. 5-bromouracil 23) Inhibitor(s) of protein synthesis 15) Cyclic AMP is formed from ATP by a. Benzene hexachloride the enzyme adenylate cyclase which b. 2, 6-dichlorophenol indophenol is activated by the hormone c. 5-methyltryptophan a. Insulin d. Phosphoadenosine phosphosulphate b. Epinephrine c. Testosterone 24) The end product of serotonin d. Progesterone catabolism is 16) Hexokinase has a high affinity for a. tyrosine glucose than b. norepinephrine a. Fructokinase c. epinephrine b. Galactokinase d. 5-hydroxyindoleacetic acid c. Glucokinase 25) The most important inorganic d. All of these requirements for human beings are 17) Concentration of fatty acids a. sodium (total) in serum in normal b. chromium adults is c. selenium a. 250-800 mg% d. copper b. 180-360 mg% 26) Zinc is a part of the structure of c. 250-550 mg% the enzyme d. 200-425 mg% a. Carboxypeptidase 18) The essential amino acids are b. Pepsin a. Proline c. Trypsin b. Aspartic acid d. Carbonic anhydrase c. Glycine d. Methionine 27) Manganese is involved in 19) Concentration of tryptophan in activating the enzymes plasma is a. Peptidases a. undetectable b. Carboxylase b. 5-10 mg% c. Cholinesterase c. 10-20 mg% d. All of these d. 30-50 mg% 28) The term lipid was given by 20) Tyrosinosis is a a. Sutherland a. Rare disease b. popular disease c. Altmann c. disease of Western Countries d. Berzelius d. disease of South East Asian Countries 2 | P a g e Center for Collaboration of Industry and Institutions (CCII) – www.cmju.in 29) A saturated fatty acid is 37 ) Kerasin contains a. with no double bond a. Nervonic acid b. high melting point b. Hydroxynervonic acid c. low melting point c. Cerebronic acid d. both a and b d. Lignoceric acid 30) Hydrogenation 38) Lipoprotein present in cell a. increases percentage of EFA membrane is by nature b. destroys EFA a. Hydropholic c. converts waxes into neutral fats b. Hydrophilic d. forms conjugated linoleic acid c. Both a and b 31) Which one yields twice as many d. None of these calories as carbohydrate per unit 39) Lipoproteins may be identified more accurately by means of a. Protein a. Electrophoresis b. Centrifugation c. Amino acids c. Immuno-electrophoresis d. Vitamins d. Ultra centrifugation 32) Cholesterol is 40) The iodine number of essential a. Monosaccharide fatty acids of vegetable oils b. Protein c. Sterol b. very high c. very low 33) In contact with water; phospholipids produce 41 ) Secondary structure of protein is a. Monolayer a. Alpha-helix b. Bilayer b. Beta-pleated c. Trilayer c. Beta-helix d. Emulsion d. Both a and b 34) Bee's wax consists of 42) Which is type of secondary a. Mericyl palmitate protein structure? b. Mericyl stearate a. alpha-helix c. Cetyl palmitate b. beta-pleated d. Cetyl stearate c. collagen helix 35 ) Lycopene, the colouring agent of d. all of these Tomato, is a 43) Final structure in fibrous proteins a. Sterol b. Terpenoid a. Secondary structure c. Sphingolipid b. tertiary structure d. Phospholipid c. Quaternary structure 36 ) Sphingomyelins contain a d. Primary structure complex amino alcohol called 44) The non-essential amino acids a. Serine are termed as b. Lysolecithin a. dispensable amino acids c. Sphingosine b. semi-indispensable amino acids d. Glycol c. indispensable amino acids d. lipotropic factors Center for Collaboration of Industry and Institutions (CCII) – www.cmju.in 45) Out of 200 different amino acids 53) Indirect very good sources of found in nature how vitamin A include many amino acids present in a. Carrots proteins? b. Tomatoes c. Both a and b 54) Alcoholic drinks are a source of a. Energy 46) Amino acids are insoluble in b. Wastage of energy a. Acetic acid c. Kidney diseases b. Chloroform d. Vitamins c. Ethanol 55) Beriberi is characterized by d. Benzene a. Bradycardia 47) Polymers of more than 100 amino b. Anorexia (loss of appetite) acids are called c. Both a and b a. Proteins d. Dementia b. Polypeptides 56) The flavin found in the milk is c. Both of the above d. None of the above a. Lactoflavin 48) Each hydrogen bond is quite b. Ovoflavin a. strong c. Hepatoflavin d. Verdoflavin c. both a and b 57) Oxidase are generally inhibited d. none of these 49) Each turn of alpha-helix contains a. Cyanides how many amino acids? b. Fluorides c. Salts of mercury d. Salts of silver 58) The coenzyme containing an aromatic heteroring in the structure 50) The third active process for amino acids transport involves a. Biotin a. basic amino acids b. neutral amino acids c. Sugar phosphate c. acidic amino acids d. Coenzyme Q d. sulphur containing amino acids 59) Carotenes are transported with 51 ) Vitamin C is a. quite strongly acid a. Proteins b. a mild acid b. Lipids c. Lipo-proteins d. neither acid nor a base d. Minerals 52) Vitamin K1 is found in 60) Some tocopherols are a. Green leafy plants a. terpenoid in structure b. Dionol in structure c. Fishes c. Isoprenoid in structure d. Famesyl in structure Center for Collaboration of Industry and Institutions (CCII) – www.cmju.in 61) The symptoms of scurvy are 69) The evolution of carbon dioxide is a. Poor healing of wounds more than the intake of oxygen when b. Loosening of teeth a. fats are respired c. Anaemia b. glucose is respired d. All of these c. organic acids are respired 62) Folic acid is also called d. sucrose is respired a. SLR factor 70) The principal molecules that b. Pteroyl-glutamic acid stores energy is c. Liver lactobacillus casei factor d. All of these 63) Respiration is d. Protein molecules a. Breaking down of complex organic b. Transformation of potential energy into c. Libration of energy d. All of these 64) Kreb's cycle takes place in a. Mitochondria b. Chloroplast c. Ribosome d. Endoplasmic reticulum 65) Different steps in respiration are controlled by a. Enzymes b. Sugars c. Auxins d. Kinins 66) The other name of glycolysis is a. TCA pathway b. HMS pathway c. Carbon pathway d. EMP pathway 67) Respiration is an a. Exothermic process b. Endothermic process c. Anabolic process d. Endergonic process 68) The end product of fermentation is a. Pyruvic acid and H2O b. H2O and CO2 c. C2H5OH and CO2 Center for Collaboration of Industry and Institutions (CCII) – www.cmju.in
THE VALUE OF 24 HOUR PROFILES IN CONGENITAL ADRENAL Kathy Geertsma and Peter Hindmarsh Having participated in discussions on several message boards regarding what I have learnt through my son having 24 hour profiles, many people have contacted me with questions. This prompted me to ask his Professor, Peter Hindmarsh of Great Ormond Street Hospital, London, to explain the benefits of havi
A COMPLEXIDADE E A EMPRESA Edgar Morin Imaginemos uma tapeçaria contemporânea. Ela comporta fios de linho, seda, algodão, lã, de coresvariadas. Para conhecê-la, seria interessante conhecer as leis e princípios relativos a cada umadessas espécies de fio. Contudo, a soma dos conhecimentos sobre cada tipo de fio que compõe atapeçaria é insuficiente para conhecer essa nova realidade qu
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