tag:blogger.com,1999:blog-8293761822509364699Fri, 30 Oct 2009 10:14:06 +0000http://ourbiochemistry.blogspot.com/noreply@blogger.com (doctor)Blogger35125noreply@blogger.comnoHumanBiochemistryMcqshttp://feedburner.google.comtag:blogger.com,1999:blog-8293761822509364699.post-6681176972697744419Sun, 18 Oct 2009 20:15:00 +00002009-10-18T13:19:17.973-07:00formation of glycinamide ribonucleotidefolate biochemistry mcqsbiochemical reactions of folate coenzymessingle carbon units transferred in folate reactionsfolate associated reactions Reaction Coenzyme Form of Folate Involved and Single Carbon unit transferred Importance Formate activation THF; -CHO group transferred. Generation of 10-formyl-THF Purine synthesis Formation of glycinamide ribonucleotide 5,10-MethyleneTHF; -CHO group transferred Formation of purines needed for DNA, RNA synthesis, but reactions  probably not rate limiting http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/LAB3LtzokWg/37-biochemical-reactions-of-folate.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/3sy8-zi6PLQFvPyl3M-McCTtIJk/0/da"><img src="http://feedads.g.doubleclick.net/~a/3sy8-zi6PLQFvPyl3M-McCTtIJk/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/3sy8-zi6PLQFvPyl3M-McCTtIJk/1/da"><img src="http://feedads.g.doubleclick.net/~a/3sy8-zi6PLQFvPyl3M-McCTtIJk/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2009/10/37-biochemical-reactions-of-folate.htmltag:blogger.com,1999:blog-8293761822509364699.post-695547765565630721Wed, 16 Sep 2009 16:05:00 +00002009-09-16T10:06:47.440-07:00mutations in collagen disordersmenkes diseaseehler danlos syndromeschmid metaphyseal chondrodysplasiacollagen disorders gene defectsosteogenesis imperfecta Diseases Caused by Mutations in Collagen Genes or by Deficiencies in the Activities of Posttranslational Enzymes Involved in the Biosynthesis of Collagen. Gene or Enzyme Disease COL1A1, COL1A2  Osteogenesis imperfecta, type 1 (MIM 166200) Osteoporosis (MIM 166710) Ehlers-Danlos syndrome type VII autosomal dominant (130060) COL2A1  Severe chondrodysplasias Osteoarthritis (http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/Gd7ZsxUxigc/36-diseases-caused-by-mutations-in.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/fNgZmGP5cjYbw3T2TcVRoJx0F_8/0/da"><img src="http://feedads.g.doubleclick.net/~a/fNgZmGP5cjYbw3T2TcVRoJx0F_8/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/fNgZmGP5cjYbw3T2TcVRoJx0F_8/1/da"><img src="http://feedads.g.doubleclick.net/~a/fNgZmGP5cjYbw3T2TcVRoJx0F_8/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2009/09/36-diseases-caused-by-mutations-in.htmltag:blogger.com,1999:blog-8293761822509364699.post-8208658862931979398Sun, 26 Apr 2009 07:50:00 +00002009-04-26T00:50:02.180-07:00cystinuria mcqschromatography mcqscitric acid cycle mcqsvitamin k mcqsaiims may 2001 complete paper mcqs with answersaiims may 2001 biochemistry mcqs with answerschylomicrons mcqs1q) Vitamin K is needed for the post translational modification of a) Carboxylation b) Methylation c) Hydroxylation d) Transketolation answer will post soon 2q) Amber codon refers to a) Initiating codon b) Mutant codon c) Stop codon d) Codon coding for multiple amino acids answer will post soon 3q) At physiological pH, the most stable amino acid is a) Histidine http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/wrlajmdhyYI/35-aiims-may-2001-biochemistry-mcqs.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/x8hA-g3pok6xFA_mXSMqV4U10bw/0/da"><img src="http://feedads.g.doubleclick.net/~a/x8hA-g3pok6xFA_mXSMqV4U10bw/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/x8hA-g3pok6xFA_mXSMqV4U10bw/1/da"><img src="http://feedads.g.doubleclick.net/~a/x8hA-g3pok6xFA_mXSMqV4U10bw/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2009/04/35-aiims-may-2001-biochemistry-mcqs.htmltag:blogger.com,1999:blog-8293761822509364699.post-6627263687739079692Tue, 31 Mar 2009 09:32:00 +00002009-03-31T02:38:43.372-07:00aminoacids mcqsalpha helix structure of proteinprotein structure mcqsaiims november 2002 biochemistry mcqsproteins mcqscharged aminoacids listaspartate mcqs1q: an alfa helix of a protein is most likely to be disrupted if a missense mutation introduces the following aminoacid with in the alpha helical structure ?a. alanineb. aspartic acidc. tyrosined. glycine answer b . aspartic acid explanation : alfa helix of a protein can be disrupted due to the introduction of the following aminoacids :1. proline : the imino group of proline is not http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/Q2VAeTOaOXs/34-aiims-november-2002-biochemistry.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/0SoQuS-D-cABiUWoIgf410qZ6L0/0/da"><img src="http://feedads.g.doubleclick.net/~a/0SoQuS-D-cABiUWoIgf410qZ6L0/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/0SoQuS-D-cABiUWoIgf410qZ6L0/1/da"><img src="http://feedads.g.doubleclick.net/~a/0SoQuS-D-cABiUWoIgf410qZ6L0/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2009/03/34-aiims-november-2002-biochemistry.htmltag:blogger.com,1999:blog-8293761822509364699.post-8644271993031513133Sat, 15 Nov 2008 08:16:00 +00002009-03-15T01:12:32.241-07:00aiims past papers biochemistry mcqsaiims november 2008 paperaiims biochemistry mcqsaiims immunology november 2008 mcqsaiims immunology mcqsAIIMS november 2008 biochemistry mcqs1q: dna without introns is?A. B dnab. Z dnac. C dnad. Mitochondrial dnaAnswer:2q: all are true about glutathione except?A. Converts hemoglobin to methemoglobinb. Decreases free radicalsc. Helps in conjugation reactiond. Co factor of various enzymesAnswer: 3q: Ribosome has followin enzymatic activity?A. Peptidyl transferaseb. Amino acyl t rna synthetasec. Peptidased.Answer:4q: which enzyme is http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/LsUyEWq4AYY/33-aiims-november-2008-biochemsitry.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/mbjSBeFXe9rtyf9ES8GDW5mONvc/0/da"><img src="http://feedads.g.doubleclick.net/~a/mbjSBeFXe9rtyf9ES8GDW5mONvc/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/mbjSBeFXe9rtyf9ES8GDW5mONvc/1/da"><img src="http://feedads.g.doubleclick.net/~a/mbjSBeFXe9rtyf9ES8GDW5mONvc/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/11/33-aiims-november-2008-biochemsitry.htmltag:blogger.com,1999:blog-8293761822509364699.post-3259169687375047361Thu, 13 Nov 2008 03:14:00 +00002008-11-12T19:19:36.422-08:00photinus pyralisaiims november 2008 paperATP mcqsaiims biochemistry mcqsluciferaseAIIMS november 2008 biochemistry mcqsfire fly light production mechanismQ1. what is the source of energy for light production in the firefly ?” 1. ATP 2. GTP 3. phosho creatine 4. NADH The answer is ATP…. Let me start the discussion with this question …..“DO YOU THINK THAT THE QUESTION IS RELEVANT TO US ?” If you think this question is irrelevant , then go through the following discussion & then you ll understand why these AIIMS people want us to know about the http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/7YxNkJS6_kI/32-aiims-novemeber-2008-biochemistry.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/XPPUVzl4kR79XMQzs2Es0QgH1Oo/0/da"><img src="http://feedads.g.doubleclick.net/~a/XPPUVzl4kR79XMQzs2Es0QgH1Oo/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/XPPUVzl4kR79XMQzs2Es0QgH1Oo/1/da"><img src="http://feedads.g.doubleclick.net/~a/XPPUVzl4kR79XMQzs2Es0QgH1Oo/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/11/32-aiims-novemeber-2008-biochemistry.htmltag:blogger.com,1999:blog-8293761822509364699.post-2094237357965686993Mon, 18 Aug 2008 13:19:00 +00002008-08-18T06:24:22.474-07:00rate limiting enzymes mcqscatecholamine synthesisbile acid synthesisbiochemistry mcqstyrosine hydroxylase7 alpha hydroxylasefatty acid synthesisacetyl coa carboxylase RATE LIMITING ENZYMES OF DIFFERENT BIOCHEMICAL PATHWAYS GLYCOLYSIS –-------------------------- phosphofructokinase GLYCOGEN SYNTHESIS –---------- glycogen synthetase GLYCOGENOLYSIS –----------------- glycogen phosphorylase TCA cycle –-------------------------------- isocitrate dehydrogenase CHOLESTEROL SYNTHESIS –----- HMG CoA http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/afg44yWSXYk/31-rate-limiting-enzymes-of-biochemical.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/jn-ItMqKNrKeqQ1Qi3qEo7q_1YI/0/da"><img src="http://feedads.g.doubleclick.net/~a/jn-ItMqKNrKeqQ1Qi3qEo7q_1YI/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/jn-ItMqKNrKeqQ1Qi3qEo7q_1YI/1/da"><img src="http://feedads.g.doubleclick.net/~a/jn-ItMqKNrKeqQ1Qi3qEo7q_1YI/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/08/31-rate-limiting-enzymes-of-biochemical.htmltag:blogger.com,1999:blog-8293761822509364699.post-147425268054871046Mon, 18 Aug 2008 12:23:00 +00002008-11-19T13:58:19.850-08:00leukotriene synthesisarachidonic acid metabolismcyclooxygenasethromboxane synthesiscox-1cox-2prostacyclin synthesislipoxygenaseprostaglandin synthesisecosanoid synthesissource : www.wikipedia.org http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/3ni3_8d8-tY/30-eicosanoid-synthesis-pgs-lts-txa.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/VUP1JPAQKL_RlRnrtixuTnOlP4o/0/da"><img src="http://feedads.g.doubleclick.net/~a/VUP1JPAQKL_RlRnrtixuTnOlP4o/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/VUP1JPAQKL_RlRnrtixuTnOlP4o/1/da"><img src="http://feedads.g.doubleclick.net/~a/VUP1JPAQKL_RlRnrtixuTnOlP4o/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/08/30-eicosanoid-synthesis-pgs-lts-txa.htmltag:blogger.com,1999:blog-8293761822509364699.post-6407232296626571633Mon, 11 Aug 2008 05:42:00 +00002008-11-19T13:57:53.580-08:00thiolasestatinshmg coa synthetasehmg coa reductasesqualenecholesterol synthesis flowchartlanosterolacetyl coa metabolismbisphosphonatesmevalonateCholesterol is a lipid found in the cell membranes of all animal tissues, and is transported in the blood plasma of all animals. Cholesterol is also a sterol (a combination steroid and alcohol). Because cholesterol is synthesized by all eukaryotes, trace amounts of cholesterol are also found in membranes of plants and fungi. The name originates from the Greek chole- (bile) and stereos (solid), http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/34y0lQm6QHQ/29-cholesterol-synthesis.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/z3DsdBUv21z9ftTBxzhLLgDg9ws/0/da"><img src="http://feedads.g.doubleclick.net/~a/z3DsdBUv21z9ftTBxzhLLgDg9ws/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/z3DsdBUv21z9ftTBxzhLLgDg9ws/1/da"><img src="http://feedads.g.doubleclick.net/~a/z3DsdBUv21z9ftTBxzhLLgDg9ws/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/08/29-cholesterol-synthesis.htmltag:blogger.com,1999:blog-8293761822509364699.post-8610788673676492090Tue, 10 Jun 2008 08:06:00 +00002008-06-20T06:11:31.592-07:00reactions in mitochondriaornithine cycleurea cycleCPS 1OTC enzymearginosuccinate synthasekreb-hanseliet urea cyclesteps of urea cycle in mitochondria and cytosol Reactions of cycle: Step Reactant Product Catalyzed by 1M 2ATP + HCO3- + NH4+ carbamoyl phosphate + 2ADP + Pi CPS 2M carbamoyl phosphate + ornithine citrulline + Pi OTC 3C citrulline + aspartate + ATP argininosuccinate + AMP + PPihttp://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/ZuNnZWqKskc/28-urea-cycle.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/cu27AaPMUVOcGVHNzW4c7Mx0iuA/0/da"><img src="http://feedads.g.doubleclick.net/~a/cu27AaPMUVOcGVHNzW4c7Mx0iuA/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/cu27AaPMUVOcGVHNzW4c7Mx0iuA/1/da"><img src="http://feedads.g.doubleclick.net/~a/cu27AaPMUVOcGVHNzW4c7Mx0iuA/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/06/28-urea-cycle.htmltag:blogger.com,1999:blog-8293761822509364699.post-8029986492494364310Thu, 29 May 2008 09:14:00 +00002008-05-29T04:18:21.470-07:00use of pcr in forensic scienceskary mullisDNA polymerasesreal time pcrdna amplificationPCRtaq polymerasepolymerase chain reactionpfu polymerasecheck out this page for an animation which excellently depicts the basic principle and mechanism underlying PCR . CLICK HERE The polymerase chain reaction (PCR) is a technique widely used in molecular biology. It derives its name from one of its key components, a DNA polymerase used to amplify a piece of DNA by in vitro enzymatic replication. As PCR progresses, the DNA thus generated is itself http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/lOIHNjhe_D0/27-polymerase-chain-reaction-pcr.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/XboX9feLxSn-p5yh6hQRUNDcmsA/0/da"><img src="http://feedads.g.doubleclick.net/~a/XboX9feLxSn-p5yh6hQRUNDcmsA/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/XboX9feLxSn-p5yh6hQRUNDcmsA/1/da"><img src="http://feedads.g.doubleclick.net/~a/XboX9feLxSn-p5yh6hQRUNDcmsA/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/05/27-polymerase-chain-reaction-pcr.htmltag:blogger.com,1999:blog-8293761822509364699.post-3068528100557510534Tue, 27 May 2008 09:55:00 +00002008-05-27T02:58:31.714-07:00tca cycle mcqsbiochemistry pgi chandigarh mcqsbile acids mcqsprimary and secondary bile acidscitric acid cycle mcqsbiochemistry mcqsglycogen storage disorders mcqsvitamin c mcqs156. which of the following require template for its formation ? <!--[if !supportLists]-->a- <!--[endif]-->carbohydrate <!--[if !supportLists]-->b- <!--[endif]-->protein <!--[if !supportLists]-->c- <!--[endif]-->lipids <!--[if !supportLists]-->d- <!--[endif]-->phospholipids <!--[if !supportLists]-->e- <!--[endif]-->nucleic acids answer : b and e . proteins http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/gZs1GePEcOU/24-biochemistry-mcqs-156-to-166.htmlnoreply@blogger.com (doctor)1 <p><a href="http://feedads.g.doubleclick.net/~a/7eTSOYR4uSvb14OTQxpnqBJH8FU/0/da"><img src="http://feedads.g.doubleclick.net/~a/7eTSOYR4uSvb14OTQxpnqBJH8FU/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/7eTSOYR4uSvb14OTQxpnqBJH8FU/1/da"><img src="http://feedads.g.doubleclick.net/~a/7eTSOYR4uSvb14OTQxpnqBJH8FU/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/05/24-biochemistry-mcqs-156-to-166.htmltag:blogger.com,1999:blog-8293761822509364699.post-8894563217426710495Tue, 27 May 2008 05:37:00 +00002008-05-26T22:59:03.410-07:00biochemistry pgi chandigarh mcqscomplex 4 of etcazides mcqscytochrome oxidase inhibitorsetc mcqselectron transport chain mcqscarbonmonoxide mcqscyanide mcqsquestion : cytochrome oxidase is inhibited by :a- cyanideb- aluminium phosphidec- phenobarbitoned- carbonmonoxidee- NOanswer : cyanide and carbon monoxide are the answers .inhibitors of cytochrome ( a + a3 ) oxidase ( complex IV ) of electron transport chain ( ETC ) are :1. carbonmonoxide ( inhibits the enzyme by combining with O2 binding sites )2. cyanide3. azide ( sodium azide example )4. H2S http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/ohJt769qtPQ/23-cytochrome-oxidase-inhibitors.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/Gv7gn_3AqZI0xfQEmg_IeKbqUNI/0/da"><img src="http://feedads.g.doubleclick.net/~a/Gv7gn_3AqZI0xfQEmg_IeKbqUNI/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/Gv7gn_3AqZI0xfQEmg_IeKbqUNI/1/da"><img src="http://feedads.g.doubleclick.net/~a/Gv7gn_3AqZI0xfQEmg_IeKbqUNI/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/05/23-cytochrome-oxidase-inhibitors.htmltag:blogger.com,1999:blog-8293761822509364699.post-2308912867337114391Tue, 27 May 2008 05:13:00 +00002008-05-26T22:23:37.844-07:00DNA polymerase 25'-3' polymerase activityexcision repairDNA polymerase 3DNA polymerase mcqsDNA replication enzymesDNA polymerase 13'-5' exonuclease activityproof readinggenetics mcqsquestion : DNA polymerases have a- 3' - 5' polymerase activityb- 5' - 3' polymerase activityc- 3' - 5' exonuclease activityd- 5' - 3' exonuclease activitye- endonuclease activityanswer : b , c , d are the answers .DNA Polymerase 1 has both proof reading and excision repair activity , that is it has both 3' - 5' exonuclease activity and 5' - 3' exonuclease activity respectively. where as the DNAhttp://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/ncgMoNOiBaA/22-dna-polymerase-mcqs.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/ms7TPVebq-EHhnPTt9bMle2LfmQ/0/da"><img src="http://feedads.g.doubleclick.net/~a/ms7TPVebq-EHhnPTt9bMle2LfmQ/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/ms7TPVebq-EHhnPTt9bMle2LfmQ/1/da"><img src="http://feedads.g.doubleclick.net/~a/ms7TPVebq-EHhnPTt9bMle2LfmQ/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/05/22-dna-polymerase-mcqs.htmltag:blogger.com,1999:blog-8293761822509364699.post-5238862758979226044Thu, 15 May 2008 06:34:00 +00002008-05-14T23:37:28.325-07:00reactions in peroxisomesbiochemical pathways and their locationtca cycle organellefatty acid elongation organellegluconeogenesis locationcholesterol synthesis organelle PATHWAYS AND THE ORGANELLES IN WHICH THEY TAKE PLACE : GLYCOLYSIS --------------------- CYTOPLASMT.C.A CYCLE --------------------- MITOCHONDRIAFATTY ACID SYNTHESIS ---- CYTOPLASMFATTY ACID OXIDATION ---- MITOCHONDRIA ------------------------------------------------------------------------------------------------------- KETONE BODY SYNTHESIS - MITOCHONDRIAKETONE BODY OXIDATION – http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/z19uIH7V7-U/21-biochemical-pathways-and-their.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/REcIf7xck3IhG2jNbcNKpuA-w0w/0/da"><img src="http://feedads.g.doubleclick.net/~a/REcIf7xck3IhG2jNbcNKpuA-w0w/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/REcIf7xck3IhG2jNbcNKpuA-w0w/1/da"><img src="http://feedads.g.doubleclick.net/~a/REcIf7xck3IhG2jNbcNKpuA-w0w/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/05/21-biochemical-pathways-and-their.htmltag:blogger.com,1999:blog-8293761822509364699.post-357271322307043082Wed, 14 May 2008 12:43:00 +00002008-05-14T23:38:45.879-07:00pancreatic carboxypeptidaseenzyme with selenium as cofactorldhgdhglutathione peroxidasealkaline phosphataseenzymes with zinc as cofactordelta-ala dehydrataseQUESTION : all the following enzymes have zinc as a cofactor except ?a- glutamate dehydrogenaseb- alcohol dehydrogenasec- lactate dehydrogenased- alkaline phosphatasee- glutathione peroxidaseanswer : e . glutathione peroxidase uses selenium as a cofactor and not zinc.the list of enzymes which use zinc as a cofactor are :1. glutamate dehydrogenase2. alcohol dehydrogenase3. lactate dehydrogenase4. http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/ho4TJXj6ozM/20-enzymes-with-zinc-as-cofactor.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/pDNanu5TJJVrBnKLlAzUHwrHmaM/0/da"><img src="http://feedads.g.doubleclick.net/~a/pDNanu5TJJVrBnKLlAzUHwrHmaM/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/pDNanu5TJJVrBnKLlAzUHwrHmaM/1/da"><img src="http://feedads.g.doubleclick.net/~a/pDNanu5TJJVrBnKLlAzUHwrHmaM/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/05/20-enzymes-with-zinc-as-cofactor.htmltag:blogger.com,1999:blog-8293761822509364699.post-4010929702244386521Thu, 06 Mar 2008 08:25:00 +00002008-03-06T00:47:54.360-08:00vitamin b6serotonin synthesisdopamine synthesispyridoxaminexanthinuric acidtryptophan load testGABA synthesispyridoxal phosphatepyridoxinenorepinephrine synthesisVitamin B6 Vitamin B6 is a water-soluble vitamin that was first isolated in the 1930s. There are three traditionally considerd forms of vitamin B6: pyridoxal (PL), pyridoxine (PN), pyridoxamine (PM). The phosphate ester derivative pyridoxal 5'-phosphate (PLP) is the principal coenzyme form and has the most importance in human metabolism . Function Vitamin B6 must be obtained from the diet http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/Egje1b0CpIo/19-vitamin-b6-pyridoxine.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/Rg9kaLFO9IyUkpnHQlo-Oa05wTM/0/da"><img src="http://feedads.g.doubleclick.net/~a/Rg9kaLFO9IyUkpnHQlo-Oa05wTM/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/Rg9kaLFO9IyUkpnHQlo-Oa05wTM/1/da"><img src="http://feedads.g.doubleclick.net/~a/Rg9kaLFO9IyUkpnHQlo-Oa05wTM/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/03/19-vitamin-b6-pyridoxine.htmltag:blogger.com,1999:blog-8293761822509364699.post-8132699021462221004Mon, 14 Jan 2008 06:09:00 +00002008-01-13T22:12:46.122-08:00heparinductus arteriosusbiochemistrypge2mcqsxa<!--[endif]-->154) True about Heparin is <!--[if !supportLists]-->a. <!--[endif]-->Basic in nature <!--[if !supportLists]-->b. <!--[endif]-->Contains Glucronic Acid <!--[if !supportLists]-->c. <!--[endif]-->LMW Heparin selectively inhibit Xa <!--[if !supportLists]-->d. <!--[endif]-->no effect on platelet Answer : c) LMW Heparin selectively inhibit Xa http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/_agBhPvBvlo/18-biochemistry-mcqs-154-to-155.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/HhhpY27lWy3Kv_Pxeco8dwp9vmU/0/da"><img src="http://feedads.g.doubleclick.net/~a/HhhpY27lWy3Kv_Pxeco8dwp9vmU/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/HhhpY27lWy3Kv_Pxeco8dwp9vmU/1/da"><img src="http://feedads.g.doubleclick.net/~a/HhhpY27lWy3Kv_Pxeco8dwp9vmU/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/01/18-biochemistry-mcqs-154-to-155.htmltag:blogger.com,1999:blog-8293761822509364699.post-541459347979064998Mon, 14 Jan 2008 05:46:00 +00002008-01-13T21:50:52.253-08:00biochemistryDiphyllobothrium latuminsulin resistant syndromehyperventilationmcqsanterior pituitary<!--[endif]-->143) Urea synthesized mainly in <!--[if !supportLists]-->a. <!--[endif]-->Liver <!--[if !supportLists]-->b. <!--[endif]-->Heart <!--[if !supportLists]-->c. <!--[endif]-->Kidney <!--[if !supportLists]-->d. <!--[endif]-->brain Answer : Liver Reference: Chaterjee 6th Edition Page 411 <!--[if !supportLists]-->144) <!--[endif]-->The Endhttp://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/rnxa4pXSPZ8/17-biochemistry-mcqs-143-to-153.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/qjHrnBNFqlz39E7SnOIw8P3ouzE/0/da"><img src="http://feedads.g.doubleclick.net/~a/qjHrnBNFqlz39E7SnOIw8P3ouzE/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/qjHrnBNFqlz39E7SnOIw8P3ouzE/1/da"><img src="http://feedads.g.doubleclick.net/~a/qjHrnBNFqlz39E7SnOIw8P3ouzE/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/01/17-biochemistry-mcqs-143-to-153.htmltag:blogger.com,1999:blog-8293761822509364699.post-1997881911833681992Mon, 14 Jan 2008 05:40:00 +00002008-01-13T21:45:30.891-08:00maple syrup urine diseasehartnup's diseasebiochemistryNADPHmcqsniacin vitamin132) Vitamin useful in the treatment of Hartnup’s disease is <!--[if !supportLists]-->a. <!--[endif]-->Biotin <!--[if !supportLists]-->b. <!--[endif]-->Niacin <!--[if !supportLists]-->c. <!--[endif]-->Folic Acid <!--[if !supportLists]-->d. <!--[endif]-->Thiamine Answer : b) Niacin Reference: Harrison 15th Edition Chapter 353 <!--[if !supportLists]-->http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/GqY_9rWznIA/16-biochemistry-mcqs-132-to-142.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/5zlSevlcxZ6vRlRZ4fPl4T85Jn8/0/da"><img src="http://feedads.g.doubleclick.net/~a/5zlSevlcxZ6vRlRZ4fPl4T85Jn8/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/5zlSevlcxZ6vRlRZ4fPl4T85Jn8/1/da"><img src="http://feedads.g.doubleclick.net/~a/5zlSevlcxZ6vRlRZ4fPl4T85Jn8/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/01/16-biochemistry-mcqs-132-to-142.htmltag:blogger.com,1999:blog-8293761822509364699.post-6393702385800992837Mon, 14 Jan 2008 05:33:00 +00002008-01-13T21:39:26.995-08:00vanderwalls bondniacin deficiencycasals necklacevibration propertyrbc transketolasemissence mutation<!--[endif]-->121) Stop Codons <!--[if !supportLists]-->a. <!--[endif]-->UAG <!--[if !supportLists]-->b. <!--[endif]-->UGA <!--[if !supportLists]-->c. <!--[endif]-->UAA <!--[if !supportLists]-->d. <!--[endif]-->All Answer (d) All of the above Reference: Harper 27th Edition Page 366 <!--[if !supportLists]-->122) <!--[endif]-->Weakest bond <!--[http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/CgUM9bU2dh4/15-biochemistry-mcqs-121-to-131.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/5du0EG1E7uLsply8ygFAx9FR2TI/0/da"><img src="http://feedads.g.doubleclick.net/~a/5du0EG1E7uLsply8ygFAx9FR2TI/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/5du0EG1E7uLsply8ygFAx9FR2TI/1/da"><img src="http://feedads.g.doubleclick.net/~a/5du0EG1E7uLsply8ygFAx9FR2TI/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/01/15-biochemistry-mcqs-121-to-131.htmltag:blogger.com,1999:blog-8293761822509364699.post-951337921436973830Mon, 14 Jan 2008 05:24:00 +00002008-01-13T21:33:19.283-08:00homopolysaccarideserine proteaseacetyl co A carboxylaseanion gapmetabolic alkalosiscriggler najjar syndrome108) If the pH is 7.4 then the Hydrogen Ion concentration is <!--[if !supportLists]-->a. <!--[endif]-->40 mmol/ml <!--[if !supportLists]-->b. <!--[endif]-->7.4 <!--[if !supportLists]-->c. <!--[endif]-->50 <!--[if !supportLists]-->d. <!--[endif]-->None of the above Answer (a) 40 mmol/ml Reference: Harper 27th Edition Page 9 <!--[if !supportLists]-->Ä <!http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/nBFuLWkeqfU/14-biochemistry-mcqs-108-to-120.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/eG4OyCSDBxurqLDfVVqmmXVs8KQ/0/da"><img src="http://feedads.g.doubleclick.net/~a/eG4OyCSDBxurqLDfVVqmmXVs8KQ/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/eG4OyCSDBxurqLDfVVqmmXVs8KQ/1/da"><img src="http://feedads.g.doubleclick.net/~a/eG4OyCSDBxurqLDfVVqmmXVs8KQ/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/01/14-biochemistry-mcqs-108-to-120.htmltag:blogger.com,1999:blog-8293761822509364699.post-405396230339074921Tue, 08 Jan 2008 18:37:00 +00002008-01-08T10:40:12.836-08:00biochemistryHMP shuntpentose phosphate pathwaymcqs98 - Thiamine pyrophosphate , functions as an ________ sink that acts to stabilize the carbon ion adduct formed during the decarboxylation of pyruvate .answer is electron sink .----------------------------------------------------------------------99 - phosphoglycerate kinase converts 1 , 3 bisphosphoglycerate to 3 phosphoglycerate and forms an ATP .------------------------------------------------http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/A6TRzrOaFoo/13-biochemistry-mcqs-98-to-107.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/DnNh3rhCLRdL8n5LFDwnmgN6GLs/0/da"><img src="http://feedads.g.doubleclick.net/~a/DnNh3rhCLRdL8n5LFDwnmgN6GLs/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/DnNh3rhCLRdL8n5LFDwnmgN6GLs/1/da"><img src="http://feedads.g.doubleclick.net/~a/DnNh3rhCLRdL8n5LFDwnmgN6GLs/1/di" border="0" 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http://feedproxy.google.com/~r/HumanBiochemistryMcqs/~3/7hGaNhu8kM4/11-biochemistry-mcqs-76-to-86.htmlnoreply@blogger.com (doctor)0 <p><a href="http://feedads.g.doubleclick.net/~a/_K0otUbKD3V9CQvnCSUf6EpSK1s/0/da"><img src="http://feedads.g.doubleclick.net/~a/_K0otUbKD3V9CQvnCSUf6EpSK1s/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/_K0otUbKD3V9CQvnCSUf6EpSK1s/1/da"><img src="http://feedads.g.doubleclick.net/~a/_K0otUbKD3V9CQvnCSUf6EpSK1s/1/di" border="0" ismap="true"></img></a></p>http://ourbiochemistry.blogspot.com/2008/01/11-biochemistry-mcqs-76-to-86.htmlen-usnonadult