PPSC Chemistry Full Book Test With Answers

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PPSC Chemistry Full Book Test

Sr. # Questions Answers Choice
1 Ingold's isoprence rule states that in terpenoids isopren units are joined. Head to tail Head to head Tail to tail In a random order
2 Organic substance responsible for the smell of the Flowers etc are grouped together in chemistry as. Perfumes Terphenoids Flavonoids Alkaloids
3 Biogical role of nucleic acid doe snot include Genetic continuity Protein syathesis Hybridization Mutation
4 The binding site on ribosome t-RNA and m-RNA is provided by Polysome Ribosomal RNA Codone DNA
5 One arm of each t-RNA terminates in the base sequence. UGU GGC ACT CCA
6 Codon for amino acid glycinc is not represented by base pair GCA GGC GGA GGU
7 Hydrogen bons holding the strand to nucleic acids are formed between Sugar and base units Base unit Sugar ane phosphate units Sugar units
8 The process of transfer of genetic message from DNA to m-RNA is known as Refplication Translation Transcription Transference
9 The formation of daughter DNA's from parent DNA is called. Transalation Transcription Reproduction Replication
10 The number of hydrogen bond present in G -C pair is 1 2 4 3
11 RNA is involved int eh synthesis of Protein Nucleic acid Carbohydrates Fats
12 The number of hydrogen bonds boding A _____ T pair is 1 2 3 4
13 Cytosine a pyrimidine base pairs with Guanine Thymine Adenine Any of these
14 The unit of nucleic acid having base sugar combination is called. Nucliec acid Nucleoside Nucleotide None of these
15 The sugar present in RNA is D- ribose D-Arabinose D-Glucose Deoxyribose
16 The sugar present in DNA is D- Ribose D-Glucose 2- Doxy D-Ribose 3-Deoxy D-ribose
17 The one which is not a purine base Cytosine Guanine None of these Adenine
18 Which of the following is not a pyrimidine base. Uracil Thymine Cytosine Guanine
19 The base which in not present in DNA is Adenine Guanine Thymine Cytosine
20 Complete hydrolysis of nucleotide result in the formation of. Heterocyclic bases A pentose A phosphate ion All of these
21 Hydrolysis of nucleoprotein result in the formation of. Proteins Nucleic acids Both A and B They do not hydrolyse
22 Urea an enzyme used to estimate urea is a Hydrolytic enzyme Oxidative enzyme Reductive enzyme Iso me rising enzyme
23 An stereospecific enzyme in one which catalyses Formation of one stercolsomer Reaction of one stereoisomer only Both of these None of these
24 Co enzyme cna be separated from enzyme by Precipitation Dalysis Hydrolysis Distillation
25 Apoenzyme is Hydrolytic enzyme Oxidative enzyme Coenzyme Protein part of enzyme after removal of coenzyme
26 Enzymatic action is heat at a fixed Temparature pH Both of these None of these
27 Oxidative enzymes are responsible for Biological processes Biological oxidation Biological hydrolysis Biological isomerisation
28 Enzymes are Complex non living compunds Laving organisms Complex protein molecules Bacterial colonies
29 Proteins have characteristics Melting poirn t Iso electric point Boiling point All of these
30 Putrefaction is Hydrolysis of proteins Reduction of proteins Bacterial oxidation of proteins All of these
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