Competitive Medical MCQs – Up To Date Vitamins ( Biochemistry ) MCQs
This post is comprising of latest ” Vitamins ( Biochemistry ) MCQs – Latest Competitive Medical MCQs “. Here you’ll get latest Software engineering mcqs for written test, interview with answers. If you want to improve your knowledge regarding Software engineering then read these mcqs of Design of Steel Structures.
Latest Medical MCQs
By practicing these MCQs of Vitamins ( Biochemistry ) MCQs – Latest Competitive Medical MCQs , an individual for exams performs better than before. This post comprising of mechanical engineering objective questions and answers related to “Vitamins ( Biochemistry ) Mcqs “. As wise people believe “Perfect Practice make a Man Perfect”. It is therefore practice these mcqs of Software engineering to approach the success. Tab this page to check “Vitamins ( Biochemistry )” for the preparation of competitive mcqs, FPSC mcqs, PPSC mcqs, SPSC mcqs, KPPSC mcqs, AJKPSC mcqs, BPSC mcqs, NTS mcqs, PTS mcqs, OTS mcqs, Atomic Energy mcqs, Pak Army mcqs, Pak Navy mcqs, CTS mcqs, ETEA mcqs and others.
Latest Vitamins ( Biochemistry ) Mcqs
The most occurred mcqs of Vitamins ( Biochemistry ) in past papers. Past papers of Vitamins ( Biochemistry ) Mcqs. Past papers of Vitamins ( Biochemistry ) Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Vitamins ( Biochemistry ) Mcqs. The Important series of Vitamins ( Biochemistry ) Mcqs are given below:
Which of the following combination is correct ?
A. Biotin-CO2
B. Thiamine – Acyl CoA
C. ATP-Hydrogen
D. All of the above
In the body, metabolism of 10 g of protein would produce approximately____________?
A. 410 Kcal
B. 41 Kcal
C. 1 Kcal
D. 4100 Kcal
Alkaptonuria an inherited metabolic disorder is due to the deficiency of____________?
A. Homogentisate oxidase
B. Pheylalanine hydroxylase
C. Cystathionase
D. Tyrosine transaminase
Colloidal osmotic pressure of plasma is by___________?
A. Albumin
B. Globulin
C. Fibrinogen
D. Prothrombin
The daily requirement of protein for the adults is_________________?
A. 120 gms
B. 60 gms
C. 6 gms
D. 250 gms
The fastest moving fraction of protein in serum When subjected to paper electrophoresis is_____________?
A. Albumin
B. Beta Globulin
C. Alpha 1 globulin
D. Gamma Globulin
Most common non protein nitrogenous fraction of blood_____________?
A. Uric acid
B. Urea
C. Urobilinogen
D. Creatinin
Proteins are linear polymers of amino acids, They fold into compact structures Sometimes these folded structures associate to form homo or hetero dimers Which one of the following refers to this associated form ?
A. Molecular aggregation
B. Denatured state
C. Precipitation
D. Quaternary structure
The protein rich in basic amino acids, which functions in the packaging of DNA is chromosomes is______________?
A. Histone
B. Fibrinogen
C. Hyaluronic acid binding protein
D. Collagen
Which of the following is not a post transcriptional modification of RNA ?
A. 5′ capping
B. Splicing
C. 3′ polyadenylation
D. Glycosylation
Thyroxine and catecholamines are derived from_____________?
A. Tyrosine
B. Alanine
C. Tryptophan
D. Leucine
In Hartnup’s disease _______ is excreted in the urine?
A. Glutamine
B. Ornithine
C. Tryptophan
D. Phenylalanine
Which of the following is not a part of hemoglobin molecule___________?
A. Vinyl groups
B. Pyrrole rings
C. Histidine
D. Ferric ions
Proteins are absorbed from GIT as_____________?
A. Amino acids
B. Peptones
C. Peptides
D. All of the above
Which of the following is a precursor of protoporphyrin_______________?
A. Leucine
B. Alanine
C. Histidine
D. Glycine
Cytochromes are_____________?
A. Riboflavin containing nucleotides
B. Pyridine nucleotides
C. Metal containing flavoproteins
D. Iron-porphyrin proteins
Heme in haemoglobin is____________?
A. Surrounded by non polar environment
B. Between Helix C and D
C. Bonded to E7 histidine
D. Protoporophyrin IX
Which of the following is correct about breakdown of hemoglobin (Hb)_____________?
A. Heme→Hb→Biliverdin→Urobilinogen
B. Hb→Heme→bilirubin→Urobilinogen
C. Hb→Heme→Bilverdin→Uro bilinogen
D. Hb→Heme→bilirubin→Urobilinogen→Biliverdin
Creatine is formed metabolically from______________?
A. Phenylalanine
B. Arginine
C. Tryptophan
D. Histidine
Major source of ammonia in the kidney is___________?
A. Aspartate
B. Urea Aspartate
C. Glutamine
D. Glutamate
Key enzyme in urea synthesis is____________?
A. Arginase
B. Carbamyl synthetase
C. Urease
D. Ornithine
Ammonia is detoxified in liver to form____________?
A. Glutamine
B. Uric acid
C. Creatinine
D. Urea
A small Ca+2 binding protein that modifies the activity of many enzymes and other proteins in response to changes of Ca+2 concentration is known as______________?
A. Collagen
B. Calmodulin
C. Cycline
D. Kinesin
Decarboxylation of which of the following amino acids results in formation of a vasodilator ?
A. Arginine
B. Valine
C. Histidine
D. Glutamic acid
A mutation that converts an amino acid codon to a stop codon is a_____________?
A. Nonsense mutation
B. Silent mutation
C. Transversion
D. Frame shift mutation
Histidine is converted to histamine by_____________?
A. Hydroxylation
B. Transamination
C. Decarboxylation
D. Reduction
ALbumin is synthesized by_____________?
A. Liver
B. Muscle
C. Kidney
D. Spleen
Which of the following amino acids is quickly converted to tyrosine ?
A. Glycine
B. Arginine
C. Phenylalanine
D. Leucine
Synthesis of protein occurs on__________________?
A. Nucleus
B. Poly ribosomes
C. Mitochondria
D. Golgi bodies
Which of the following is present in the plasma but absent in the serum ?
A. Globulin
B. Albumin
C. Lecithin
D. Firbinogen
The amino acid, which is used is the estimation of collagen is_____________?
A. Hydroxyproline
B. Lysine
C. Proline
D. Glycine
The amino acid from which niacin is synthesized is______________?
A. Theronine
B. Tyrosine
C. Tryptophan
D. Histidine
Hydroxylation of proline require the following except____________?
A. O2
B. Fe+2
C. Ascorbic acid
D. Succinate
The process by which a base sequence of messenger RNA is synthesized (by a RNA polymerase) on a template of complementary DNA is called______________?
A. Transcription
B. Translation
C. Transduction
D. Translocation
The major fuel for the brain after several weeds of starvation______________?
A. Fatty acid
B. Glucose
C. Beta hydroxy butyrate
D. Glycerol
Carbohydrate MCQs ( Biochemistry )
Non essential amino acids are not_____________?
A. Forming part of the proteins
B. Used by the body
C. Required in the diet
D. Absorbed in the intestines
The following is false about tryptophan_____________?
A. Non-essential amino acid
B. Involved in niacin synthesis
C. Involved in serotonin synthesis
D. Involved in melatonin in synthesis
Which of the following amino acid is involved in gluconeogenesis______________?
A. Valine
B. Glycine
C. Cysteline
D. All of the above
Glycine is present in____________?
A. Glutathione
B. Hemoglobin
C. Purines
D. Creatine
E. All of the above
Quaternary structure of protein is_____________?
A. The arrangement sequence of amino acids in the polypeptide chain
B. Inter relation of amino acids in 2 polypeptide chains
C. Inter relation between amino acids in a single polypeptide chain
D. The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains
Which of the following is a derived a derived protein_____________?
A. Prolamines
B. Peptones
C. Protamines
D. Lactalbumin
All are genetic amino acid deficiency disease except___________?
A. Alkaptonuria
B. Phenyl ketonuria
C. Homocystinuria
D. 6alactosemia
Mannose 6 phosphate containing freshly synthesized proteins are directed to_____________?
A. Mitochondria
B. Lysosomes
C. Nucleus
D. Golgi apparatus
Glutamine replaced by valine in sckle cell anaemia is characterized________________?
A. Degradation of beta chain
B. Missense mutation of beta chain
C. Non Sense mutation of beta chain
D. Deletion of beta chain
All are true about glutathione except ?
A. It conjugates xenobiotics
B. It converts hemoglobin to methemoglobin
C. It is a tripetide
D. It scavenges free radicals and superoxide ions
The class of amino acids that contains only non essential amino acids is_______________?
A. Acidic
B. Aromatic
C. Basic
D. Branched chain
The nitrogen content in 50 gm of a typical dietary protein is most likely to be_____________?
A. 10 gm
B. 8 gm
C. 5 gm
D. 16 gm
The number of essential amino acid are______________?
A. 12
B. 8
C. 6
D. 16
The amino acid residue having animino side chain is____________?
A. Tyrosine
B. Histidine
C. Lysine
D. Proline
The primary role of chaperones is to help in______________?
A. Protein degradation
B. Protein synthesis
C. Protein denaturation
D. Protein folding
Argentaffinoma is characterized by excess excretion of_____________?
A. 5- Hydroxy indole acetate
B. Phenyl lactate
C. 3- Hydroxy phenyl pyruvate
D. Phenyl acetate
Urea is formed in_____________?
A. Kidney
B. Brain
C. Liver
D. Intestine
The following is not a carrier protein________________?
A. Transferrin
B. Cerruloplasmin
C. Transcobalamine
D. Haptoglobulin
False statement about haemoglobin structure________________?
A. Hb has 2 polypeptide chains
B. Hb structurally similar to myoglobin
C. Iron is present in ferrous state
D. Ferrous ions are in porphyrin rings
At PH 7 the binding of 2,3 DPG to hemoglobin occurs at which site ?
A. Carboxy terminal
B. Sulphydryl group
C. Amino terminal
D. Histidine
Iron is complexed in haemoglobin to_______________?
A. Isoleucine
B. Histidine
C. Leucine
D. Valine
Urea is produced by the enzyme_____________?
A. Uricase
B. Urease
C. Arginase
D. Glutaminase
Urinary protein is detected by______________?
A. Hay’s test
B. Barfoed test
C. Boiling test
D. Ehrlich’s test
Which is the by product of the urea cycle_______________?
A. Succinate
B. Aspartate
C. Ornithine
D. Fumarate
Amino acids excreted in the urine in cystinosis______________?
A. Ornithine
B. Cystine
C. Arginine
D. Lysine
E. All of the above
Albinism is a genetic disease that results in incomplete metabolism of______________?
A. Cystine
B. Histidine
C. Tyrosine
D. Alanine
All of the following are globular proteins except_______________?
A. Albumin
B. Prolamines
C. Globulin
D. Myosin
Which one of the following amino acids is purely ketogenic ?
A. Phenylalanine
B. Proline
C. Isoleucine
D. Leucine
Collagen is rich in_____________?
A. Alanine and glycine
B. Glutamate and glycine
C. Proline and glycine
D. Glutamate and proline
Digestion of proteins is initiated by________________?
A. Sucrase
B. Amylase
C. Chymotrypsin
D. Pepsin
The nitrogen of the body is supplied by______________?
A. Glucose
B. Proteins
C. Triacyl glycerol
D. Lipids
Alkaptonuria, an inherited metabolic disorder of L0tyrosine metabolism is due to lack of_____________?
A. Tyrosine transaminase
B. Parahydroxy phenyl pyruvate Hydroxylase
C. Homogentisate oxidase
D. Tyrosine oxidase
One of the following is not an amino acid______________?
A. Hydroxy proline
B. Glycine
C. Glutamic acid
D. Choline
Precursor of melanin is________________?
A. Tryptophan
B. Phenylalanine
C. Tyrosine
D. Methionine
The reducing end of glutathione, the amino acid is_________________?
A. Glycine
B. Lycie
C. Leucine
D. Valine
Following are the essential amino acid______________?
A. Phenylalanine, Tryptophan lysine
B. Phenylalanine, Valine, Glycine
C. Phenylalanine, Arginine Methinonine
D. Histidine, Glutamine, Valine
The process of transfer of information from the RNA to the proteins is called______________?
A. Transcription
B. Translation
C. Mutation
D. Conjugation
Following is non-essential amino acid_______________?
A. Tryptophan
B. Proline
C. Phenylalanine
D. Threonine
One of the following is nonessential amino acid______________?
A. Tyrosine
B. Methionine
C. Valine
D. Cystine
Aromatic ring is present in_____________?
A. Glycine
B. Arginine
C. Phenylalanine
D. Phenylalanine, Glycine
In maple syrup urine disease the amino acids excreted in the urine are______________?
A. Isoleucine
B. Leucine
C. Valine
D. All of the above
Indole ring is present in______________?
A. Tryptophan
B. Methionine
C. Valine
D. Histidine
Biuret test is confirmatory test for_______________?
A. Protein
B. Carbohydrate
C. Fat
D. None of the above
Albumins and globulins are ________ proteins?
A. Simple
B. Prolamines
C. Peptones
D. Lactalbumin
Tertiary structure of protein is maintained by all except______________?
A. Hydrophobic
B. H2 bond
C. Ionic bond
D. Disulphide bond
E. None of the above