3551. To keep blood PH at 7.4 the HCO3 : H2CO3 ratio should be_____________?
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A. 30:01:00

B. 15:01

C. 20 : 1

D. 1:01

3552. FSH, LH, TSH acts through_________________?
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A. Cyclic AMP

B. Calcium release

C. Adenosine cyclate

D. Cyclic GMP

3553. Restriction endonuclease cleaves______________?
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A. Polypeptide

B. SIngle stranded RNA

C. Double stranded DNA

D. SIngle stranded DNA

3554. Maxillary primary cuspid enamel completion takes place at______________?
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A. 6 months in utero

B. 6 months after birth

C. 9 months after birth

D. 9 months in utero

3555. Mesiodistal width is more than cervico- incisal length of crown in_____________?
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A. Permanent maxillary canines

B. Permanent mandibular lateral incisors

C. Decidous maxillary central incisors

D. Permanent central incisors

3556. The product of oxidation of odd chainfatty acids is______________?
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A. Propionyl CoA

B. Fumaryl CoA

C. Malonyl CoA

D. Aceto acetyl CoA

3557. The abundant glycoprotein in the basement membrane and has binding domain for both ECM and cell-surface receptor is______________?
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A. E Cadherins

B. Tenascin

C. Fibronectin

D. Laminin
3558. Adipose tissue releases free fatty acids in the________________?
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A. Resting state

B. All of the above

C. Fasting state

D. Active state

3559. In anxious parent calls you that her 5- month -old child has still no teeth in his mouth then you should_____________?
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A. Tell her that it is normal at this age

B. Call and do radiographic survey

C. Child has retarded growth

D. Systemic problem

3560. On complete hydrolysis of DNA we will get all the following except______________?
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A. Phosphoric acid

B. Deoxy pentose sugar

C. Adenosine

D. Purine bases

3561. Somatomedin mediates________________?
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A. Decreased rate of glucose uptake by cells

B. Lipolysis

C. Gluconeogenesis

D. Deposition of chondroitin sulfate
3562. The portion of DNA in Which RNA polymerase binds and starts transcription is called______________?
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A. Promoter region

B. Operator

C. Terminator

D. Anti terminator

3563. The precursor of testosterone is_____________?
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A. Aldosterone

B. Methyl testosterone

C. Pregnenolone

D. Estrogen

3564. Which of the following process in involved in conversion of DNA to RNA___________?
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A. Conjugation

B. Transcription

C. Transduction

D. Translocation

3565. Enzyme regulating the conversion of ethanol to acetaldehyde________________?
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A. Alcohol dehydrogenase

B. Catalase

C. Enolase

D. Acetaldehyde dehydrogenase

3566. The usual order of appearance of the primary teeth in the mouth is____________?
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A. Central incisors, first molars, lateral incisors, second molars, canines

B. Central incisors, lateral incisors, canines, second molars, first molars

C. Central incisors, lateral incisors, first molars second molars, canines

D. Central incisors, lateral incisors, first molars canines, second molars
3567. The eruption are of maxillary permanent lateral incisor is_____________?
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A. 8-9 years

B. 6-7 years

C. 10-11 years

D. 8-9 months

3568. The lipid, which acumulates in fatty liver, is_______________?
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A. Triglycerides

B. Lipoprotein

C. Cholesterol

D. FFA

3569. Which cell organelle contains DNA_____________?
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A. Endoplasmic reticulum

B. Golgi body

C. Mitochondrion

D. Centriole

3570. How many pulpal horns are there in the mandibular second primary molar ?
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A. 3

B. 4

C. 5

D. 6

3571. The fuel value of fat is____________?
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A. 9

B. 4

C. 5

D. 7

3572. Transcription is the synthesis of____________?
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A. Single stranded complimentary copy of DNA

B. Complimentary copy of RNA

C. COmplimentary copy of rRNA

D. Double stranded complimentary copy of DNA

3573. Hyponatremia is defined as a serum Na+ level ____________________?
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A. >135 mmol/L

B. < 135 mmol/L

C. < 160 mmo/L

D. < 100 mmo/L

3574. Kinase requires_______________?
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A. Mg++

B. MN++

C. Inorganic phosphate

D. Cu++

3575. Which among the following is NOT a common finding of the decidous dentition ?
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A. Shallow overjet and overbite

B. Tight contacts, absence of spacing

C. Ovoid arch form

D. Flush terminal plane

3576. Roots of primary and secondary teeth are different in that the primary roots are more divergent and flaring. The other difference _____________?
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A. Primary roots resorb more easily

B. Primary roots show less a accessory and lateral canals

C. Primary roots are shorter

D. None of the above

3577. The antibacterial substance present in tears which acts by splitting cell wall components is____________?
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A. Betalysine

B. Lactoperoxidase

C. Lysozyme

D. Penicillin

3578. NADPH is required for________________?
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A. Glycogenolysis

B. Fatty acid synthesis

C. Glycolysis

D. Gluconeogenesis

3579. The most important role of cholesterol is_____________?
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A. It is a precursor of polyunsaturated fatty acids

B. It is a component of cell membrane

C. None of the above

D. It stores up energy

3580. Which of the following is most important content of diet ?
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A. Vitamin

B. Minerals

C. Protein

D. Water

3581. Which statement is correct about decidous dentition?
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A. The crowns of primary dentition are more yellowish than permanent

B. The primary dentition is initiated at 10<sup>th</sup> month in uterus

C. Calcification of maxillary primary first premolar is completed at birth

D. Mandibular first molar erupts at one and half years of age
3582. The first evidence of calcification of primary anterior teeth begins approximately between ______________?
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A. 17 to 20 weeks in utero

B. 14 to 17 weeks in utero

C. 9 to 12 weeks in utero

D. 6- to 9 weeks in utero

3583. Which of the following is inclusion of cytoplasm ?
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A. Glycogen

B. Golgi body

C. Endoplasmic reticulum

D. Ribosome

3584. Among the difference between teeth in the decidous and the permanent dentition is that_____________?
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A. Buccal surfaces of the permanent molars are flatter

B. Root trunks of decidous teeth are larger compared with their overall root lengths

C. Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengths

D. Cervical ridges are more pronounced in permanent molars

3585. Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________?
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A. All teeth except third molars

B. 1,2,4,5,6,7 in all quadrants

C. 1,2,6 in all quadrants

D. Only molars

3586. The primary lateral incisors begin to calcify about the_____________?
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A. 41/2 month in utero

B. 4th month in utero

C. 5th month in utero

D. 4th month of life

3587. The lipoprotein particles that have the highest percentage concentration of cholesterol is_______________?
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A. LDL (Low density lipoprotein)

B. VLDL (Very low density lipoprotein)

C. HDL (High density lipoprotein)

D. Chylomicron

3588. Fatty aids help in synthesis of all except____________?
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A. Fat

B. Cholesterol

C. Ketone bodies

D. Glucose
3589. In the majority of situations, the first decidous tooth to erupt is the______________?
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A. Mandibular first molar

B. Maxillary central incisor

C. Maxillary second molar

D. Mandibular central incisor
3590. Alkaptonuria an inherited metabolic disorder is due to the deficiency of____________?
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A. Cystathionase

B. Tyrosine transaminase

C. Pheylalanine hydroxylase

D. Homogentisate oxidase
3591. Cell membrane consists of_________________?
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A. Lipids and proteins

B. Lipids only

C. None of the above

D. Protein only

3592. Transverse ridge is prominent on occlusal surface of which of the following decidous teeth ?
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A. Maxillary second molar

B. Mandibular second molar

C. Maxillary first molar

D. Mandibular first molar
3593. In ECF main electrolyte is_______________?
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A. Cl

B. K+

C. Na+

D. Proteins

3594. Which of the following is the best site of absorption of calcium ?
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A. Middle segment of small intestine

B. Ascending colon

C. Ileum

D. Proximal segment of small intestine
3595. Eruption date of decidous maxillary 2nd molar is ______________?
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A. 24 months

B. 18 months

C. 20 months

D. 28 months
3596. The sharpest cusp of primary first molar tooth is____________?
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A. Mesiobuccal

B. Distobuccal

C. Distolingual

D. Mesiolingual
3597. The crowns and roots of primary molar at their cervical portions are more____________?
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A. Buliker anteroposteriorly

B. Bulkier mesiodistally

C. Slender mesiodistally

D. Slender anteroposteriorly

3598. Acetyl CoA is produced from which fuel sources_____________?
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A. Carbohydrate

B. Amino acids

C. All of the above

D. Lipid

3599. Unsaturated fatty acids are converted to______________?
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A. Cell membrane lipid

B. Saturated fatty acid

C. Cholesterol

D. Prostaglandins
3600. The pulp of first primary molar contains________________?
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A. Two pulp horn and three root canal

B. Four pulp horn and three root canal

C. Three pulp horn and three root canal

D. Two pulp horn and two root canal