3301. Resorption of dental tissue is caused by_____________?
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A. Odontoclasts

B. Odontoblasts

C. Osteoclasts

D. Osteoblasts

3303. Which acid is formed in the citric acid cycle ?
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A. Oxaloacetic acid

B. Glutamic acid

C. None of the above

D. Nitric acid

3304. The thinnest epithelium of oral cavity is found in the____________?
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A. Sublingual mucosa (floor of mouth)

B. Lingual gingiva

C. Oral surface of lip

D. Buccal gingiva

3305. Neonatal lines are seen in_______________?
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A. Enamel of premolars

B. Enamel of permanent incisors

C. Dentin of all teeth, as if is formed first

D. Enamel of deciduous incisiors
3306. Shape of enamel rod is______________?
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A. Square

B. None of the above

C. Key hole or paddle shaped

D. Round

3307. Mutation in the oxidative enzymes (peroxisomes) could lead to_______________?
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A. Epidermolysis bullosa

B. Lebers neuropathy

C. Zellwegers syndrome

D. Gauchers disease

3308. The combination of main supporting enzyme is called______________?
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A. Apoenzyme

B. Coenzyme

C. Holoenzyme

D. Constitutive enzyme

3309. Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?
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A. MM fraction

B. MB fraction

C. BB fraction

D. Both MM and BB fraction

3310. The key enzyme of gluconeogenesis is______________?
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A. Phosphoenol pyruvate carboxykinase

B. Pyruvate carboxylase

C. Glucose 6 phosphatase

D. Fructose 1,6 disphosphatase

3311. Which papillae are completely keratinized______________?
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A. Foliate

B. Fungiform

C. Filiform

D. Circumvallate

3313. Which of the following structures is not of ectodermal origin_______________?
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A. Enamel lamellae

B. Enamel spindles

C. Enamel tufts

D. Hunter schreger bands

3314. Benzidine test is positive with the enzyme______________?
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A. Hydrolase

B. Peroxidase

C. Dehydrogenase

D. Cytochrome oxidase

3315. Fructose intolerance is to_____________?
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A. Fructose only

B. Fructose and glucose

C. Fructose and sucrose

D. Sucrose only

3316. An example of layses is_____________?
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A. Glutamine synthetase

B. Amylase

C. Cholinesterase

D. Fumarase
3317. Glucose 6 phosphatase deficiency is seen in______________?
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A. Pompers disease

B. McArdles syndrome

C. Downs syndrome

D. Von Gierkes disease
3318. The small ridges, perikymata, seen on facial surfaces of canines are the result of_____________?
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A. Interstitial development

B. Hypoplacification

C. Hyperplasia

D. Normal development
3319. Enzyme + coenzyme constitutes_____________?
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A. Apoenzyme

B. Proenzyme

C. Protoenzyme

D. Holoenzyme
3320. Megnesium is needed for the activity of which enzymes ?
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A. Phosphatase

B. Aldolase

C. Dismutase

D. ATPase
3324. Key glycolytic enzymes_____________?
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A. Glucose 1,6 diphosphatase

B. Phosphofructokinase

C. Hexokinase

D. Pyruvate kinase

3325. In resorption of roots of the primary teeth, the dental pulp_____________?
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A. Aids in formation of secondary dentin slowing down resorption

B. Becomes a fibrotic non-vital mass

C. Plays a passive role

D. Initiates resorption from the inner surface of roots

3326. One of the earliest symptoms of Vit. A deficiency is________________?
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A. Bitots spot

B. Xerophthalmia

C. Nyctalopia

D. Keratomalacia

3327. Tooth eruption is due to______________?
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A. Osteoclastic activity

B. Eruptive force

C. Exforliation of primary tooth

D. Proliferation of cells at crypt

3328. Long connective tissue papillae and keratinized epithelia are a feature of these parts of oral mucosa____________?
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A. Buccal andalveolar mucosa

B. Hard palate and gingiva

C. Hard and soft palate

D. gingiva and alveolar mucosa

3329. All are true about the striae of retzius except___________?
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A. Constitute the rest lines with in the enamel rods

B. They are areas of increased porosity

C. Allow the movement of water and small ions

D. Have high inorganic content
3330. The type of fibrous element in enamel is_____________?
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A. Tono filament

B. Keratin like fibre

C. Vimentin filament

D. Collagen fibre

3331. Enamel tufts are_______________?
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A. Thin tuft like structure extending from enamel surface of dentin enamel junction

B. Tuft like structure arising from dentin-enamel junction towards enamel surface

C. Odontoblastic processes extending into enamel

D. None of the above

3332. Following is not an external manifestation of enamel________________?
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A. Enamel tufts

B. Enamel lamella

C. Incremental lines of enamel

D. Enamel cuticle

3333. McArdles disease is due to the deficiency of_____________?
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A. Glucose 6 phosphatase

B. Glucose 1,6 phosphatase

C. Myophosphorylase

D. Glucose 1 phosphatase

3334. NADPH is generated by the action of____________?
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A. Glucose 6 phosphate dehydrogenase

B. Glucose 1 phosphate dehydrogenase

C. All of the above

D. Glucose 1,6 diphosphate dehydrogenase

3335. The major cells seen in gingiva are______________?
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A. Fibro blast

B. Merkel cells

C. Cementoblasts

D. Odontoblasts

3337. Incremental lines of Retzius appear_____________?
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A. As lines in the dentin running at right angles to the dentino-enamel junction

B. In enamel and follow the apposition pattern

C. As lines in the enamel running at right angles to the enamel surface

D. In dentin and follow the appositional pattern

3338. Enzymes involved in degradation of epinephrine_____________?
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A. Anticholinesterases

B. Cholinesterase

C. Catechol 0-transferase

D. Oxidases

3339. Specific stain for fat cells is___________?
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A. Cresyl violet

B. Carbol fuschin

C. Eosin & haematoxylin

D. Sudan III
3340. Step in HMP pathway requiring TPP_____________?
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A. Transaldolase

B. Transketolase

C. 6 phosphogluconate dehydrogenase

D. G6 PD

3341. All are true regarding the enamel spindles except____________?
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A. Terminate as rounded process

B. Produced by ameloblasts

C. Surrounded by inter prismatic enamel

D. Found in the region of cusps

3342. The mucous membrane of cheeks and lips_____________?
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A. None of the above

B. A & B are correct

C. It attached to orbicularis oris in lips

D. It attached to buccinator muscle in cheeks

3343. Stratum germinatum is_______________?
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A. Stratum basale

B. Stratum spinosum

C. Stratum basale and parabasal spinous cells

D. Stratum granulosum

3344. Elevated levels of serum glutamic oxaloacetic transaminase in indicative of______________?
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A. All of the above

B. Deficiency of glutamic acid

C. Liver disease

D. Deficiency of oxaloacetic acid

3346. Partially keratinized papilla is_______________?
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A. Foliate

B. Fungiform

C. Filiform

D. Circumvallate

3347. Enzymes stored in muscle is________________?
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A. SGOT

B. Alkaline phosphatase

C. CPK

D. SGPT

3348. Phosphofructokinase is the key enzyme of______________?
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A. Glycolysis

B. Beta oxidation

C. Gluconeogenesis

D. TCA cycle

3350. Glycogen breakdown leads to formation of______________?
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A. Glycoprotein

B. Lactic acid

C. Glucose & Lactic acid

D. Glucose