medical MCQs – Page 167

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

3321. Specific gravity of enamel is_____________?
0

A. 2.3

B. 2.8

C. 3.8

D. 4.8

3322. When the prosthetic group of an enzyme is an inorganic ion, it is called a_____________?
0

A. Apoenzyme

B. Holoenzyme

C. Coenzyme

D. Cofactor

3323. Dendritic cell located in the stratified squamous keratinizing epithelium of the oral cavity include_____________?
0

A. Mast cells

B. Keratinocytes

C. Melanocytes

D. Myoepithelila cells

3324. Key glycolytic enzymes_____________?
0

A. Glucose 1,6 diphosphatase

B. Phosphofructokinase

C. Hexokinase

D. Pyruvate kinase

3325. In resorption of roots of the primary teeth, the dental pulp_____________?
0

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________________?
0

A. Bitots spot

B. Xerophthalmia

C. Nyctalopia

D. Keratomalacia

3327. Tooth eruption is due to______________?
0

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____________?
0

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___________?
0

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_____________?
0

A. Tono filament

B. Keratin like fibre

C. Vimentin filament

D. Collagen fibre

3331. Enamel tufts are_______________?
0

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________________?
0

A. Enamel tufts

B. Enamel lamella

C. Incremental lines of enamel

D. Enamel cuticle

3333. McArdles disease is due to the deficiency of_____________?
0

A. Glucose 6 phosphatase

B. Glucose 1,6 phosphatase

C. Myophosphorylase

D. Glucose 1 phosphatase

3334. NADPH is generated by the action of____________?
0

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______________?
0

A. Fibro blast

B. Merkel cells

C. Cementoblasts

D. Odontoblasts

3336. In the tongue bitter taste is more perceived at_____________?
0

A. Sides

B. Tip

C. Front

D. Back

3337. Incremental lines of Retzius appear_____________?
0

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_____________?
0

A. Anticholinesterases

B. Cholinesterase

C. Catechol 0-transferase

D. Oxidases

3339. Specific stain for fat cells is___________?
0

A. Cresyl violet

B. Carbol fuschin

C. Eosin & haematoxylin

D. Sudan III

3340. Step in HMP pathway requiring TPP_____________?
0

A. Transaldolase

B. Transketolase

C. 6 phosphogluconate dehydrogenase

D. G6 PD

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