3802. Beri-beri is caused due to the deficiency of______________?
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A. Riboflavin

B. Pyridoxine

C. Ascorbic acid

D. Thiamine
3803. The following is not a carrier protein________________?
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A. Cerruloplasmin

B. Transferrin

C. Haptoglobulin

D. Transcobalamine

3804. Nutrients are mainly absorbed in______________?
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A. Stomach

B. Small intestine

C. Large intestine

D. Liver

3805. Temporo mandibular ligament is attached to _____________?
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A. Posterior aspect of TMJ

B. Mandibular condyle

C. Lateral aspect of TMJ

D. Coronioid process

3807. Vitamin D_____________?
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A. Synthesis is regulated at the reaction catalyzed by 15-hydroxylase

B. Along with PTH, increases calcium resorption from bone

C. Deficiency on adults leads to rickets

D. Absorption requires bile pigments

3808. Peristalsis involves coordinated contraction and relaxation______________?
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A. Dorsal and ventral to food bolus

B. Lateral and medial to food bolus

C. Above and below the food bolus

D. None of the above

3809. Production of bile takes place in____________________?
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A. Hepatic duct

B. The gall bladder

C. Hepatocytes

D. Kupffer cells

3810. Most of vitamin B12 in the body is stored as_____________?
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A. Hydroxy B12

B. None of the above

C. Cyano cobalamine

D. Methyl B12
3811. Vitamin K____________?
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A. Prevention of capillary fragility

B. Inhibition of antithrombin

C. Helps in formation of prothrombin

D. Stimulation of hematopoiesis in red bone marrow

3812. Which is the by product of the urea cycle_______________?
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A. Aspartate

B. Ornithine

C. Fumarate

D. Succinate

3813. Forward moment of mandible is done by_________?
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A. Temporalis anterior fibers

B. Temporalis- posterior fibers

C. Lateral pterygoid

D. Medial pterygoid

3814. In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?
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A. Distal marginal ridge of mandibular 2ndmolar

B. Mesial fossa of mandibular 1<sup>st</sup> molar

C. Distal marginal ridge of mandibular 1st premolar

D. Distal fossa of mandibular 2ndpremolar
3816. Vitamin B12 is_______________?
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A. Cyano cobalamine

B. A fat soluble vitamin

C. Intrinsic factor of castle

D. Extrinsic factor of castle
3817. Malonyl aciduria is seen in deficiency of_____________?
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A. Riboflavin

B. Folic acid

C. B12

D. Pyridoxine

3818. The duodenum secretes a hormone which has following effects except_______________?
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A. Increases gastric motility

B. Leads to meager flow of pancreatic juice rich in enzymes

C. Causes gall bladder to contract and sphincter of oddi to relax

D. Causes copious pancreatic juice rich in bicarbonate and poor in enzymes

3819. Biuret test is confirmatory test for_______________?
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A. Carbohydrate

B. None of the above

C. Protein

D. Fat

3820. Aniacinosis results in______________?
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A. Perleche

B. Nyctalopia

C. Beri beri

D. Pellagra
3821. Tocopherol is associated with____________?
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A. Vitamin K

B. Vitamin D

C. Vitamin E

D. Vitamin A

3822. Gastric secretion is stimulated by all the following except_____________?
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A. Gastrin

B. Secretin

C. Gastric distension

D. Vagal stimulus

3823. A mutation that converts an amino acid codon to a stop codon is a_____________?
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A. Frame shift mutation

B. Nonsense mutation

C. Silent mutation

D. Transversion

3824. The final sugars in intestinal chyme are____________?
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A. Glucose & fructose

B. Ribose & xylulos

C. Ribose & mannose

D. Xylulose & fructose

3825. ALbumin is synthesized by_____________?
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A. Spleen

B. Kidney

C. Muscle

D. Liver
3826. Specific disease caused by vitamin B1 deficiency_______________
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A. Angular cheilitis

B. Pellagra

C. Peripheral polyneuritis

D. Megaloblastic anemia

3827. Following is non-essential amino acid_______________?
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A. Proline

B. Phenylalanine

C. Threonine

D. Tryptophan

3828. Basically TMJ is a_____________?
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A. Hinge and axis joint

B. Ball and socket joint

C. Synovial joint

D. Diartmodal joint
3829. Cereals are deficient in_____________?
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A. Vitamin B complex

B. Vitamin C

C. Iron

D. Calcium

3830. Thiamine deficiency causes decreased energy production because____________?
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A. It is required for the process of transmination

B. It is co-enzyme for pyruvate dehydrogenase

C. It is co-factor in oxidative reduction

D. It is co-enzyme for transketolase in pentose phosphate pathway

3831. Rhodopsin deficiency is chiefly associated with________________?
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A. Rickets

B. Vitamin D deficiency

C. Vitamin A deficiency

D. Scurvy

3832. Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during________________?
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A. Rest position

B. Protrusive contacts

C. Laterotrusive contacts

D. Centric occlusion
3833. Digestion of proteins is initiated by________________?
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A. Pepsin

B. Amylase

C. Chymotrypsin

D. Sucrase

3835. which of the following secretions has a very high pH________________?
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A. Bile in gall bladder

B. Gastric juice

C. Saliva

D. Pancreatic juice
3837. Which of the following is not a structural element of the temporomandibular joint ?
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A. Capsular ligament

B. Articular disc

C. Joint cavities

D. Sigmoid notch
3838. Biotin is required for the activity of_______________?
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A. Phosphohexose isomerase

B. Succinate thiokinase

C. Pyruvate carboxylase

D. Lactate dehydrogenase

3839. 1st clinical sign of vitamin A deficiency is_____________?
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A. night blindness

B. bitots spots

C. xerostomia

D. conjunctival xeroses
3841. Albumins and globulins are ________ proteins?
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A. Lactalbumin

B. Prolamines

C. Peptones

D. Simple
3842. Bilirubin is conjugated with which of the following ?
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A. Acetyl CoA

B. Glucuronic acid

C. Glycine

D. Glutamine

3843. Articular disc of TMJ is__________?
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A. Thickest posteriorly

B. Narrow in the centre

C. All of the above

D. Strengthened by lateral pterygoid

3844. Most potent stimulus for secretin is______________?
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A. Protein

B. Dilattion of intestine

C. Fat

D. Acid chyme
3845. Vitamin C effects_________________?
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A. Maturation of procollagen

B. Formation of osteoid matrix

C. Calcification of osteoid

D. Both A and B
3846. Pernicious anaemia occurs in___________?
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A. Vit D deficiency

B. Vit B1 deficiency

C. Vit C deficiency

D. Vit B12 deficiency
3847. Cytochromes are_____________?
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A. Iron-porphyrin proteins

B. Metal containing flavoproteins

C. Riboflavin containing nucleotides

D. Pyridine nucleotides

3848. In which of the following areas is the alveolar process the thinnest_____________?
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A. Lingual to the maxillary central incisors

B. Lingual to the maxillary canines

C. Buccal to the mandibular central incisors

D. Lingual to the mandibular first molar

3849. Glutamine replaced by valine in sckle cell anaemia is characterized________________?
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A. Degradation of beta chain

B. Missense mutation of beta chain

C. Non Sense mutation of beta chain

D. Deletion of beta chain

3850. Articular disc of tmj receives insertion from which muscle______________?
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A. Lateral pterygoid

B. Massetor

C. Medial pterygoid

D. Temporalis