3653. Within the RBC hypoxia stimulates glycolysis by which of the following regulating pathways ?
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A. Hypoxia inhibits hexokinase

B. Activation of the regulatory enzymes by high PH

C. Hypoxia stimulates pyruvate dehydrogenase by increased, 2, 3DPG

D. Hypoxia stimulates release of all glycolytic enzymes from Band 3 on RBC membrane
3654. In all the following RNA participates directly except________________?
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A. Post transcriptional modification

B. Splicing

C. Post translation modification

D. DNA replication

3655. End product of purine metabolism is______________?
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A. Uric acid

B. Creatinine

C. Phosphates

D. Xanthine

3656. The last primary tooth to be replaced by a permanent tooth is usually the_____________?
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A. Maxillary canine

B. Mandibular canine

C. Mandibular second molar

D. Maxillary second molar

3657. B-oxidation of odd-chain fatty aids produce_______________?
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A. Malonyl CoA

B. Acetyl CoA

C. Propionyl CoA

D. Succinyl CoA

3658. Which base is not found in DNA________________?
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A. Adenine

B. Uracil

C. Guanine

D. Cytosine

3660. True about prostaglandins is______________?
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A. All are true

B. Some require C-AMP for their action

C. Short acting

D. Present in many tissues

3661. Ketone bodies are by products of metabolism of_____________?
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A. Protein

B. Carbohydrate

C. Fat

D. All of the above

3662. The reducing equivalent for fatty acid synthesis is derived form____________?
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A. Urea cycle

B. Pentose phosphate pathway

C. Krebs cycle

D. Glycolysis

3664. Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________?
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A. Inferior and lingual

B. Superior and lingual

C. Inferior and facial

D. Superior and facial

3665. High content of cholesterol is present in_______________?
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A. Coconut oil

B. Hydrogenated fat

C. Egg yolk

D. Ghee (unsaturated)

3666. The normal level of serum cholesterol is_______________?
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A. 80-250 mgs/100 ml

B. 150-250 mgs/100 ml

C. 100-140 mgs/100 ml

D. 260-360 mgs/100 ml

3667. Colloidal osmotic pressure of plasma is by___________?
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A. Albumin

B. Prothrombin

C. Fibrinogen

D. Globulin

3669. Insulin caused lipogenesis by all except____________?
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A. Increasing acetyl-CoA corboxylase activity

B. Inhibits Pyruvate dehydrogenase

C. Increases the transport of glucose in to the cells

D. Decreases intracellular cAMP level

3671. The following is not a phospholipid______________?
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A. Cerebroside

B. Lecithin

C. Cephalin

D. Sphingomyelin

3672. Which is not seen in HMG CoA pathway ?
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A. Pyruvate

B. Mevalonate

C. Cholesterol

D. Acetyl CoA

3673. True about denaturation of protein is all except______________?
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A. Disruption of secondary structure occurs

B. Unfolding occurs

C. Biological activity is retained

D. Sequence of amino acids remain the same

3675. The teeth that are retained for the longest period of time are__________________?
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A. Maxillary canines

B. Mandibular incisors

C. Maxillary incisors

D. Mandibular canines

E. B & D
3677. The following are derived from cholesterol, EXCEPT_____________?
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A. Bile acids

B. Steroid hormones

C. Vitamin D

D. Energy
3679. Triglyceride synthesis synthesis is increased by______________?
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A. Insulin

B. Cortisol

C. Gulcagon

D. Growth hormone

3680. Detoxification or protective synthesis occurs by____________?
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A. Oxidation

B. Any of the above

C. Conjugation

D. Reduction

3681. Mutations are due to changes in_________________?
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A. Amino acid sequence of ribonuclease

B. RNA nucleotide sequence

C. DNA nucleotide sequence

D. Cell walls

3683. The main function of HDL is____________?
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A. Transport cholesterol from liver to peripheral tissues

B. Esterification with PUFA

C. Both of the above

D. None of the above
3685. Which of the following is false about starvation ketoacidosis ?
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A. Metabolic acidosis

B. Smell of acetone in breath

C. Rotheras test is +ve

D. Benedicts test +ve
3686. DNA double helix is bound by_____________?
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A. Covalent bond

B. Vander wall forces

C. Hydrogen bond

D. Disulfide linkage

3690. Calcification of permanent first molar usually begins in the_____________?
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A. Third month of intrauterine life

B. In the third month of extra uterine life

C. In the sixth month of intrauterine life

D. At birth
3693. Ammonia produced by brain is trapped as_____________?
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A. Glutamine

B. Creatinine

C. Uric Acid

D. Urea

3694. The best technique useful for initial viral load estimation is________________?
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A. Immunofluoresence

B. Real time PCR

C. Electrophoresis

D. Widal test

3697. A new tooth is erupting in the mouth of a one and a half year old child. This tooth is most likely to be a decidous___________?
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A. Mandibular lateral incisor

B. Maxillary canine

C. Maxillary central incisor

D. Maxillary lateral incisor

3700. Which of the following is dental formula of a 9 years old child_____________?
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A. 76EDC21/ 7EDC21

B. EDC21/EDC21

C. 6EDCBA/ 6EDC21

D. 6 EDC21/ 6EDC21