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MCI Exam Paper 2002

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20120804
[ Poll ]
Entropy in a biological system is constant because:
A. It is an open system
B. It is a closed system
C. It is a governed by vitalism
D. Has exothermic-endothermic reactions

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20120804
[ Poll ]
In dividing cells, spindle is formed by:
A. Ubiquitin
B. Tubulin
C. Laminin
D. Keratin

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20120804
[ Poll ]
Elasticity of the corneal layer of SKIN is due to the presence of:
A. Histidine
B. Keratin
C. Lysine
D. Cysteine

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20120804
[ Poll ]
Which of the following is true regarding hydroxy ethyl starch:
A. It is an anesthetic agent
B. It is a plasma expander
C. It is a crystalloid
D. Used as a nutritional agent

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20120804
[ Poll ]
All the following can be used to detect mutation, except:
A. Single strand conformational polymorphism
B. Ligase chain reaction
C. Polymerase chain reaction
D. DNA sequencing

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20120804
[ Poll ]
Apo B48 and apo B100 are expressed as two different apo-proteins because of difference in:
A. RNA editing
B. RNA splicing
C. Chromosomal loci
D. Apo-B gene

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20120804
[ Poll ]
Substrate level phosphorylation in citric acid cycle is seen in the conversion of:
A. Acetoacetate to
B. Succinyl CoA to succinate
C. Fumarate to malate
D. Succinate to fumarate

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20120804
[ Poll ]
In a well fed state, acetyl CoA obtained from diet is least used in the synthesis of:
A. Palmity CoA
B. Citrate
C. Acetoacetate
D. Oxalosuccinate

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20120804
[ Poll ]
Phenylalanine is the precursor of all the following, except:
A. Tyrosine
B. Epinephrine
C. Thyroxine
D. Melatonin

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20120804
[ Poll ]
Nitric oxide synthase:
A. Is inhibited by Ca++
B. Catalyses a dioxygenase reaction
C. Accepts electrons from NADH
D. Requires NADH, FAD, FMN & heme iron

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20120804
[ Poll ]
Vitamin B12 and folic acid supplementation in megaloblastic anemia leads to the improvement of anemia due to:
A. Increased DNA synthesis in bone marrow
B. Increased hemoglobin production
C. Erythroid hyperplasia
D. Increased iron absorption

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20120804
[ Poll ]
Thiamine level is best monitored by:
A. Transketolase level in RBC
B. Thiamine level in blood
C. G-6-PD activity
D. Reticulocytosis

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20120804
[ Poll ]
In oxidative phosphorylation, the ATP production and respiratory chain are linked by:
A. Chemical methods
B. Physical methods
C. Chemiosmotic methods
D. Conformational changes

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20120804
[ Poll ]
In which of the following reactions is magnesium required:
A. Na+K+ ATPase
B. Dismutase
C. Phosphatase
D. Aldolase

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20120804
[ Poll ]
Enzymes mediating transfer of one molecule to another are:
A. Transferases
B. Oxidases
C. Lysases
D. Peptidases

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20120804
[ Poll ]
“All enzymes are not proteins.” This statement is justified by:
A. All enzymes do not follow the Michaelis Menten hypothesis
B. RNAs act as ribozymes
C. Antibodies take part in the catalysis of many reactions
D. Metals are involved in attachment to enzymes and catalysts

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20120804
[ Poll ]
During muscular exercise all are seen except:
A. Increase in blood flow to muscles
B. Stroke volume increases
C. O2 dissociation curve shifts to left
D. O2 consumption increases

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20120804
[ Poll ]
TRH stimulation testing is useful in diagnosis of disorders of following hormones:
A. Insulin
B. ACTH
C. Prolactin
D. PTH

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20120804
[ Poll ]
Tropomyosin:
A. Helps in the fusion of actin and myosin
B. Covers myosin and prevents attachments of actin and myosin
C. Slides over myosin
D. Causes Ca2+ release

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20120804
[ Poll ]
In metabolic acidosis, which of the following changes are seen:
A. Increased K+excretion
B. Decreased K+ excretion
C. Increased Na+ excretion
D. Increased Na+ reabsorption

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20120804
[ Poll ]
Non shivering thermogenesis in adults is due to:
A. Thyroid hormone
B. Brown fat between the shoulders
C. Adrenaline from adrenal medulla
D. Muscle metabolism

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20120804
[ Poll ]
Ablation of the ‘somatosensory area 1’ of the cerebral cortex leads to:
A. Total loss of pain sensation
B. Total loss of touch sensation
C. Loss of tactile localization but not of two point discrimination
D. Loss of tactile localization and two point discrimination

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20120804
[ Poll ]
Sudden decrease in serum calcium is associated with:
A. Increased thyroxine and PTH secretion
B. Increased phosphate
C. Increased excitability of muscle and nerve
D. Cardiac conduction abnormalities

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20120804
[ Poll ]
Glucose mediated insulin release is mediated through:
A. ATP dependent K+ channels
B. cAMP
C. Carrier modulators
D. Receptor phosphorylation

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20120804
[ Poll ]
[PHYSIOLOGY] SI unit for measuring blood pressure is:
A. Torr
B. mrnHg
C. kPa
D. Bar

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20120804
[ Poll ]
[ANA]In flexion and abduction of shoulder all of the following structures are compressed except:
A. Subacromial bursa
B. Long head of biceps
C. Suprascapular nerve
D. Supraspinatus tendon

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20120804
[ Poll ]
[ANA] All of the following are features of large intestine, except:
A. Large intestine secretes acidic mucus which helps in formation of stools
B. It is a site of mucocutaneous junction
C. Its epithelium contains globlets cells in large numbers
D. Absorbs salt and water

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20120804
[ Poll ]
The sensoy supply of the palate is through all of the following, except:
A. Facial nerve
B. Hypoglossal nerve
C. Glossopharyngeal nerve
D. Maxillary division of trigeminal nerve

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20120804
[ Poll ]
Which of the following muscles is supplied by mandibular nerve:
.

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20120804
[ Poll ]
A patient with external hemorrhoids develops pain while passing stools. The nerve mediating this pain is:
.

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20120804
[ Poll ]
All the following are true regarding blood supply to the kidney , except:
.

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20120804
[ Poll ]
Ureteric constriction is seen at all the following positions, except:
.

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20120804
[ Poll ]
Diaphragmatic hernia can occur through all the following, except:
..

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20120804
[ Poll ]
The superficial external pudendal artery is a branch of:
..

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20120804
[ Poll ]
The weight of the upper limb is transmitted to the axial skeleton by:
..

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20120804
[ Poll ]
Elastic cartilage is found in
..

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20120804
[ Poll ]
All the following features are seen in neurons from dorsal root ganglia, except:
..

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20120804
[ Poll ]
Which of the following is true regarding gastrulation:
..

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20120804
[ Poll ]
All the following are derivatives of the neural crest, except:
....

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