• 1. Question
It is true regarding the normal microbial flora present on the skin and mucous membranes that:
• 1. lt cannot be eradicated by antimicrobial agents
• 2. It is absent in the stomach due to the acidic pH
• 3. The flora in the small bronchi is similar to that of the Trachea
• 4. It establishes in the body only after the neonatal period
• 2. Question
Which one of the following is not used as a tumor marker in testicular tumours?
• 1. HCG
• 2. AFP
• 3. LDH
• 4. CEA
• 3. Question
The most common pathogens responsible for nosocomial pneumonias in the ICU are:
• 1. Gram positive organisms
• 2. Gram negative organisms
• 3. Mycoplasma
• 4. Virus infections
• 4. Question
A simple bacterial test for mutagenic carcinogens is:
• 1. Ames test
• 2. Redox test
• 3. Gene splicing
• 4. Bacteriophage
• 5. Question
The following is not a feature of malignant transformation by cultured cells:
• 1. Increased requirement for growth factors
• 2. Alterations of cytoskeletal structures
• 3. Increased cell density
• 4. Loss of anchorage
• 6. Question
The fibers from the contralateral nasal hemiretina project to the following layers of the lateral geniculate nucleus:
• 1. Layers 2, 3 & 5
• 2. Layers 4, 5 & 6
• 3. Layers 1, 2 & 6
• 4. Layers 1, 4 & 6
• 7. Question
Which one of the following molecules is used for cell signaling?
• 1. N2
• 2. CO2
• 3. O2
• 4. NO
• 8. Question
Urinary concentrating ability of the kidney is increased by:
• 1. Increase in GFR
• 2. ECF volume contraction
• 3. Reduction of medullary hyperosmolarity
• 4. Increase in Renal blood flow
• 9. Question
The following statements concerning chorda tympani nerve are true except that it:
• 1. Joins lingual nerve in infratemporal fossa
• 2. ls a brach of facial nerve
• 3. Carries secretomotor fibers to submandibular gland
• 4. Contains postganglionic parasympathetic fibers
• 10. Question
All of the following physiological processes occur during the growth at the epiphyseal plate except:
• 1. Proliferation and hypertrophy
• 2. Vasculogenesis and erosion
• 3. Replacement of red bone marrow with yellow marrow
• 4. Calcification and ossification
• 11. Question
The type of joint between the sacrum and the coccyx is a
• 1. Symphysis
• 2. Synchondrosis
• 3. Synostosis
• 4. Syndesmosis
• 12. Question
At t=0 there are 6 x 10^23 radioactive atoms of a substance, which decay with a disintegration constant equal to 0.01/sec. What would be the initial decay rate?
• 1. 6 X 10^20
• 2. 6 X 10^22
• 3. 6 X 10^23
• 4. 6 X 10^21
• 13. Question
The technique employed in radiotherapy to counteract the effect of tumour motion due to breathing is known as
• 1. Shunting
• 2. Modulation
• 3. Arc technique
• 4. Gating
• 14. Question
The gold standard for the diagnosis of osteoporosis is:
• 1. Single energy X-ray absorptiometry
• 2. Dual energy X-ray absorptiometry
• 3. Quantitative computed tomography
• 4. Ultrasound
• 15. Question
The most appropriate circuit for ventilating spontaneously breathing infant during anaesthesia
• 1. Mapleson A or MgiIl’s circuit
• 2. Jackson Rees modification of Ayre T piece
• 3. Mapleson C or Waters’ to and fro canister
• 4. Bains circuit