All India Institute of Medical Sciences 2008 - Question Paper

Q. 1. Biological organisation begins with:
a. Atomic level
b. Submicroscopic molecular level
c. Cellular level
d. Organismic level
Sol. accurate choice: (2)
Q. 2. About 98 percent of the mass of every residing organism is composed of just 6 elements including carbon, hydrogen, nitrogen, oxygen and:
a. calcium and phosphorous
b. phosphorus and sulphur
c. sulphur and magnesium
d. magnesium and sodium
Sol. accurate choice: (1)
Q. 3. Which 1 of the subsequent is an example of negative feed back loop in humans?
a. Secretion of sweat glands and constriction of skin blood vessels when it is too hot.
b. Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold.
c. Secretion of tears after falling of sand particles in to the eye
d. Salivation of mouth at the sight of delicious food.
Sol. When the set point of hypothalamus is disturbed by high temperature, it stimulates vasodilation and sweating while in low temperature there is vasoconstriction and shivering. accurate choice: (2)
Q. 4. What is common to whale, seal and shark?
a. Homoiothermy
b. Seasonal migration]
c. Thick subcutaneous fat
d. Convergent evolution
Sol. Shark is poikilothermous. All 3 species show adaptations for aquatic life while these are not closely related. accurate choice: (4)
Q. 5. Which 1 of the subsequent is not a constituent of cell membrane?
a. Phospholipids
b. Cholesterol
c. Glycolipids
d. Proline
Sol. accurate choice: (4)
Q. 6. choose the wrong statement from the following:
a. The chloroplasts are generally much larger than mitochondria.
b. Both chloroplasts and mitochondria contain and inner and an outer membrane
c. Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane
d. Both chloroplasts and mitochondria contain DNA.
Sol. accurate choice: (3)
Q. 7. The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:
a. Nucleic acids
b. ATP is small stepwise units
c. ATP in 1 large oxidation reaction
d. Sugars
Sol. accurate choice: (2)
Q. 8. If the mean and the median pertaining to a certain character of a population are of the identical value, the subsequent is most likely to occur:
a. a skewed curve
b. a normal distribution
c. a bi-modal distribution
d. a T -shaped curve
Sol. accurate choice: (2)
Q. 9. Which 1 of the subsequent is a slime mould?
a. Anabaena
b. Rhizopus
c. Physarum
d. Thiobacillus
Sol. Physarum is an acellular slime mould. accurate choice: (3)
Q.10. For a critical study of secondary growth in plants, which 1 of the subsequent pairs is suitable?
a. Wheat and maiden hair fern

Earning:   Approval pending.