The previous years question paper for the Vellore Institute of Technology Engineering Entrance Examination s as given below:

1. Which of the following protozoans live in guts of termites and help them to digest cellulose?
A) Plasmodium B) Amoeba proteus C) Trichonympha D) Trypanosoma

2. The function of centromere is to
A) move the chromosomes B) divide the centrosomes C) form nuclear spindle D) form spindle fibers

3. An embryo sac in higher plants at maturity has
A) 4 nuclei B) 7 nuclei C) 8 nuclei D) one nucleus

4. Gene assort independently from one another. How many genotype can be produced if the number of heterozygous gene pairs is four?
A) 4 B) 8 C) 81 D) 64

5. Which deficiency in humans causes Alzheimer’s disease?
A) GABA B) Dopamine C) Acetylcholine D) Glutamic acid

6. In Lineweaver-Burk plot, the Y intercept represents
A) Vmax B) Km C) 1/Vmax D) 1/Km

7. Which one of the following doesn't play any role in photosynthesis?
A) Phycocyanin B) Xanthophylls C) Phycoerythrin D) Anthocyanin

8. Fertilizin is a chemical substance produced from
A) mature eggs B) acrosome C) polar bodies D) middle piece of sperm

9. Introduction of DNA into the bacteria by exposing the cells to millisecond jolts of tens of thousands of volts is
A) electro fusion B) electro fission C) electrolysis D) electroporation

10. Which of the following is not a functional unit of ecosystem?
A) Productivity B) Energy flow C) Stratification D) Decomposition

11. The nucleus of an element contains 11 protons. Its valency would be
A) 0 B) 1 C) 2 D) 3

12. Identify the lanthanide which is obtained only by synthesis.
A) Lu B) Pm C) Pr D) Gd

13. Which one of the following compounds shows Frenkel defect?
A) ZnS B) CsCl C) FeO D) NaCl

14. A cylinder of cooking gas supplied by Indian Oil Corporation is assumed to contain 14 kg of butane (∆Hc for C4H10 = - 2600 kJ mol-1). If a small family of three persons, requires 10,000 J of heat energy per day for cooking, the gas in the cylinder would last for
A) 44 days B) 54 days C) 72 days D) 63 days

15. A small circular flexible loop of wire of radius r carries a current I. It is placed in a uniform magnetic field B. The tension in the
loop will be doubled if
A) I is doubled B) B is halved C) r is doubled D) Both B and I are doubled

16. What is the self-inductance of a coil when a change of current from 0 to 2 A in 0.05 s induces an emf of 40 V in it?
A) 1 H B) 2 H C) 3 H D) 4 H

17. A light has the wavelength 6000 Å in air and 4500 Å in water. Then the speed of light in water will be
A) 5.0 1014 m/s B) 2.25 108 m/s C) 4.0 108 m/s D) 1.0 108 m/s

18. In which of the following transitions in hydrogen atom will the wavelength be minimum?
A) n = 5 to n = 4 B) n = 4 to n = 3 C) n = 3 to n = 2 D) n = 2 to n = 1

19. One gram of Radium, with atomic weight 226, emits 4  1010 particles per second. The half-life of Radium is
A) 4.6 x 1010
B) 4.6 x 109
C) 4.6 x 1012
D) 4.6 x 1014