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2013 19 questions

Q552013 · 11 Aug 2013
Which one among the following terms is used to describe a plant that grows only in a mountainous environment?
1. A.Orophyte
2. B.Geophyte
3. C.Epiphyte
4. D.Bryophyte
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Answer: A
Q582013 · 11 Aug 2013
Which one among the following animals does not undergo periodic moulting of their external body covering?
1. A.Cockroach
2. B.Cobra
3. C.Earthworm
4. D.Dragonfly
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Answer: C
Q592013 · 11 Aug 2013
Which one among the following organs in humans is not involved in elicitation of immune response?
1. A.Thymus
2. B.Brain
3. C.Spleen
4. D.Lymph Nodes
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Answer: B
Q622013 · 11 Aug 2013
Which one among the following animals gives birth to the biggest baby?
1. A.Elephant
2. B.Rhinoceros
3. C.Blue whale
4. D.Hippopotamus
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Answer: C
Q642013 · 11 Aug 2013
Solutions of three enzymes were prepared namely lipase, trypsin and amylase, in order to remove stains from a piece of cloth. Out of these three enzyme solutions, only lipase could completely remove the stain. This indicates that the stain was due to
1. A.Oil
2. B.Protein
3. C.Mixture of protein and oil
4. D.Starch containing plant pigment
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Answer: A
Q652013 · 11 Aug 2013
Which one among the following diseases is not caused by polluted water?
1. A.Dysentery
2. B.Jaundice
3. C.Typhoid
4. D.Tuberculosis
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Answer: D
Q662013 · 11 Aug 2013
Which one among the following animals is a mammal?
1. A.Great Indian Bustard
2. B.Gharial
3. C.Platypus
4. D.Hornbill
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Answer: C
Q832013 · 11 Aug 2013
The ceilings of a concert hall are generally curved
1. A.because they reflect the sound to the audience.
2. B.because they can absorb noise.
3. C.to have better aeration in the hall.
4. D.as any sound from outside cannot pass through a curved ceiling.
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Answer: A
Q522013 · 14 Apr 2013
Consider the following diseases : 1. Cholera 2. Tuberculosis 3. Filaria 4. Typhoid Which of the above diseases are caused by bacteria?
1. A.1 and 3 only
2. B.2 and 4 only
3. C.1, 3 and 4
4. D.1, 2 and 4
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Answer: D
Q532013 · 14 Apr 2013
Consider the following statements in relation to plant tissue ‘chlorenchyma’ : 1. It is formed by the palisade and spongy mesophyll. 2. It is a form of parenchyma which contains chloroplasts. 3. It serves to transport organic solutes made by photosynthesis. 4. It is a thin transparent layer which has chiefly a protective function. Which of the statements given above is/are correct?
1. A.1 and 2 only
2. B.1, 2 and 3
3. C.2 and 4
4. D.1 only
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Answer: A
Q542013 · 14 Apr 2013
Consider the following statements regarding osmosis in animal cells : 1. If the water potential of the solution surrounding the cell is too high, the cell shrinks. 2. If the water potential of the solution surrounding the cell is too low, the cell swells and bursts. 3. It is important to maintain a constant water potential inside the animal body. 4. In animal cells, water potential far exceeds the solute potential. Which of the statements given above is/are correct?
1. A.1 and 2
2. B.3 only
3. C.4
4. D.2 and 3
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Answer: B
Q552013 · 14 Apr 2013
Sun emits energy in the form of electromagnetic radiation. The following help in the generation of solar energy. Arrange them in the right sequence beginning from the starting of the cycle : 1. Hydrogen is converted to helium at very high temperatures and pressures. 2. The energy finds its way to sun’s surface. 3. A vast quantity of energy is generated by nuclear fusion. Select the correct answer using the code given below.
1. A.1–2–3
2. B.2–3–1
3. C.3–2–1
4. D.1–3–2
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Answer: D
Q672013 · 14 Apr 2013
Which of the following statements about sexual reproduction in flowering plants are correct? 1. Stamen is present in the centre of a flower. 2. Stamen produces pollen grains in the ovary. 3. The swollen bottom part of carpel is the ovary. 4. The fusion of germ cells gives rise to zygote. Select the correct answer using the code given below.
1. A.2, 3 and 4 only
2. B.2 and 4 only
3. C.1 and 3 only
4. D.1, 2, 3 and 4
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Answer: Dropped in the final answer key (full marks to everyone)
Q682013 · 14 Apr 2013
The complete digestion of carbohydrates, proteins and fats occurs in
1. A.stomach
2. B.liver
3. C.small intestine
4. D.large intestine
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Answer: C
Q692013 · 14 Apr 2013
Which one among the following statements about a healthy diet is correct?
1. A.Regular eating of high-energy snacks between meals is healthy since it provides energy and vitamins in plenty
2. B.Fruits and vegetables make a good choice because their energy content is high
3. C.A balanced diet must contain plenty of fat and protein with little carbohydrates and fibre
4. D.An optimal quantity of fat, protein, carbohydrate with adequate amount of water and fibre makes a healthy diet
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Answer: D
Q702013 · 14 Apr 2013
The Nobel Prize in Medicine for the year 2012 has been awarded to John B. Gurdon and Shinya Yamanaka for the discovery that
1. A.mature specialized cells can be reprogrammed to become immature cells
2. B.stem cells can be programmed to develop individual body organs
3. C.dendritic cells have a critical role in the development of adaptive immunity
4. D.thymus cells have a critical role in the development of innate immunity
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Answer: A
Q842013 · 14 Apr 2013
Which one among the following hormones stimulates the plant cells to grow in a manner such that the plant appears to be bent towards light?
1. A.Cytokinin
2. B.Auxin
3. C.Gibberellin
4. D.Abscisic acid
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Answer: B
Q852013 · 14 Apr 2013
Magnetic Resonance Imaging (MRI) is used in medical diagnosis to obtain images of our internal body organs. This is primarily possible because
1. A.our body possesses a permanent magnet
2. B.MRI uses an external magnet to generate a magnetic field in our body
3. C.MRI uses an external electric field to generate magnetic field in our body
4. D.ions’ motion along our nerve cells generates magnetic fields
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Answer: B
Q932013 · 14 Apr 2013
A current $I$ flows through a potential difference $V$ in an electrical circuit containing a resistance $R$ . The product of $V$ and $I$ , i.e., $V I$ may be understood as
1. A.resistance $R$
2. B.heat generated by the circuit
3. C.thermal power radiated by the circuit
4. D.rate of change of resistance
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Answer: C