Biology · NDA previous year questions

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2019 18 questions

Q532019 · 17 Nov 2019
Which one of the following statements regarding Ohm’s law is not correct?
1. A.Ohm’s law is an assumption that current through a conductor is always directly proportional to the potential difference applied to it.
2. B.A conducting device obeys Ohm’s law when the resistance of a device is independent of magnitude and polarity of applied potential difference.
3. C.A conducting material obeys Ohm’s law when the resistance of material is independent of the magnitude and direction of applied electric field.
4. D.All homogeneous materials obey Ohm’s law irrespective of whether the field is within range or strong.
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Answer: D
Q922019 · 17 Nov 2019
Blood is a type of
1. A.Epithelial tissue
2. B.Muscular tissue
3. C.Nervous tissue
4. D.Connective tissue
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Answer: D
Q932019 · 17 Nov 2019
Mitochondria are able to produce their own
1. A.Nucleus
2. B.Proteins
3. C.Chloroplasts
4. D.Digestive enzymes
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Answer: B
Q942019 · 17 Nov 2019
Which one of the following statements is correct?
1. A.Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres.
2. B.Flexibility in plants is due to sclerenchyma.
3. C.Parenchyma have no intercellular spaces.
4. D.Xylem consists of sieve plate, sieve tube and companion cells.
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Answer: A
Q972019 · 17 Nov 2019
Thyroid gland produces a hormone called “Thyroxine” which
1. A.controls blood glucose levels.
2. B.controls ovulation.
3. C.controls metabolic rate.
4. D.maintains pregnancy.
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Answer: C
Q982019 · 17 Nov 2019
Which one of the following is a bacterium that causes disease in the human body?
1. A.Varicella zoster
2. B.Trypanosoma gambiense
3. C.Salmonella typhi
4. D.Plasmodium falciparum
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Answer: C
Q992019 · 17 Nov 2019
Which one of the following statements regarding viruses is not true?
1. A.Viruses need living cells to reproduce.
2. B.All viruses are parasites.
3. C.Viruses can synthesize their food through photosynthesis.
4. D.Viruses are similar to chemical substances outside the host.
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Answer: C
Q1002019 · 17 Nov 2019
Which one of the following diseases may be caused by the deficiency of vitamin C?
1. A.Rickets
2. B.Rabies
3. C.Hepatitis
4. D.Scurvy
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Answer: D
Q822019 · 21 Apr 2019
Which one of the following is an organic acid ?
1. A.Hydrochloric acid
2. B.Nitric acid
3. C.Acetic acid
4. D.Sulphuric acid
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Answer: C
Q892019 · 21 Apr 2019
Which one of the following cell organelles does NOT possess nucleic acid?
1. A.Nucleolus
2. B.Chloroplast
3. C.Ribosome
4. D.Plasma Membrane
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Answer: D
Q902019 · 21 Apr 2019
Which one of the following cell organelles does NOT possess its own genetic material encoding proteins?
1. A.Ribosome
2. B.Nucleus
3. C.Mitochondria
4. D.Chloroplast
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Answer: A
Q912019 · 21 Apr 2019
Which one of the following is NOT a component of conducting tissue in plants?
1. A.Fibres
2. B.Tracheids
3. C.Pericycle
4. D.Sieve tubes
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Answer: C
Q922019 · 21 Apr 2019
Which one of the following organisms has vascular tissues?
1. A.Cladophora
2. B.Penicillium
3. C.Marsilea
4. D.Anabaena
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Answer: C
Q932019 · 21 Apr 2019
Which one of the following organisms represents the primary consumer category in an ecosystem?
1. A.Caterpillar
2. B.Crabapple tree
3. C.Frog
4. D.Sparrowhawk
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Answer: A
Q952019 · 21 Apr 2019
Which one of the following statements regarding Electrocardiogram is correct?
1. A.Electrocardiogram is graphical representation of electrical activity of cornea
2. B.Electrocardiogram is graphical representation of activity of kidney
3. C.Electrocardiogram is graphical representation of activity of brain
4. D.Electrocardiogram is graphical representation of electrical activity of heart
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Answer: D
Q962019 · 21 Apr 2019
Which one of the following statements regarding Penicillin is correct?
1. A.Penicillin resistant bacteria can store this antibiotic in vacuole
2. B.Penicillin resistant bacteria can degrade this antibiotic by an enzyme called β-lactamase
3. C.Penicillin resistant bacteria can degrade this antibiotic by an enzyme called lactic acid dehydrogenase
4. D.Penicillin is not absorbed by bacteria; so most bacteria are resistant
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Answer: B
Q972019 · 21 Apr 2019
Which one of the following organelles of mammalian cell is rich in hydrolytic enzymes?
1. A.Mitochondria
2. B.Ribosomes
3. C.Lysosome
4. D.Nucleus
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Answer: C
Q982019 · 21 Apr 2019
Which one of the following statements regarding Cholera is correct?
1. A.Cholera is a disease that causes loss of memory
2. B.Cholera is a disease of muscles due to consumption of alcohol
3. C.Cholera is a disease due to consumption of contaminated food or water
4. D.Cholera is a genetic disease
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Answer: C