Why is using tobacco in any form injurious to the health ? Explai

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 Multiple Choice QuestionsLong Answer Type

91. Name the pathogen that causes amoebiasis in human. Give the symptoms and modes of transmission.
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 Multiple Choice QuestionsShort Answer Type

92.

Answer the following questions:
(i) How and at what stage does Plasmodium enter into a human body?
(ii) Why does the victim show symptoms of high fever?

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 Multiple Choice QuestionsLong Answer Type

93. Name the type of immunity that is present at the time of birth in humans. Explain any two ways by which it is accomplished.

 

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94. Why is using tobacco in any form injurious to the health ? Explain.


Tobacco is injurious to health

1. It increases thw chances of cancer of lungs , urinary bladder and throat.
2. It increases heart rate and the risk of coronary heart disease.
3. It increases the risk of gastric ulcers.
4. It harms the lungs and may cause breathing problems and emphysema.
5. It increases Carbon monoxide and decreases the haemoglobin concentration in blood thus causing oxygen deficiency.
6. It cause headaches, dizziness, stained teeth and bleeding gums.

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95.

Sketch life cycle of Plasmodium in Humans.

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96. Discuss measures which would be useful for prevention and control of alcohol and drug abuse among adolescent.
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 Multiple Choice QuestionsShort Answer Type

97. What is autoimmunity ? Name one auto-immune disease.
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 Multiple Choice QuestionsMultiple Choice Questions

98. Perspiration, saliva and tears contain an enzyme, lysozyme kills :
  • Virus infected cells
  • Protozoa
  • Bacteria
  • Viruses
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99. Cells that engulf microbes are genrally called :
  • B-cells
  • Phagocytes
  • Killer T-cells
  • Helper T-cells
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100. Which of the following is opioid drug ?
  • Charas
  • Ganja
  • Cocaine
  • Heroin
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