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Human Health and Disease

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Which one is the wrong pairing for the disease and its causal organism?

  • Late blight of potato - Alternaria solani

  • Black rust of wheat - puccinia graminis

  • Loose smut of wheat - Ustilago nuda

  • Root-knot of vegetables- Meloidogyne sp.


A.

Late blight of potato - Alternaria solani

The causative agent of late blight of potato is fungus Phytophthora infestans, class- Oomycetes, order- Peronosporales, family-pythaiceae. In India, the late blight of potato is a seed born disease.

The causative agent of late blight of potato is fungus Phytophthora infestans, class- Oomycetes, order- Peronosporales, family-pythaiceae. In India, the late blight of potato is a seed born disease.


What is the significance of ‘Typhoid Mary’ ?

Typhoid Mary was a Typhoid carrier who continued to spread typhoid for several years through food she prepared.

What is health ?

It is a state of complete, physical, mental and social well being of a person.

List advantages of good health.

Healthy people are more efficient and productive. good health also brings prosperity and people live long. It also reduces infant and maternal mortality.

What is disease ?

Malfunctioning of one or more organs characterised by signs and symptoms is called disease.

Name three important aspects to maintain good health.

(i) Balanced diet (ii) Personal hygiene and (iii) Regular exercise.