Unit 1 - Practice Quiz

1 The term 'Phytopathology' is derived from three Greek words: phyton, pathos, and logos. What is the meaning of phyton?

2 Who is considered the 'Father of Plant Pathology'?

3 The Irish Famine of 1845 was caused by which pathogen?

4 Which scientist is recognized as the 'Father of Indian Plant Pathology'?

5 The Bengal Famine of 1943 was associated with which crop disease?

6 Who established the Indian Phytopathological Society (IPS) in 1948?

7 Which Indian scientist is famous for his work on the recurrence of Wheat Rusts in the plains of India?

8 The book 'Fungi and Disease in Plants' was written by:

9 Who discovered the Bordeaux Mixture in 1885 for the control of Downy Mildew of Grapevine?

10 The first plant disease proved to be caused by a bacterium (Fire blight of pear) was discovered by:

11 A pathogen is defined as:

12 The ability of a pathogen to cause disease is known as:

13 The period of time between the penetration of a pathogen into the host and the appearance of the first symptom is called:

14 Which of the following represents the Disease Triangle?

15 If time is added to the Disease Triangle, the model becomes a:

16 An organism that lives on or in another organism and derives its nutrition from it is called a:

17 Which type of parasite requires a living host for its growth and reproduction and cannot be cultured on artificial media?

18 An organism that is usually a saprophyte but can become a parasite under favorable conditions is called a:

19 Necrotrophs are pathogens that:

20 A visible structure of the pathogen itself appearing on the host surface is called a:

21 Which of the following is a Sign of disease?

22 The collective set of symptoms and signs exhibited by a disease is known as:

23 A disease that is constantly present in a moderate to severe form within a specific region (e.g., Wart disease of potato in Darjeeling) is called:

24 A disease that occurs at very irregular intervals and locations is termed:

25 When a disease spreads over a vast geographical area, involving continents (e.g., Late blight of potato in 1845), it is called:

26 Diseases caused by non-living environmental factors like temperature or nutrient deficiency are called:

27 Which of the following represents a Hypertrophic symptom?

28 Hypoplasia refers to:

29 Necrosis refers to:

30 The collapse of seedling stems at the soil line followed by toppling over is a symptom known as:

31 A symptom characterized by the complete loss of turgidity and drooping of leaves due to vascular blockage is:

32 Who postulated the 'Germ Theory of Disease' (specifically Koch's Postulates) adapted for plants?

33 Which of the following is an example of a Mesobiotic agent?

34 'Coffee Rust' in Sri Lanka (1867) forced the island to switch from coffee to tea. The pathogen was:

35 Which Indian scientist is known for his contribution to embryo culture and studying the physiology of fungi (vivotoxin concept)?

36 The rapid death of leaves, flowers, or stems is called:

37 Chlorosis is a symptom defined as:

38 Who discovered Streptomycin, an antibiotic used against bacterial plant pathogens?

39 The 'Gene-for-Gene' hypothesis was proposed by:

40 A polycyclic disease is one that:

41 Which of the following is a prokaryotic plant pathogen lacking a cell wall?

42 Virods differ from viruses because viroids:

43 The term 'Inoculum' refers to:

44 The conversion of a saprophyte into a parasite due to external pressure is sometimes referred to as:

45 Who wrote the book 'Plant Pathology' (a standard textbook widely used in India/Global)?

46 The first plant parasitic nematode (Wheat seed gall) was reported by:

47 The dead area in the center of a spot falling away, leaving a hole, is called:

48 Exclusion, Eradication, Protection, and Resistance are the four fundamental principles of:

49 A distinct, sunken, necrotic lesion on a stem, branch, or twig is called a:

50 The phenomenon where a host cell dies rapidly to prevent the spread of an obligate parasite is called: