The National Testing Agency (NTA) will conduct the National Eligibility cum Entrance Test (NEET)-UG for MBBS, BDS admissions. The exam date for NEET 2021 is August 1 and only two months are left for the national level medical entrance test, the second wave of the COVID-19 pandemic, the National Testing Agency (NTA) that conducts the National Eligibility Cum Entrance Test (NEET) and (JEE) (Main) exams will hold a review meeting to take a decision on the medical entrance and engineering entrance exams.
plant kingdom NEET questions pdf ALL 2021 Upcoming plant kingdom questions plant disease important questions and answer
- A part of pathogen that is transmitted to the host is termed as
(2) infection
(1) disease
(4) incubation
(3) inoculum
- Which of the following does not help in penetration of pathogen into the host ?
(2) Piricularin
(1) Pectinase
(3) Cutinase
(4) Ligninase
3, The disease symptom necrosis refers to
(1) rough crust-like lesions
(2) dead corky areas
(3) burnt areas on the leaves
(4) dead tissues
- A diseased leaf shows some areas with dead tissue. This symptom is often referred to as
(1) chlorosis
(2) necrotic spotsS
(3) blight
(4) galls
- Leaves of pea show white powdery patches due to the growth of fungal mycelium with conidia and conidiophores. These are the symptoms of
(2) damping off
(1) blight
(4) rust
(3) mildew
- When a diseased plant is legally stopped from export, this is done under
(1) curative check
(2) biological prevention
(3) quarantine measure
(4) crop improvement
- Red rot of sugarcane is caused by
(1) Alternaria solani
(2) Colletotrichum falcatum
(3) Helminthosporium oryzae
(4) Cercospora arachidicola
- Which of the following is not a viral disease’
(1) Red rot of sugarcane
(2) Tobacco mosaic
(3) Leaf curl of papaya
(4) Tristeza disease of Citrus
- Banana bunchy top is caused by
(1) mycoplasma
(2) deuteromycetes
(3) Xanthomonas
(4) virus
- Citrus canker is caused by
(1) Pseudomonas rubrilineans
(2) Xanthomonas oryzae
(3) Xanthomonas citri
(4) Pseudononas solanacearum
- Crown gall disease is caused by
(2) virus
(1) bacteria
(4) mycoplasma
(3) fungi
- Late blight of potato is caused by
(1) Albugo candida
(2) Fusarium moniliforme
(3) Phytophthora infestans
(4) Alteraria solani
- Downy mildew disease is caused by
(1) Peronospora
(2) Puccinia
(3) Albugo
(4) Phytophthora
- Which of the following causes smut disease in cultivated plants?
(2) Cystopus
(1) Puccinia
(4) Phytophthora
(3) Albugo
- Ergot is obtained from
(2) Cystopus
(1) Claviceps
(3) Ustilago
(4) Rhizobium
- Aflatoxin is produced as a product in
(2) Aspergillus
(1) Penicilium
(3) pathogenic bacteria
(4) Streptomyces
- Leaf spot of groundnut is caused by
(1) Sclerospora
(2) Piricularia
(3) Helminthosporium
(4) Cercospora
- Helminthosporium oryzae was the cause of disaster
(1) Irish famine is 1845
(2) Collapse of French industry in 1870
(3) Displacement of planters in Ceylon in 1867
(4) Bengal famine in 1943
- Which of the following is not a fungal disease?
(1) Rust disease of crucifers
(2) Red rust of tea
(4) Rust of wheat
(3) Rust of coffee
- Smut of maize is caused by
(2) Ustilago maydis
(1) Ustilago avenae
(3) Ustilago hordei
(4) Ustilago nuda
- The scientist who is famous for his research on rust fungi in India is
(2) K.C. Mehta
(1) Butler
(4) Mundker
(3) Sivadasan
- The pathogen that causes covered smut of Sorghum is
(1) Colletotrichum
(2) Sphacelotheca
(3) Helminthosporium
(4) Cercospora
- Which of the following is not a correct match?
(1) Helminthosporium Bengal famine
(2) Cercospora Tikka disease of groundnut
(3) Aspergillus parasiticus Aflatoxin
(4) Melampsora-Red rust of tea
- The causal organism of early blight of potato is
(1) Albugo candida
(2) Altermaria solani
(3) Cercospora personata
(4) Phytophthora njestans
Table of Contents
📚 Keep reading – NEET IMP QUESTIONS AND ANSWER FREE PDF
- Chief constituents of Bordeaux mixture are
(1) calcium sulphate, copper carbonate and water
(2) calcium oxide, copper sulphate, water carbonate and
(3) calcium carbonate, copper water
(4) none of these
- Quarantine regulations are concerned with
(1) spraying of diseased plants with insecticides
(2) prevention of entry of diseased plants in the country
(3) growing of fruit trees in every state
(4) promotion of dry farming in sandy soil
- The smut mycelium which initiates the infection is usually
(2) haploid
(1) dikaryotic
(4) diploid
(3) triploid
- Propagating materials like seeds, tubers, grafts and bulbs can be kept free of pathogens by
(1) giving heat, gas or chemical treatment
(2) deep saving
(3) giving acid treatment
(4) giving alkali treatment
- Chemicals which are applied soon after the outset of infection, suppress the development of pathogen, thus curing the plant, are called
(1) therapeutants
(2) eradicants
(3) protectants
(4) fumicides
- Small epidermal swellings due to infection are called
(2) shot holes
(1) burnts
(4) eczema
(3) eczema
- In plants, the substances which accumulate around the site of infection are
(1) pathogenesis-related proteins
(2) phytoalexins
(3) saponins
(4) all of the above
- Which of the following fungal diseases spreads by seeds and flowers
(1) Loose smut of wheat
(2) Corn stunt
(3) Covered smut of barley
(4) Soft rot of potato
- Which of the following secretes toxins during storage conditions of crop plants ?
(2) Fusarium
(1) Colletotrichum
(4) Penicillium
(3) Aspergillus
- The problem of necrosis and senescence in tissue culture is overcome by
(1) spraying cytokinins
(2) spraying auxins
(3) suspension culture
(4) subculture
- Bacterial leaf flight of Rice is caused by
(2) Ervinia
(1) Alternaria
(4) Pseudomonas
(3) Xanthomonas
- Which of the following is a bacterial plan disease?
(1) Tikka disease of groundnut
(2) Downy mildew of grapes
(3) Ring rot of potato
(4) Red rot of sugarcane
- Bacillus thuringiensis is used as
(1) fungicide
(2) biopesticide
(3) insecticide
(4) weedicide - Powdery mildew of pea is caused by
(1) Erysiphe
(2) Puccinia
(3) Ustilago
(4) Alternaria
- Effective management practice for bacteria leaf blight of rice is
(1) removal of secondary host weed
(2) use of resistant varieties
(3) treatment of ZnSO4 and CaOCl2
(4) all of the above
- ______________is body disorder due to harmful changes in the body of an organism.
(4) resistance
(3) infection
(2) pathology
(1) disease
- __________. is a branch of science dealing with nature, symptoms, development and control of plant a plant disk
(4) phytopathology
(3) epidemology
(2) mycology
(1) pathology
- A part of pathogen transmitted to the host is termed as __
(2) infection
(3) inoculum
(4) incubation
(1) disease
- ____includes the study of pathogen.
(2) etiology
(1) etymology
(3) physiology
(4) symptomology
- Dead and corky areas with definite margins located on stem, branches and fruits are___
(1) galls
(2) canker
(3) scab
(4) chlorosis
- A class of phenolic compounds produced by the host plant in response to fungal infections
(1) aflatoxins
(2) phytoalexin
(3) gibberellins
(4) arbutin
- The disease occuring more or less regularly from year to year in a particular locality is known as__
(1) endemic disease
(2) epidemic disease
(3) sporadic disease
(3) pandemic disease
- ___is a very widely occuring infection.
(1) massive
(2) wide
(3) systemic
4) localized
48._ is the inability of a plant to resist the effects of a pathogen or any other damaging factor.
(4) predisposition
(3) virulence
(2) resistance
(1) susceptibility
- A living plant or animal from which a parasite derives nutrition is known as___
(4) host
(3) infection
(2) inoculum
(1) pathogen
- 1845 Irish famine was due to loss of _ crop
(1) DNA
(2) RNA
(3) petole
(4) vexiy
ANSWER
- (3)2. (1)3. (4)4. (2)5. (3)6. (3)7. (2) 8. (1) 9. (4) 10. (3)11. (1)12. (3)13. (1)14. (3)15. (1)16. (2)17. (4) 18. (4) 19. (2) 20. (2)21. (2)22. (2)23. (4)24. (2)25. (2)26. (2) 27. (1) 28. (1)29. (1)30. (4)31. (2)32. (1) 33. (3)34. (4) 35. (3) 36.(3)37. (2) 38. (1) 39. (4)40. (1) 41. (4) 42. (3) 43. (2) 44. (2) 45. (1) 46. (1), 47. (3), 48. (2), 49. (4).50(1)