1. TMV virus was discovered by
- Pasteur
- S L Miller
- Ivanowsky
- W M Stanley
Answer: Ivanowsky
2. Plant of this group possess naked seed
- Pteridophytes
- Angiosperms
- Gymnosperms
- Bryophytes
Answer: Gymnosperms
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3. Which of the following statements is false about the fungi?
- They are eukaryotes
- They are heterotrophs
- They possess a purely cellulosic cell wall
- None of the above
Answer: They possess a purely cellulosic cell wall
4. Static concept of species was proposed by _______.
- Darwin
- Theophrastus
- Linnaeus
- De Candolle
Answer: Linnaeus
5. T.O. Diener discovered _______.
- Bacteriophage
- Infectious protein
- Free infectious DNA
- Free infectious RNA
Answer: Free infectious RNA
6. A capsule is advantageous to a bacterium because
- it protects the bacterium from desiccation
- it protects means of locomotion
- it allows the bacterium to “hide” from the host’s immune system
- it allows the bacterium to attach to the surface
Answer: it allows the bacterium to “hide” from the host’s immune system
7. Xerophytic characters are present in ……………………..
- Bryophytes
- pteridophytes
- gymnosperms
- angiosperms
Answer: gymnosperms
8. Xerophytic characters are present in ……………………..
- Bryophytes
- pteridophytes
- gymnosperms
- angiosperms
Answer: gymnosperms
9. Who classified angiosperms into two classes,…
- theoprattus
- bentham and hooker
- Aristotle
- Linnaeus
Answer: bentham and hooker
10. The name virus was given by …
- Ivanowsky
- Pasteur
- Diener
- Hershey
Answer: Pasteur
11. The plant cell without chloroplast is ….
- Algae
- Fungi
- Bryophytes
- Pteridophytes
Answer: Fungi
12. Linnaeus evolved a system of nomenclature called _______.
- Vernacular
- Monomial
- Polynomial
- Binomial
Answer: Binomial
13. ICBN stands for _______.
- International Code of Botanical Nomenclature
- Indian Code of Botanical Nomenclature
- Indian Congress of Biological names
- Indian Congress of Botanical Nomenclature
Answer: International Code of Botanical Nomenclature
14. In which plant ,gametophytic phase is main and sporophytic phase is subsidiary.
- Bryophytes
- pteridophytes
- gymnosperms
- angiosperms
Answer: Bryophytes
15. Embryo is not formed in …
- algae
- Bryophytes
- gymnosperm
- pteridophytes
Answer: algae
16. Prokaryotes are included in the kingdom ….
- Monera
- Protista
- Protozoa
- Basidiomycetes
Answer: Monera
17. The main structural component of virus is …
- nucleic acid
- protein
- nucleic acid and protein
- nucleic acid or protein
Answer: nucleic acid and protein
18. What is the main basis of classification in the five-kingdom system?
- Structure of the nucleus
- Structure of cell wall
- Asexual Reproduction
- Mode of Nutrition
Answer: Mode of Nutrition
19. Genes of Tobacco Mosaic Virus are _______.
- Double-stranded RNA
- Single-stranded RNA
- Double-stranded DNA
- Proteinaceous
Answer: Single-stranded RNA
20. The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorized as
- cyanobacteria
- archaebacteria
- chemosynthetic autotrophs
- heterotrophic bacteria
Answer: heterotrophic bacteria
21. Some bacteria thrive in extreme environment conditions such as absence of oxygen, high salt concentration, high temperature and acidic PH Name them…
- Cyanobacteria
- Eubacteria
- Archaebacteria
- Streptococcus
Answer: Archaebacteria
22. Membranous infolding in bacteria that initiate DNA replication is
- Mesosomes
- Carboxysome
- Magnetosome
- Nucleosome
Answer: Mesosomes
23. Which classification system had been given whittaker ?
- 3 domain classification
- binomial classication
- 5 kingdom classification
- artificial classification
Answer: 5 kingdom classification
23. Halophiles is also called …..
- Eubacteria
- Actinomyce
- Cyanobacteria
- Archaebacteria
Answer:Archaebacteria
24. Fungus cell wall is made up of…..
- Cellulose
- Protein
- Chitin
- carbohydrates
Answer:Chitin
25. Symbiotic relationship is found in ….
- Algae
- Fungi
- Bryophytes
- Lichens
Answer:Lichens
26. The protists have which of the following?
- Free nucleic acid aggregates
- Nucleoprotein in direct contact with the rest of the cell substance
- Membrane-bound nucleoproteins within the cytoplasm
- Nucleoproteins condensed together in a loose mass
Answer:Membrane-bound nucleoproteins within the cytoplasm
27. The imperfect fungi that are decomposers of litter and help in mineral cycling belong to
- Phycomycetes
- Ascomycetes
- Deuteromycetes
- Basidiomycetes
Answer:Deuteromycetes
28. The tallest living tree in the world is …………..
- Zamia sp.
- Eucalyptus sp.
- Wolffia sp.
- Sequoia sp.
Answer:Sequoia sp.
29. Fruiting body is characteristic of…
- Algae
- Lichens
- Bryophyta
- Pteridophyta
Answer:Lichens
30. Class dicotyledon is divided into….
- 7 sub-classes
- 5 sub-classes
- 3 sub-classes
- 2 sub- classes
Answer:2 sub- classes
31. A virus contains
- DNA
- RNA
- DNA or RNA
- DNA and RNA
Answer:DNA or RNA
32. In lichens fungal component is known as …..
- Mycobiont
- phycobiont
- 1 & 2
- none of these
Answer:1 & 2
33. Who wrote the book “Genera Plantarum”?
- Bessey
- Benthem and Hooker
- Linnaeus
- Hutchinson
Answer:Linnaeus
34. The first land plant on earth was…………..
- Bryophytes
- pteridophtes
- gymnosperms
- angiosperms
Answer:pteridophtes
35. Extra chromosomal,circular ,double stranded ,self replicating DNA molecule in bacteria is called
- Cosmid
- Plasmid
- Phasmid
- Phagemid
Answer:Plasmid
36. Which of the fossil member?
- pinus
- thuja
- cycas
- bennettites
Answer:bennettites
37. Presence of rigid cell wall is characterized by kingdom…
- Protista
- plantae
- monera
- Animalia
Answer:monera
38. By how many criteria ,living organisms have been classified into five kingdom.
- Two
- Four
- five
- Three
Answer:Four
39. Study of lichens is called …..
- Algology
- Mycology
- Lichenology
- Cytology
Answer:Lichenology
40. Blue-green algae belong to which group?
- Protista
- Prokaryotes
- Fungi
- Bryophytes
Answer:Prokaryotes
