Q1. Who proposed the five-kingdom system of classification?
A) Linnaeus
B) Whittaker
C) Haeckel
D) Aristotle
Q2. Which kingdom consists entirely of prokaryotic organisms?
A) Protista
B) Fungi
C) Monera
D) Plantae
Q3. What is the main component of the cell wall of fungi?
A) Cellulose
B) Pectin
C) Chitin
D) Peptidoglycan
Q4. Which of the following is not a eukaryote?
A) Amoeba
B) Moss
C) Blue-green algae
D) Mushroom
Q5. Which group is known as blue-green algae?
A) Algae
B) Mycoplasma
C) Cyanobacteria
D) Protozoa
Q6. Which of the following kingdoms does an amoeba belong to?
A) Animalia
B) Protista
C) Plantae
D) Monera
Q7. Mycoplasma differ from other bacteria because they:
A) Contain chlorophyll
B) Lack a rigid cell wall
C) Are multicellular
D) Are eukaryotic
Q8. The main plant body of slime molds is?
A) Mycelium
B) Hyphae
C) Plasmodium
D) Thallus
Q9. Which is not found in Monera?
A) Cell wall with peptidoglycan
B) Membrane-bound nucleus
C) Ribosomes
D) Circular DNA
Q10. Lichens are association between:
A) Bacteria and algae
B) Fungi and cyanobacteria
C) Fungi and algae
D) Fungi and protozoa
Q11. Which of these is a non-cellular entity?
A) Fungi
B) Virus
C) Euglena
D) Diatom
Q12. Which kingdom includes extremophiles?
A) Fungi
B) Plantae
C) Animalia
D) Monera
Q13. Dikaryon condition is characteristic of:
A) Algae
B) Fungi
C) Bryophytes
D) Cyanobacteria
Q14. The Deuteromycetes fungi are commonly known as:
A) Club fungi
B) Sac fungi
C) Fungi imperfecti
D) Zygomycetes
Q15. Plasmogamy, karyogamy, and meiosis are characteristic of:
A) Fungi
B) Algae
C) Bacteria
D) Protozoa
Q16. Cell wall of plant cells is made up of:
A) Chitin
B) Cellulose
C) Lignin
D) Glycogen
Q17. Which term describes a unicellular, eukaryotic, photosynthetic organism?
A) Cyanobacterium
B) Euglena
C) Bacterium
D) Viroid
Q18. Which is not a viral disease?
A) AIDS
B) Tuberculosis
C) Smallpox
D) Mumps
Q19. What is the genetic material present in viroids?
A) DNA
B) RNA
C) Both
D) Proteins
Q20. Which feature is common to archaea and eukarya?
A) Cell wall composition
B) Presence of a nucleus
C) Similar RNA polymerases
D) Chloroplasts
Q21. Which of the following is a colonial form of algae?
A) Chlorella
B) Volvox
C) Spirogyra
D) Ulothrix
Q22. Which kingdom includes organisms that are both autotrophic and heterotrophic?
A) Animalia
B) Monera
C) Protista
D) Fungi
Q23. Which cell organelle is absent in Monera?
A) Mitochondria
B) Ribosome
C) Cell wall
D) Cell membrane
Q24. Which is not a mode of reproduction in bacteria?
A) Binary fission
B) Conjugation
C) Spore formation
D) Budding
Q25. Which bacteria can fix atmospheric nitrogen?
A) Rhizobium
B) Escherichia
C) Salmonella
D) Staphylococcus
Q26. What is the reserve food material of fungi?
A) Starch
B) Glycogen
C) Fat
D) Cellulose
Q27. The edible part of mushrooms is called:
A) Mycelium
B) Fruiting body
C) Spore
D) Thallus
Q28. Zoospores are:
A) Motile asexual spores
B) Non-motile sexual spores
C) Motile sexual spores
D) Resting spores
Q29. Which group does Penicillium belong to?
A) Basidiomycetes
B) Ascomycetes
C) Zygomycetes
D) Deuteromycetes
Q30. A characteristic feature of cyanobacteria is:
A) Presence of chloroplasts
B) Presence of heterocysts
C) Absence of thylakoids
D) Presence of nuclei
Q31. Which phylum consists of ‘club fungi’?
A) Ascomycetes
B) Basidiomycetes
C) Zygomycetes
D) Deuteromycetes
Q32. The term “mycorrhiza” refers to a symbiotic association between a fungus and:
A) Bacteria
B) Alga
C) Plant roots
D) Insects
Q33. Slime molds move by:
A) Cilia
B) Pseudopodia
C) Flagella
D) Legs
Q34. Which of the following is NOT featured in Euglena?
A) Photosynthetic pigment
B) Eyespot
C) Two flagella
D) Cell wall of cellulose
Q35. Which is not a characteristic of Monera?
A) Prokaryotic cell
B) Membrane-bound organelles
C) Unicellularity
D) Binary fission
Q36. Which organism belongs to kingdom Protista?
A) Mushroom
B) Amoeba
C) Bacterium
D) Cyanobacterium
Q37. Fungi obtain nutrients through:
A) Photosynthesis
B) Ingestion
C) Absorption
D) Diffusion
Q38. Which one of the following groups of organisms is exclusively multicellular?
A) Fungi
B) Bryophytes
C) Pteridophytes
D) Protozoa
Q39. Which kingdom has a cell wall made of peptidoglycan?
A) Plantae
B) Monera
C) Fungi
D) Protista
Q40. Which group does yeast belong to?
A) Ascomycetes
B) Basidiomycetes
C) Zygomycetes
D) Deuteromycetes
Q41. Which one is incorrect about viruses?
A) They are acellular
B) Obligate parasites
C) Contain both DNA and RNA in one particle
D) Infect plants and animals
Q42. Which organism causes late blight of potato?
A) Virus
B) Algae
C) Fungi
D) Protozoan
Q43. What is Gonidium?
A) A group of fungi
B) Unicellular algae within colony
C) Spore of moss
D) Hyphal cell
Q44. Lichens are sensitive indicators of:
A) Pollution
B) Humidity
C) Soil fertility
D) Temperature
Q45. The largest group of algae is:
A) Chlorophyceae
B) Rizopoda
C) Phaeophyceae
D) Bacillariophyceae
Q46. Cyanobacteria can be distinguished based on:
A) Presence of cilia
B) Lack of nuclei
C) Heterocysts
D) Chloroplasts
Q47. Hyphae without septa are called:
A) Aseptate
B) Uninucleate
C) Septate
D) Plasmodium
Q48. The example of ascomycetes fungus:
A) Rhizopus
B) Mucor
C) Penicillium
D) Puccinia
Q49. Which class is commonly called ‘imperfect fungi’?
A) Basidiomycetes
B) Ascomycetes
C) Deuteromycetes
D) Zygomycetes
Q50. Which kingdom includes unicellular eukaryotic organisms?
A) Monera
B) Protista
C) Plantae
D) Fungi
Q51. The reserve food in green algae is:
A) Glycogen
B) Starch
C) Fats
D) Oils
Q52. Cell wall made of silica is found in:
A) Blue-green algae
B) Diatoms
C) Mucor
D) Euglena
Q53. Which of the following forms spores for reproduction?
A) Virus
B) Fungi
C) Bacteria
D) All of the above
Q54. Which of the following is called ‘golden algae’?
A) Euglenoids
B) Diatoms
C) Chrysophytes
D) Green algae
Q55. Which bacteria are involved in curdling of milk?
A) Rhizobium
B) Lactobacillus
C) Bacillus
D) Streptococcus
Q56. Resting spores in algae are called:
A) Zygospore
B) Uredospores
C) Oospore
D) Chlamydospore
Q57. Bacteria lacking flagella are termed:
A) Monotrichous
B) Atrichous
C) Lophotrichous
D) Amphitrichous
Q58. Which pigment is present in red algae?
A) Chlorophyll a
B) Phycoerythrin
C) Chlorophyll c
D) Xanthophyll
Q59. Pyrenoids in algae serve as:
A) Light detectors
B) Storage bodies
C) Reproductive organs
D) Defensive structures
Q60. Which kingdom exhibits alternation of generations?
A) Monera
B) Animalia
C) Plantae
D) Fungi
Q61. Which is the sexual phase in the life cycle of Plasmodium?
A) Human
B) Female Anopheles mosquito
C) Male Anopheles mosquito
D) Water
Q62. Which group contains all multicellular, non-motile, eukaryotic, autotrophic organisms?
A) Fungi
B) Plantae
C) Animalia
D) Protista
Q63. The organisms without cell walls are:
A) Fungi
B) Plants
C) Animals
D) Algae
Q64. Which kingdom includes spirogyra?
A) Fungi
B) Protista
C) Plantae
D) Animalia
Q65. Which protist causes malaria?
A) Amoeba
B) Paramecium
C) Plasmodium
D) Euglena
Q66. The green pigment in plants is:
A) Carotene
B) Chlorophyll
C) Xanthophyll
D) Anthocyanin
Q67. The term phycology is related to:
A) Algae
B) Fungi
C) Bacteria
D) Virus
Q68. The group that has single chromosome and cell wall but no nucleus:
A) Monera
B) Protista
C) Fungi
D) Plantae
Q69. Fungi obtain their nutrition from:
A) Light
B) Ready-made organic matter
C) Autotrophy
D) Photosynthesis
Q70. Which one shows maximum diversity?
A) Monera
B) Fungi
C) Protista
D) Plantae
Q71. Symbiotic association between algae and fungi is called:
A) Mycorrhiza
B) Lichen
C) Mutualism
D) Pseudomorph
Q72. Which of the following is called “golden brown algae”?
A) Rhodophyceae
B) Phaeophyceae
C) Dinophyceae
D) Chrysophyceae
Q73. Potato famine was caused by:
A) Bacteria
B) Virus
C) Protozoa
D) Fungi
Q74. Bacterial DNA is present as:
A) Nucleus
B) Plasmid
C) Chromatin
D) Linear chromosome
Q75. Which stage in slime molds produces spores?
A) Plasmodium
B) Amoeboid cells
C) Fruiting body
D) Flagellated cells
Q76. Which of the following is NOT an autotroph?
A) Algae
B) Fungi
C) Cyanobacteria
D) Spirogyra
Q77. Which is the storage polysaccharide in fungi?
A) Glycogen
B) Starch
C) Cellulose
D) Chitin
Q78. Dinoflagellates are mostly:
A) Freshwater
B) Marine
C) Desert
D) Terrestrial
Q79. Which shows well-defined alternation of generation?
A) Virus
B) Algae
C) Fungi
D) Protozoa
Q80. Which of the following infects plants?
A) Bacteriophage
B) Viroid
C) Cyanobacteria
D) Paramecium
Q81. Basidiospores are characteristics of:
A) Basidiomycetes
B) Ascomycetes
C) Deuteromycetes
D) Zygomycetes
Q82. Which is a motile protist?
A) Amoeba
B) Diatom
C) Spirogyra
D) Aspergillus
Q83. Euglenoids are unique because they have:
A) Only plant features
B) Only animal features
C) Both plant and animal features
D) No features
Q84. Which structure is absent in prokaryotes?
A) Cell wall
B) Plasma membrane
C) Nucleoid
D) Mitochondria
Q85. Which algae is used as food?
A) Spirogyra
B) Chlorella
C) Ulothrix
D) Cladophora
Q86. Which of the following causes red tide?
A) Cyanobacteria
B) Rhodophyceae
C) Dinoflagellates
D) Diatoms
Q87. In lichen, algal component is known as:
A) Mycobiont
B) Phycobiont
C) Symbiont
D) Photobiont
Q88. Fungi producing asexual spores on conidiophores are called:
A) Ascomycetes
B) Basidiomycetes
C) Deuteromycetes
D) Zygomycetes
Q89. Which group is called “true fungi”?
A) Zygomycetes
B) Basidiomycetes
C) Deuteromycetes
D) Ascomycetes
Q90. Monera do NOT show:
A) Binary fission
B) Sexual reproduction
C) Plasmid presence
D) Peptidoglycan cell wall
Q91. Viruses were first crystallized by:
A) Stanley
B) Louis Pasteur
C) Jenner
D) Ivanowsky
Q92. Which of the following are known as “living antibiotics”?
A) Fungi
B) Algae
C) Actinomycetes
D) Bacteria
Q93. The organism responsible for fermenting beer is:
A) Penicillium
B) Rhizopus
C) Saccharomyces
D) Agaricus
Q94. Sexual spores in ascomycetes are called:
A) Basidiospores
B) Ascospores
C) Conidia
D) Gemmae
Q95. Who discovered bacteriophages?
A) Twort & d’Herelle
B) Watson & Crick
C) Stanley & Pasteur
D) Haeckel & Whittaker
Q96. The dormant, thick-walled stage in blue-green algae is:
A) Akinete
B) Heterocyst
C) Zoospore
D) Cyst
Q97. “Imperfect” fungi lack which stage?
A) Asexual
B) Sexual
C) Vegetative
D) Spore
Q98. The slimy covering of some bacterial cells is called:
A) Capsule
B) Pilus
C) Cell wall
D) Cytoplasm
Q99. The term “plasmid” was coined by:
A) Lederberg
B) Watson
C) Stanley
D) Dwen
Q100. Which of the following is the largest algae?
A) Chlorella
B) Laminaria
C) Spirogyra
D) Ulothrix