1. Who proposed the Five Kingdom Classification?
- A) Aristotle
- B) Carolus Linnaeus
- C) R.H. Whittaker
- D) M.W. Beijerinek
- Answer: C) R.H. Whittaker
2. Which Kingdom includes organisms with chitin in their cell walls?
- A) Monera
- B) Protista
- C) Fungi
- D) Plantae
- Answer: C) Fungi
3. The cell wall of diatoms is embedded with:
- A) Cellulose
- B) Chitin
- C) Silica
- D) Protein
- Answer: C) Silica
4. Which group of organisms is considered the "chief producers" in oceans?
- A) Cyanobacteria
- B) Diatoms
- C) Dinoflagellates
- D) Euglenoids
- Answer: B) Diatoms
5. What type of genetic material do plant viruses typically have?
- A) Single-stranded DNA
- B) Double-stranded DNA
- C) Single-stranded RNA
- D) Double-stranded RNA
- Answer: C) Single-stranded RNA
6. Lichens are a symbiotic association between:
- A) Algae and bacteria
- B) Algae and fungi
- C) Fungi and bacteria
- D) Algae and protozoa
- Answer: B) Algae and fungi
7. What is the mode of nutrition in Kingdom Animalia?
- A) Autotrophic
- B) Saprophytic
- C) Parasitic
- D) Holozoic
- Answer: D) Holozoic
8. Which of the following is NOT a characteristic of Archaebacteria?
- A) They live in extreme habitats
- B) They lack a cell wall
- C) They have a unique cell wall structure
- D) They can produce methane
- Answer: B) They lack a cell wall
9. The term "red tide" is associated with which of the following?
- A) Cyanobacteria
- B) Dinoflagellates
- C) Euglenoids
- D) Chrysophytes
- Answer: B) Dinoflagellates
10. Mycoplasma are unique among bacteria because they:
- A) Have a thick cell wall
- B) Are autotrophic
- C) Lack a cell wall
- D) Are multicellular
- Answer: C) Lack a cell wall
11. What is the main composition of the fungal cell wall?
- A) Cellulose
- B) Silica
- C) Chitin and polysaccharides
- D) Proteins and lipids
- Answer: C) Chitin and polysaccharides
12. Which Kingdom includes single-celled eukaryotes?
- A) Monera
- B) Protista
- C) Fungi
- D) Plantae
- Answer: B) Protista
13. Which process is common in bacterial reproduction?
- A) Conjugation
- B) Binary fission
- C) Budding
- D) Spore formation
- Answer: B) Binary fission
14. Archaebacteria that thrive in highly salty environments are called:
- A) Thermoacidophiles
- B) Methanogens
- C) Halophiles
- D) Cyanobacteria
- Answer: C) Halophiles
15. What type of reproduction is seen in Kingdom Protista?
- A) Only asexual
- B) Only sexual
- C) Asexual and sexual
- D) Only binary fission
- Answer: C) Asexual and sexual
16. Which organism lacks both DNA and RNA?
- A) Bacteria
- B) Viruses
- C) Prions
- D) Viroids
- Answer: C) Prions
17. Which group includes organisms known as "imperfect fungi"?
- A) Ascomycetes
- B) Basidiomycetes
- C) Deuteromycetes
- D) Phycomycetes
- Answer: C) Deuteromycetes
18. Which organisms are known to form diatomaceous earth?
- A) Dinoflagellates
- B) Euglenoids
- C) Diatoms
- D) Cyanobacteria
- Answer: C) Diatoms
19. The dikaryophase is a characteristic of which kingdom?
- A) Fungi
- B) Protista
- C) Plantae
- D) Animalia
- Answer: A) Fungi
20. Which component in lichens performs photosynthesis?
- A) Mycobiont
- B) Phycobiont
- C) Hyphae
- D) Fruiting body
- Answer: B) Phycobiont
21. The alternation of generations is observed in which Kingdom?
- A) Monera
- B) Plantae
- C) Protista
- D) Fungi
- Answer: B) Plantae
22. What type of spores are produced in basidiomycetes?
- A) Ascospores
- B) Zygospores
- C) Conidia
- D) Basidiospores
- Answer: D) Basidiospores
23. Which organisms can fix atmospheric nitrogen?
- A) Diatoms
- B) Nostoc and Anabaena
- C) Euglena and Paramoecium
- D) Penicillium and Aspergillus
- Answer: B) Nostoc and Anabaena
24. In the five kingdom classification, which kingdom includes prokaryotes?
- A) Protista
- B) Monera
- C) Plantae
- D) Animalia
- Answer: B) Monera
25. Which of the following is a characteristic feature of Euglenoids?
- A) Rigid cellulose walls
- B) Presence of pellicle
- C) Externally formed silica shell
- D) Lack of flagella
- Answer: B) Presence of pellicle
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