8 वी - महाराष्ट्र बोर्ड - Science टेस्ट - चॅप्टर 1 - Living World and Classification of Microbes
8 वी - महाराष्ट्र बोर्ड - Science टेस्ट - Living World and Classification of Microbes
Q1. Who proposed the five-kingdom system of classification?
A) Robert Whittaker
B) Carl Linnaeus
C) Robert Hooke
D) Louis Pasteur
Q2. In which year did Robert Whittaker propose the five-kingdom classification?
A) 1969
B) 1950
C) 1980
D) 1850
Q3. Which of the following is NOT a criteria used by Whittaker for classification?
A) Complexity of cell structure
B) Mode of nutrition
C) Lifestyle
D) Color of the organism
Q4. According to Whittaker, into which kingdom are prokaryotic organisms classified?
A) Monera
B) Protista
C) Fungi
D) Plantae
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Q5. Which kingdom includes unicellular eukaryotic organisms?
A) Monera
B) Protista
C) Fungi
D) Animalia
Q6. Organisms belonging to Kingdom Fungi show which mode of nutrition?
A) Autotrophic
B) Saprophytic (Absorption from dead matter)
C) Holozoic
D) Photosynthetic
Q7. What is the primary component of the cell wall of fungi?
A) Cellulose
B) Chitin
C) Pectin
D) Lignin
Q8. Which of the following is an autotrophic, eukaryotic, multicellular organism?
A) Bacteria
B) Amoeba
C) Plant
D) Fungus
Q9. What is the approximate size range of bacteria?
A) 1 µm to 10 µm
B) 10 µm to 100 µm
C) 1 nm to 10 nm
D) 100 µm to 1 mm
Q10. How do bacteria primarily reproduce?
A) Budding
B) Simple binary fission
C) Spore formation
D) Sexual reproduction
Q11. Under favorable conditions, bacteria can double their number in how many minutes?
A) 20 minutes
B) 5 minutes
C) 60 minutes
D) 120 minutes
Q12. To which kingdom does Amoeba belong?
A) Monera
B) Protista
C) Fungi
D) Plantae
Q13. Which organism uses pseudopodia for locomotion?
A) Paramoecium
B) Amoeba
C) Euglena
D) Bacteria
Q14. Which protozoan causes malaria?
A) Plasmodium vivax
B) Entamoeba histolytica
C) Euglena
D) Amoeba
Q15. Which protozoan contains chloroplasts and exhibits autotrophic nutrition?
A) Amoeba
B) Paramoecium
C) Euglena
D) Plasmodium
Q16. What is the approximate size of protozoa?
A) Around 200 µm
B) Around 10 µm
C) Around 1 nm
D) Around 10 nm
Q17. Which of the following is an example of a fungus?
A) Chlorella
B) Baker's yeast
C) Cyanobacteria
D) Spirogyra
Q18. What is the approximate size range of fungi?
A) 10 µm to 100 µm
B) 1 µm to 10 µm
C) 1 nm to 100 nm
D) 1 mm to 10 mm
Q19. Algae are classified as which type of organisms based on nutrition?
A) Heterotrophic
B) Autotrophic
C) Saprophytic
D) Parasitic
Q20. Which of the following is an example of unicellular algae?
A) Spirogyra
B) Chlorella
C) Mushroom
D) Mucor
Q21. What is the approximate size range of viruses?
A) 10 nm to 100 nm
B) 1 µm to 10 µm
C) 10 µm to 100 µm
D) 1 mm to 5 mm
Q22. Why are viruses generally not considered truly 'living' by many microbiologists?
A) They do not have a cellular structure
B) They cannot reproduce inside a host
C) They do not contain genetic material
D) They are visible to the naked eye
Q23. A virus consists of a long molecule of DNA or RNA surrounded by a coat of what?
A) Carbohydrates
B) Proteins
C) Lipids
D) Cellulose
Q24. Which virus attacks bacteria?
A) Bacteriophage
B) Influenza virus
C) HIV
D) Tomato wilt virus
Q25. Which disease in cattle is caused by a virus?
A) Picorna virus infection
B) Tuberculosis
C) Cholera
D) Malaria
Q26. Which of the following is a prokaryotic microbe?
A) Bacteria
B) Protozoa
C) Fungi
D) Algae
Q27. Tomato wilt is a type of ______ disease.
A) Viral
B) Bacterial
C) Fungal
D) Protozoan
Q28. Organisms in Kingdom Monera lack which of the following?
A) Distinct nucleus and cell organelles
B) Plasma membrane
C) Cytoplasm
D) Ribosomes
Q29. The cell wall of algae is primarily made of ________.
A) Chitin
B) Cellulose
C) Proteins
D) Peptidoglycan
Q30. Who divided living organisms into Prokaryotes and Eukaryotes in 1925?
A) Chatton
B) Haeckel
C) Copeland
D) Linnaeus
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