Q1. Which of the following is an example of a saprophytic protist?A. Slime mouldsB. EuglenoidsC. DinoflagellatesD. Diatoms
Q2. Which of the following is a characteristic feature of archaebacteria?A. Presence of peptidoglycan in their cell wallsB. Ability to survive in extreme environmentsC. Obligate intracellular parasitesD. Photosynthetic nutrition
Q3. Which of the following statements about lichens is incorrect?A. Lichens are a symbiotic association of fungi and algae.B. Lichens are sensitive to air pollution.C. Fungi in lichens provide food through photosynthesis.D. Lichens can grow in extreme environments.
Q4. Which of the following fungal groups is also called sac fungi?A. PhycomycetesB. AscomycetesC. BasidiomycetesD. Deuteromycetes
Q5. Which feature of diatoms makes them ecologically important in aquatic ecosystems?A. They act as decomposersB. They fix atmospheric nitrogenC. They form the primary producers in the food chainD. They cause red tides
Q6. Which of the following statements about Mycoplasma is correct?A. Mycoplasma have a well-defined cell wall.B. Mycoplasma are the smallest free-living organisms.C. Mycoplasma contain peptidoglycan in their cell walls.D. Mycoplasma are obligate intracellular parasites.
Q7. Which kingdom includes both unicellular and multicellular heterotrophic organisms?A. MoneraB. FungiC. PlantaeD. Animalia
Q8. Which of the following is an example of a free-living nitrogen-fixing bacterium?A. RhizobiumB. AzotobacterC. MycobacteriumD. Clostridium
Q9. Which of the following statements about prions is correct?A. Prions are infectious proteins.B. Prions contain nucleic acids.C. Prions have a cellular structure.D. Prions infect only plants.
Q10. Which of the following organisms causes sleeping sickness?A. PlasmodiumB. TrypanosomaC. EntamoebaD. Gonyaulax