Q1. Which type of bacteria plays a crucial role in the nitrogen cycle by oxidizing ammonia to nitrites?A. CyanobacteriaB. NitrosomonasC. RhizobiumD. Clostridium
Q2. Which of the following is a fungal disease caused by a member of Basidiomycetes?A. Rust diseaseB. Ergot diseaseC. RingwormD. Powdery mildew
Q3. Which of the following organisms is an example of a ciliated protozoan?A. AmoebaB. EuglenaC. PlasmodiumD. Paramecium
Q4. Which of the following statements about prions is incorrect?A. Prions are infectious proteins.B. Prions contain both DNA and RNA.C. Prions cause neurodegenerative diseases.D. Prions lack a cellular structure.
Q5. Which of the following statements about protozoans is incorrect?A. All protozoans are unicellular.B. Protozoans show both autotrophic and heterotrophic modes of nutrition.C. Protozoans reproduce only sexually.D. Protozoans move using structures like flagella, cilia, or pseudopodia.
Q6. Which of the following fungal classes includes yeast?A. PhycomycetesB. AscomycetesC. BasidiomycetesD. Deuteromycetes
Q7. Which of the following organisms is used in genetic and biochemical research?A. RhizopusB. NeurosporaC. AspergillusD. Mucor
Q8. Which of the following statements about lichens is correct?A. Lichens are formed by a symbiotic association of fungi and algae.B. Lichens grow well in highly polluted environments.C. Lichens cannot survive in extreme conditions.D. Fungi in lichens perform photosynthesis.
Q9. How do slime moulds resemble both fungi and protozoa?A. They photosynthesize like plantsB. They show amoeboid movement but form sporesC. They lack a cell membraneD. They reproduce sexually like animals
Q10. Which of the following statements about cyanobacteria is incorrect?A. Cyanobacteria perform oxygenic photosynthesis.B. Cyanobacteria contain membrane-bound organelles.C. Cyanobacteria are capable of nitrogen fixation.D. Cyanobacteria are classified under Kingdom Monera.