Bio 113 viruses bacteria and lower plans pass Question Papers

 Bio 113 viruses bacteria and lower plans

Section A Objective

1. Which of the following is NOT a characteristic of viruses?  

   a) They contain genetic material            

 b) They can reproduce independently  

   c) They have a protein coat            

  d) They are obligate parasites  

2. Bacteria reproduce mainly by:  

   a) Binary fission              b) Meiosis  

   c) Mitosis              d) Budding  

3. Which of the following is a prokaryotic organism?  

   a) Algae               b) Fungi  

   c) Bacteria               d) Moss  

4. Viruses are considered non-living because they:  

   a) Cannot reproduce outside a host  

   b) Do not have genetic material  

   c) Do not have a protein coat  

   d) Are visible under a light microscope  

5. Which of the following is a beneficial role of bacteria?  

   a) Causing diseases  

   b) Decomposing organic matter  

   c) Producing toxins  

   d) Destroying host cells  

6. The study of fungi is called:  

   a) Mycology              b) Virology  

   c) Bacteriology              d) Phycology  

7. Which of the following is a characteristic of algae?  

   a) They are heterotrophic              

   b) They lack chlorophyll  

   c) They are photosynthetic              

  d) They are terrestrial  

8. The cell wall of fungi is made up of:  

   a) Cellulose              b) Chitin  

   c) Peptidoglycan              d) Silica  

9. Which of the following is an example of a lower plant?  

   a) Fern               b) Moss  

   c) Pine tree               d) Rose plant  

10. Viruses that infect bacteria are called:  

    a) Bacteriophages             

    b) Retroviruses  

    c) Prions             

    d) Virophages  

Section B: True or False

11. Viruses can be seen under a light microscope.  

     True or False

12. Bacteria have a well-defined nucleus.  

True or False

13. Algae are autotrophic organisms.  

True or False

14. Fungi reproduce using spores.  

True or False

15. Bryophytes are vascular plants.  

True or False

16. Viruses can infect plants, animals, and bacteria.  

True or False

17. All bacteria are harmful to humans.  

True or False

18. Lichens are a symbiotic relationship between fungi and algae.  

True or False

19. The genetic material of viruses can be DNA or RNA.  

True or False

20. Bacteria play a role in nitrogen fixation.  

Section C: Fill in the Blanks

21. The protein coat of a virus is called a __________.  

22. Bacteria that can survive in extreme environments are called __________.  

23. The process by which bacteria exchange genetic material is called __________.  

24. Fungi store their food in the form of __________.  

25. The study of algae is called __________.  

26. Viruses that infect plants are often transmitted by __________.  

27. The cell wall of bacteria is made up of __________.  

28. The reproductive structures of fungi are called __________.  

29. Bryophytes are also known as __________ plants.  

30. The symbiotic relationship between fungi and plant roots is called __________.  

Section E: Essay Questions

1a. Discuss the classification of viruses based on their genetic material.  

1b. Compare and contrast the structure of bacteria and fungi.  

1c. Explain the ecological and economic importance of algae.  

2a. Describe the life cycle of a bryophyte and its adaptation to terrestrial life.  

2b. Discuss the role of bacteria in biotechnology and industry.  

2c. Label the parts of a bacteriophage.  

3a. Draw and label the structure of a bacterial cell.  

3b. Sketch the life cycle of a typical virus.  

3c. Draw and label the structure of a lichen.