Microorganisms friends and foe Worksheet-7

Microorganisms friends and foe Worksheet-7

 

Multiple Choice Questions:

  1. Microorganism are classifies under ______ group.

(A) One              (B) Two             (C) Three           (D) Four

 

  1. Viruses reproduce only inside the cells of the ______.

(A) Plants          (B) Animals      (C) Bacteria      (D) Host

 

  1. Which of the following disease is caused by virus?

(A) Polio                                         (B) Tuberculosis

(C) Malaria                                    (D) Dysentery

 

  1. Which of the following disease is caused by bacteria?

(A) Dysentery   (B) AIDS            (C) Typhoid       (D) Malaria

 

  1. Which of the following disease is caused by protozoan?

(A) Dysentery                                (B) Cholera                

(C) Food poisoning                      (D) Tuberculosis

 

  1. In agriculture, _____ are used to increase soil fertility by fixing nitrogen.

(A) Virus            (B) Protozoan   (C) Bacteria      (D) Fungi

 

  1. ______ promotes the formation of curd.

(A) Rhizobium                             (B) Lactobacillus

(C) Chlorella                                 (D) All

 

  1. Which of the following microorganisms can be multi-cellular?

(A) Protozoan   (B) Virus            (C) Fungi           (D) Bacteria

 

  1. ______ is used for commercial production of alcohol and wine.

(A) Yeast            (B) Rhizobium (C) HIV              (D) Amoeba

 

  1. Process of conversion of sugar into alcohol is known as ______.

(A) Nitrogen fixation                   (B) Fermentation

(C) Curdling of milk                    (D) Pasteurization

 

Answer key:

  1. (D)

  2. (D)

  3. (A)

  4. (C)

  5. (A)

  6. (C)

  7. (B)

  8. (C)

  9. (A)

  10. (B)