Microorganisms friends and foe Worksheet-4

Microorganisms friends and foe Worksheet-4

 

Multiple Choice Questions:

  1. Yeast is used in the production of

(A) Sugar                                       (B) Alcohol                

(C) Hydrochloric acid                 (D) Oxygen.

 

  1. The following is an antibiotic

(A) Sodium bicarbonate             (B) Streptomycin

(C) Alcohol                                     (D) Yeast.

 

  1. Carrier of malaria-causing protozoan is

(A) Female anopheles mosquito

(B) cockroach

(C) Housefly

(D) Butterfly.

 

  1. The most common carrier of communicable diseases is

(A) Ant               (B) Housefly     (C) Dragonfly   (D) Spider.

 

  1. The bread or idli dough rises because of

(A) Heat                                          (B) Grinding

(C) Growth of yeast cells            (D) Kneading.

 

  1. The process of conversion of sugar into alcohol is called

(A) Nitrogen fixation                   (B) Moulding

(C) fermentation                          (D) Infection.

 

  1. Tuberculosis is caused by

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

 

  1. Measles and chicken pox is caused by

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

 

  1. Hepatitis A and Polio are caused by

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

 

  1. Malaria is caused by

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

 

Answer key:

  1. (B)

  2. (B)

  3. (A)

  4. (B)

  5. (C)

  6. (C)

  7. (A)

  8. (D)

  9. (D)

  10. (C)