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Test on “Bacteria. Viruses”

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1. Bacteria feed: 

1) only by photosynthesis;

2) finished organic substances; 

3) only by organic matter from living organisms;

4) all of these ways.

2. Bacteria belong to the kingdom of: 

1) plants;

2) animals; 

3) fungi; 

4) a separate kingdom.

3. Bacteria are: 

1) multicellular organisms;

2) single-celled organisms that do not have a nucleus;

3) a cell that has a nucleus;

4) a cell that has only the shape of a rod.

4. Ready-made organic compounds are fed by: 

1) green plants; 

2) bacteria; 

3) algae.

4) mosses.

5. Bacteria reproduce by:

1) by means of spores; 

2) by dividing a cell in two;

3) by means of germ cells;

4) by means of fertilization.

6. The outside of a bacterial cell is covered with: 

1) mucus;

2) a capsule; 

3) bristles; 

4) shell.

7. Bacilliform bacteria: 

1) bacilli; 

2) cocci;

3) vibrios; 

4) spirillum.

8. Bacteria are classified as prokaryotes because they: 

1) Have a single chromosome located in the nucleus 

2) have one circular DNA 

3) Reproduce by splitting in two. 

4) Feed only on prepared organic materials

9. Viruses were discovered by:

1) I.I. Mechnikov.

2) Louis Pasteur

3) Ivanovskii D.I.

4) Pavlov I. P. 

10. Diseases caused by bacteria:

1) rabies;

2) Angina;

3) AIDS;

4) influenza

11. bacteria survive adverse conditions in the state of: 

1) zygote 

2) spores 

3) cysts 

4) active organism

12. describe or make a diagram describing the role of bacteria in the cycle of substances in nature. 

13. What is the name of the science that studies viruses?

Option 2

1. Ball-shaped bacteria: 

1) bacilli; 

2) cocci;

3) vibrios; 

4) spirillum.

2. Pathogenic bacteria are: 

1) saprophytes;

2) symbionts; 

3) pathogenic; 

4) blue-green bacteria.

3. Tuberous bacteria are

1) parasites

2) saprotrophs

3) symbionts

4) antagonists

4. On the outside, viruses are covered with: 

1) mucus;

2) a capsule; 

3) bristles; 

4) membrane 

5. Heterotrophs are organisms that feed on:

1) dead organic matter;

2) with the help of another organism; 

3) finished organic matter;   

4) substances dissolved in the soil.

6. Blue-green algae are members of the kingdom: 

1) bacteria; 

2) prokaryotes; 

3) plants;

4) ancient organisms.

7. Bacteriophage is:

1) the AIDS virus

2) a virus that eats a bacterium;

3) a bacterium that eats a virus;

4) disease

8. Which characteristic is unique to the bacterial kingdom? 

1) have a cellular structure

 2) they breathe, feed and reproduce 

3) cells have mitochondria 

4) cells lack a formed nucleus

9. A group of bacteria that live in association with other organisms: 

1) parasites 

2) symbionts 

3) saprotrophs

4) consumers

10. Diseases caused by viruses:

1) tuberculosis;

2) sore throat;

3) rabies;

4) diphtheria

11. Photosynthetic bacteria are: 

1) glandular bacteria 

2) fermentation bacteria 

3) lactic bacteria 

4) blue-green bacteria (cyanobacteria)

12 Describe or make a diagram describing the beneficial role of bacteria in nature and for humans.

13. What is the method of killing bacteria by high temperature?

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