PRE-LAB QUESTIONS 1. Some members of the Domain Bacteria 7. Gram stain is used t

Question

PRE-LAB QUESTIONS 1. Some members of the Domain Bacteria 7. Gram stain is used to distinguish between have (a) a nucleus (b) membrane-bound organelles (c) chloroplasts (d) photosynthetic ability different (a) bacteria (b) protistans (c) dinoflagellates (d) all of the above 2 A pathogen is 8. Those organisms that are covered by (a) a disease (b) an organism that causes a disease (c) a substance that kills bacteria (d) the same as a heterocyst numerous, tiny locomotory structures belong to the phylum (a) Euglenozoa (c) Amoebozoa (d) Ciliata 3. Which of the following is true? (a) All bacteria are autotrophic (b) All protists are heterotrophic (c) Oscillatoria is photoautotrophic (d) Trypanosoma is photoautotrophic 9. A vector is (a) an organism that causes disease (b) a disease (c) a substance that prevents disease (d) an organism that transmits a disease 4 Which organisms are characterized as decomposers? (a) bacteria (b) protozoans (c) amoebas (d) sporozoans causing organism -10. The organism that causes malaria is (a) a pathogen (b) Plasmodium vicax (c) carried by a mosquito (d) all of the above 5. Organisms capable of nitrogen fixation (a) include some bacteria include some cyanobacteria may live as symbionts with other organisms 11. Which of these organisms (or parts (b) (e) of the organisms) might you find as an ingredient in toothpaste? (a) euglenoids (b) diatoms (c) dinoflagellates (d) stoneworts (d) all of the above -6. A spherical bacterium is called a - (a) bacillus (b) coccus (c) spirillunm (d) none of the above

Explanation / Answer

1. Answer is d) Photosynthetic activity.

2. Answer is B) an organism that causes a disease..

3 answer is d) trypanosoma is photoautotrophic

4 answer is à) bacteria

5 answer is d) all of the above

6 answer is B) coccus

7 answer is a) bacteria

8 ,9 and 10 not visible well..

11 answer is B) diatoms

12 answer is a) dinoflagellates.

13 answer is a) red algae

14 answer is B) algae

15 answer is d) all of the above

16 answer is d) both a and B

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