Discussion
Home ‣ Microbiology ‣ Microbial Metabolism See What Others Are Saying!
- Question
The bacteriochlorophylls used by the anoxygenic bacteria have absorbance maxima located in the_____portion(s) of the spectrum.
Options- A. green
- B. blue
- C. ultraviolet
- D. infrared
- Correct Answer
- infrared
- 1. When acetate is the sole source of carbon for some microorganisms, the cycle which is used, is called
Options- A. pentose phosphate pathway
- B. glycolyic pathway
- C. glyoxylate pathway
- D. oxaloacetate pathway Discuss
- 2. Organisms with amoeboid cells that move within a network of mucous tracks using a typical gliding motion belong to which phylum of Protozoa?
Options- A. Labyinthomorpha
- B. Microspora
- C. Apicomplexa
- D. Myxozoa Discuss
- 3. Under what conditions food poisoning bacteria may grow and produce toxins in vegetables?
Options- A. When thawed vegetables are held at refrigerated temperature for any considerable period
- B. When thawed vegetables are held at room temperature for any considerable period
- C. When thawed vegetables are held below refrigerated temperature for any considerable period
- D. None of the above Discuss
- 4. Why the bacterium Treponema pallidum is difficult to culture?
Options- A. Because it requires a great deal of water to reproduce
- B. Because it is unable to use carbohydrates as an energy source
- C. Because it lacks the genes needed for TCA cycle and oxidative phosphorylation
- D. Because it requires extremely low temperature at which water freezes Discuss
- 5. The two major components of viruses are
Options- A. fat and protein
- B. nucleic acid and protein
- C. carbohydrate and nucleic acid
- D. fat and carbohydrate Discuss
- 6. Enumeration of microorganism refers to
Options- A. either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar, or non-selective plate, depending on the test
- B. either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar
- C. non-selective plating, depending on the test
- D. none of the above Discuss
- 7. Why Deinococcus radiodurans is able to survive massive exposure to radiation?
Options- A. Because it produces a thick shell which acts as a shield from the radiation
- B. Because it has unique DNA repair mechanisms
- C. Because its cellwall contains radioactive elements
- D. Because it has many copies of genes encoding DNA repair Discuss
- 8. The uncontrolled proliferation of cells is termed as
Options- A. hyperplasia
- B. anaplasia
- C. metastasis
- D. all of these Discuss
- 9. The Acrasiomycota differ from the Myxomycota
Options- A. in their mode of nutrition
- B. in their cellular organization
- C. Both (a) and (b)
- D. none of the above Discuss
- 10. Bacitracin, an antibiotic similar to penicillin, is produced by
Options- A. Bacillus polymyxa
- B. Streptomyces erythreus
- C. Bacillus licheniformis
- D. Aspergillus fumigatus Discuss
More questions
Correct Answer: glyoxylate pathway
Correct Answer: Labyinthomorpha
Correct Answer: When thawed vegetables are held at room temperature for any considerable period
Correct Answer: Because it lacks the genes needed for TCA cycle and oxidative phosphorylation
Correct Answer: nucleic acid and protein
Correct Answer: either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar, or non-selective plate, depending on the test
Correct Answer: Because it has many copies of genes encoding DNA repair
Correct Answer: hyperplasia
Correct Answer: in their cellular organization
Correct Answer: Bacillus licheniformis
Comments
There are no comments.More in Microbiology:
Programming
Copyright ©CuriousTab. All rights reserved.