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Home ‣ Microbiology ‣ Industrially Useful Microbial Processes See What Others Are Saying!
- Question
The precursor used for production of vitamin B12 by Streptomyces olivaceus is
Options- A. cobalt chloride
- B. cobalt sulphate
- C. calcium chloride
- D. calcium sulphate
- Correct Answer
- cobalt chloride
- 1. The amount of phagocytosis done by the Plasmodium
Options- A. is greater than by the water mold mycelium
- B. is lesser than by the water mold mycelium
- C. is equal to by the water mold mycelium
- D. none of the above Discuss
- 2. Which of the following can be identified by milk ring test?
Options- A. Brucellosis
- B. Salmonellosis
- C. Bovine tuberculosis
- D. All of these Discuss
- 3. An organism in the Deuteromycota has all the following except
Options- A. asexual spores
- B. absorptive nutrition
- C. ascospores, basidiospores or zygospores
- D. a nucleus Discuss
- 4. Which of the following algal divisions is characterized by possession of chlorophylls A and B, starch as the energy storage material, cellulosic cell walls and live in freshwater and marine habitats?
Options- A. Chlorophyta
- B. Chrysophyta
- C. Phaeophyta
- D. Pyrrophyta Discuss
- 5. Which of the following is correct?
Options- A. All members of Sac fungus are also members of chemo-lithotrophic autotroph, but not all members of chemolithotrophic autotroph are members of Sac fungus.
- B. All members of chemolithotrophic autotroph are also members of Sac fungus, but not all members of Sac fungus are members of chemolithotrophic autotroph.
- C. All members of Sac fungus are members of chemolithotrophic autotroph, and all members of chemolithotrophic autotroph are members of Sac fungus.
- D. none of the above Discuss
- 6. Which eukaryotic RNA polymerase makes tRNA's?
Options- A. RNA polymerase 1
- B. RNA polymerase 2
- C. RNA polymerase 3
- D. Any of these Discuss
- 7. Free energy change (?G) of a reaction is referred as the amount of energy
Options- A. liberated during reaction
- B. taken up during reaction
- C. liberated or taken up during reaction
- D. none of these Discuss
- 8. The commonly used media for submerged bacterial fermentation at commercial scale is
Options- A. beet molasses
- B. liver extract
- C. germinated seed
- D. none of these Discuss
- 9. Which of the following is correct?
Options- A. A Winogradsky column is used to filter out microorganisms from a water sample taken from a deep black smoker
- B. A Winogradsky column is used to demonstrate interactions and gradients that occur in aquatic environments
- C. Both (a) and (b)
- D. A Winogradsky column is used to filter out microorganisms from non-aquatic environments Discuss
- 10. Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except
Options- A. Clostridium
- B. Rhodospirillum
- C. Chlorobium
- D. Escherichia Discuss
More questions
Correct Answer: is greater than by the water mold mycelium
Correct Answer: Brucellosis
Correct Answer: ascospores, basidiospores or zygospores
Correct Answer: Chlorophyta
Correct Answer: All members of Sac fungus are members of chemolithotrophic autotroph, and all members of chemolithotrophic autotroph are members of Sac fungus.
Correct Answer: RNA polymerase 3
Correct Answer: liberated or taken up during reaction
Correct Answer: beet molasses
Correct Answer: A Winogradsky column is used to demonstrate interactions and gradients that occur in aquatic environments
Correct Answer: Escherichia
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