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- Question
Composting is one of the oldest forms of disposal of waste. It is the natural process of decomposition of organic waste that yields manure or compost. One of the following is added to the compost to get better results?
Options- A. Ants
- B. Bugs
- C. Snakes
- D. Worms
- Correct Answer
- Worms
- 1. Which of the following is responsible for the corrosion problem?
Options- A. Iron bacteria
- B. Sulfur bacteria
- C. Slime forming bacteria
- D. All of these Discuss
- 2. When the fermentation of fructose results in the bitter product mannitol, the fermentation is sometime termed as-
Options- A. mannkic
- B. mannitic
- C. amertume
- D. none of these Discuss
- 3. Zooxanthellae are algal symbiont that live within coral reef animals. These algae belong to
Options- A. chlorophyta
- B. chrysophyta
- C. pyrrophyta
- D. rhodophyta Discuss
- 4. Colorless rots in eggs is caused by
Options- A. Pseudomonas alcaligenes
- B. Pseudomonas fluorescens
- C. both (a) and (b)
- D. none of these Discuss
- 5. The presence of viable non-spore forming bacteria in heat process canned foods indicates leakage of the container. Which of the following is responsible for the spoilage of leaky cans?
Options- A. Plant equipment
- B. Cooling water
- C. Highly acidic medium
- D. High sugar content Discuss
- 6. The plasmids can be eliminated from a cell by the process known as
Options- A. curing
- B. breaking
- C. fixing
- D. expulsion Discuss
- 7. Aerobic catabolism of glucose yields how much energy (ATP synthesized) relative to glucose fermentation?
Options- A. Slightly less
- B. About the same
- C. Twice as much
- D. More than 10 times as much Discuss
- 8. Which of the following(s) bacteria belong to the family Entero-bacteriaceae?
Options- A. Yersinia
- B. Shigella
- C. Salmonella
- D. All of these Discuss
- 9. Which phage always carries a small piece of E.coli genome?
Options- A. Lambda
- B. Mu
- C. T4
- D. T3 Discuss
- 10. Which of the following acid will have higher bacteriostatic effect at a given pH?
Options- A. Acetic acid
- B. Tartaric acid
- C. Citric acid
- D. Maleic acid Discuss
More questions
Correct Answer: Sulfur bacteria
Correct Answer: mannitic
Correct Answer: pyrrophyta
Correct Answer: Pseudomonas alcaligenes
Correct Answer: Cooling water
Correct Answer: curing
Correct Answer: More than 10 times as much
Correct Answer: All of these
Correct Answer: Mu
Correct Answer: Acetic acid
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