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- Question
The filtering medium of trickling filters is coated with microbial flora, known as
Options- A. zoological film
- B. geological film
- C. zooglocal film
- D. none of these
- Correct Answer
- zooglocal film
- 1. The compound(s) which act(s) as metabolic antagonist is/are
Options- A. trimethoprim
- B. sulphonamides
- C. both (a) and (b)
- D. none of these Discuss
- 2. Which of the following has more tolerance for acidic pH (lower pH)?
Options- A. Yeast and moulds
- B. Bacteria
- C. E. coli
- D. None of these Discuss
- 3. The chlorophyll molecules used by eucaryotes and cyanobacteria absorb radiant energy in the____________portion(s) of the visible spectrum.
Options- A. red
- B. green
- C. red and blue
- D. green and ultraviolet Discuss
- 4. Peptidoglycan is also known as
Options- A. N-acetyl muramic acid
- B. murein mucopeptide
- C. N acetylglucosamine
- D. mesodiaminopimetic acid Discuss
- 5. Which of the following micro organism utilizes lactose as a carbon source in production of lactic acid from whey media?
Options- A. Lactobacillus bulgaricus
- B. Lactobacillus delbrueckii
- C. Lactobacillus pentosus
- D. Leuconostoc mesenteroides Discuss
- 6. Which type of interferon is produced by virus-infected cells?
Options- A. ?
- B. ?
- C. Both (a) and (b)
- D. None of these Discuss
- 7. The protein from which hook and filaments of flagella are composed of, is
Options- A. keratin
- B. flagellin
- C. gelatin
- D. casein Discuss
- 8. Who coined the word enzyme first?
Options- A. Kuhne
- B. Pasteur
- C. Liebig
- D. Buchner Discuss
- 9. The cell wall of
Options- A. gram-positive bacteria are thicker than gram-negative bacteria
- B. gram-negative bacteria are thicker than gram-positive bacteria
- C. both have same thickness but composition is different
- D. none of these Discuss
- 10. Which of the following reflects the correct order of events that take place during the multiplication of a virus?
Options- A. Attachment, penetration, maturation, biosynthesis, release
- B. Penetration, attachment, biosynthesis, maturation, release
- C. Attachment, penetration, biosynthesis, maturation, release
- D. Attachment, release, biosynthesis, maturation, penetration Discuss
More questions
Correct Answer: both (a) and (b)
Correct Answer: Yeast and moulds
Correct Answer: red and blue
Correct Answer: murein mucopeptide
Correct Answer: Lactobacillus bulgaricus
Correct Answer: Both (a) and (b)
Correct Answer: flagellin
Correct Answer: Kuhne
Correct Answer: gram-positive bacteria are thicker than gram-negative bacteria
Correct Answer: Attachment, penetration, biosynthesis, maturation, release
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