Top 250+ Solved Bacteria and Gram Staining MCQ Questions Answer

From 196 to 210 of 263

Q. Other than the sample (specimen) theremaining portion is stained then it is called

a. Simple staining

b. Negative staining

c. Differential staining

d. None of these

  • b. Negative staining

Q. If more than one stain is used, suchstaining is called

a. Simple staining

b. Negative staining

c. Differential staining

d. None of these

  • c. Differential staining

Q. ‘Fluorescence’ was first observed by

a. Kohler

b. Coons

c. Both a and b

d. None of these

  • a. Kohler

Q. By using fluorescence property fluorescentantibody technique was developed by

a. Kohler

b. Coons

c. Both and b

d. None of these

  • b. Coons

Q. During staining for Electron Microscopy, the method which improves contrast of specimen is

a. Positive staining

b. Negative staining

c. Shadow staining

d. None of these

  • b. Negative staining

Q. The inorganic forms of nitrogen, whichare accepted by bacteria are

a. Nitrate

b. Nitrites

c. Ammonium salts

d. All of these

  • d. All of these

Q. Archaeo bacteria are known as

a. Halophiles

b. Red extreme halophiles

c. Osmophiles

d. Extreme thermophiles

  • b. Red extreme halophiles

Q. Nitrite is converted into nitrate by thebacteria

a. Nitrosomona

b. Nitrosocytes

c. Nitrobacter

d. Azatobacter

  • c. Nitrobacter

Q. Sulphur oxidizing bacteria is

a. Alcaligene

b. Pseudomonas

c. Thiobacillus

d. None of these

  • c. Thiobacillus

Q. Bacillus Schlegelli is

a. Hydrogen – Oxydising bacteria

b. Sulphur – Oxydising bacteria

c. Iron-Oxidising bacteria

d. Nitrite oxidizing bacteria

  • a. Hydrogen – Oxydising bacteria

Q. The group of bacteria which deopends on organic sources in nature for their energy requirements. They are said to be

a. Chemotroph

b. Phototrophs

c. Heterotrophes

d. Organotrophs

  • c. Heterotrophes

Q. Majority of bacteria are

a. Saprophyte

b. Symbionts

c. Commensals

d. Parasites

  • d. Parasites

Q. Symbionts are

a. Bacteria in symbiotic association

b. The group of fungi in symbiotic association

c. The groups participating in symbiotic association

d. All of these

  • c. The groups participating in symbiotic association

Q. The best example for symbiotic association is

a. E.coli in intestine of man

b. Lichens

c. Normal floraof skin

d. All of the above

  • b. Lichens

Q. The enzymes responsible for decomposition is

a. Lipolytic

b. Proteolytic

c. Lysozyme

d. Both a and b

  • b. Proteolytic
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