Sem-1 Practical Workshop Test

Which of the following organisms can be identified using a permanent mount technique?

• Viruses
• Bacteria, fungi, and protozoa
• Algae
• Archaea

Micrometry is used to measure which of the following?

• Diameter

• Weight

• perimeter

• all of these

Bacteriological membrane filters with a pore size of 0.22 µm are primarily used for:

• Filtering out larger particles from liquids.
• Enhancing the flavor of beverages.
• Sterilizing liquids by removing bacteria and microorganisms.
• Separating gases from liquids.

Which method is used for determining the size of probiotic cells?

• Electrophoresis
• Chromatography
• Microscopy or flow cytometry
• Spectrophotometry

Which instrument is used for the estimation of the total count (TC) of bread spoilage organisms?

• Haemocytometer

• Colony counter

• Spectrophotometer

• PCR machine

The functionality of an industrial steam sterilizer (Autoclave) is determined by its ability to:

• Filter out bacteria

• Increase microbial growth

• Sterilize bacteriological media

• Reduce temperature

Which test is used to determine the efficiency of pasteurization in milk samples?

• Lactose test
• Bacterial count test
• Phosphatase test
• pH level test

Which of the following media is used for the cultivation and characterization of waterborne indicator organisms?

• TSI agar

• Nutrient agar
• Blood agar
• Potato dextrose agar

Which of the following methods is used to isolate pigmented foodborne pathogens?

• Streak plate Method

• Most probable number method

Which method is used to cultivate industrial enzyme (amylase) producing microorganisms?

• Streak plate method

• Cup plate method

• Pour plate method

• Dilution plating method