GGK Technologies Interview Questions and Answers

pH is a measure of acidity or alkalinity of a solution. Environmental monitoring in microbiology is the process of monitoring the microbial contamination in the environment.

• pH is measured on a scale of 0-14, with 7 being neutral, below 7 acidic and above 7 alkaline

• Environmental monitoring in microbiology involves sampling and testing of air, water, surfaces, and personnel for microbial contamination

• The purpose of environmental monitoring is to identify potential sources of co...read more

Air monitoring is the process of measuring and analyzing the quality of air. Gram+ ve and gram - ve refer to different types of bacteria based on their cell wall structure.

• Air monitoring involves collecting air samples and analyzing them for pollutants, allergens, and other contaminants.

• Gram+ ve bacteria have a thick peptidoglycan layer in their cell wall, while gram - ve bacteria have a thinner peptidoglycan layer.

• Gram+ ve bacteria retain the crystal violet stain in the Gram...read more

UV/Vis spectrometry measures the absorption of light in the UV and visible range to identify and quantify substances.

• UV/Vis spectrometry is based on the principle that molecules absorb light in the UV and visible range.

• The range of UV light is typically 200-400 nm, while the range of visible light is 400-700 nm.

• UV/Vis spectrometry is commonly used in analytical chemistry to identify and quantify substances in a sample.

• For example, it can be used to measure the concentration o...read more

MLT stands for Medical Laboratory Technician. Gram staining is a laboratory technique used to differentiate bacterial species into two groups based on the physical and chemical properties of their cell walls.

• MLT is a healthcare professional who performs laboratory tests and analyses on patient samples.

• They work under the supervision of a medical technologist or pathologist.

• Examples of tests performed by MLTs include blood tests, urinalysis, and microbiology cultures.

• Gram stai...read more

Acid is a substance that donates hydrogen ions (H+) and base is a substance that accepts hydrogen ions (H+).

• Acids have a pH less than 7 while bases have a pH greater than 7.

• Acids taste sour and can cause burns while bases taste bitter and feel slippery.

• Examples of acids include vinegar, lemon juice, and hydrochloric acid while examples of bases include baking soda, soap, and bleach.