Officer L1 Interview Questions and Answers

Gram-positive bacteria retain the crystal violet stain, while gram-negative bacteria do not.

• Gram-positive bacteria: Staphylococcus aureus, Streptococcus pneumoniae, Enterococcus faecalis

• Gram-negative bacteria: Escherichia coli, Pseudomonas aeruginosa

Fermentation process involves the conversion of organic substances into simpler compounds by the action of enzymes or microorganisms.

• Fermentation is a metabolic process that produces energy without the need for oxygen.

• Types of fermenters include batch fermenters, continuous fermenters, and fed-batch fermenters.

• Batch fermenters are used for small-scale production and involve a single batch of substrate being fermented.

• Continuous fermenters allow for a continuous supply of subs...read more