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TLS Online TPP Program

#Question id: 34082

Regarding Gram staining and bacterial cell wall characteristics, which statements are correct?

#XL - S Microbiology
  1. Crystal violet stains the thick peptidoglycan layer in Gram-positive bacteria
  2. The outer membrane of Gram-negative bacteria contains lipopolysaccharide (LPS)
  3. Teichoic acids are found in the outer membrane of Gram-negative bacteria
  4. Gram-negative bacteria retain the safranin counterstain
More Questions
TLS Online TPP Program

#Question id: 36020

#XL - U Food Technology

Which of the following statements are correct about sodium nitrite used in meat products?
TLS Online TPP Program

#Question id: 36021

#XL - U Food Technology

Which additives can act as sequestrants (chelating agents) in foods?
TLS Online TPP Program

#Question id: 36022

#XL - U Food Technology

Which food additives are used for controlling microbial spoilage in bakery products?
TLS Online TPP Program

#Question id: 36023

#XL - U Food Technology

Which of the following are true for sweeteners used in foods?
TLS Online TPP Program

#Question id: 36024

#XL - U Food Technology

Which of the following are commonly used radiation sources in food irradiation?
TLS Online TPP Program

#Question id: 36025

#XL - U Food Technology

Which of the following microorganisms are effectively controlled by irradiation?