Practice Questions

TLS Online TPP Program

#Question id: 3782

In his work with pneumonia-causing bacteria and mice, Griffith found that

#XL - Q Biochemistry

the protein coat from pathogenic cells was able to transform nonpathogenic cells.
heat-killed pathogenic cells caused pneumonia.
some substance from pathogenic cells was transferred to nonpathogenic cells, making them pathogenic.
the polysaccharide coat of bacteria caused pneumonia.

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TLS Online TPP Program

#Question id: 35993

#XL - U Food Technology

Which of the following are true about food irradiation?

TLS Online TPP Program

#Question id: 35994

#XL - U Food Technology

Which of the following are hurdles commonly used in hurdle technology?

TLS Online TPP Program

#Question id: 35995

#XL - U Food Technology

Which of the following are non-thermal food processing methods?

TLS Online TPP Program

#Question id: 35996

#XL - U Food Technology

A thermal process at 121 °C reduces a microbial population from 10⁶ to 10² in 3.00 minutes. What is the D-value at 121 °C?

TLS Online TPP Program

#Question id: 35997

#XL - U Food Technology

For the same organism, D _121∘C=0.75 min and D _111∘C=7.50 min. What is the Z-value?

TLS Online TPP Program

#Question id: 35998

#XL - U Food Technology

Which of the following statements are correct?