Practice Questions

TLS Online TPP Program

#Question id: 4633

Natural selection is based on all of the following except

#XL - S Microbiology

individuals adapt to their environments and, thereby, evolve.
the best-adapted individuals tend to leave the most offspring.
individuals who survive longer tend to leave more offspring than those who die young.
populations tend to produce more individuals than the environment can support.

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TLS Online TPP Program

#Question id: 32934

#XL - S Microbiology

Barophilic microorganisms thrive in environments with:

TLS Online TPP Program

#Question id: 32935

#XL - S Microbiology

Which amino acids are present in the cell surface glycoproteins of Halobacterium to help maintain water balance in extreme saline environments?

TLS Online TPP Program

#Question id: 32936

#XL - S Microbiology

Decimal reduction time (D-value) is:

TLS Online TPP Program

#Question id: 32937

#XL - S Microbiology

A bacterial culture initially contains 1,000,000 (10⁶) CFU. After 6 minutes of heat treatment at 80°C, the bacterial count decreases to 1,000 (10³) CFU. Calculate the decimal reduction time (D-value) at 80°C.

TLS Online TPP Program

#Question id: 32938

#XL - S Microbiology

Match the following:

TLS Online TPP Program

#Question id: 32939

#XL - S Microbiology

Which of the following statements regarding microbial control is correct?