30.
Most mesophilic bacteria are killed if heated in a liquid medium to 145 F for
____________ minutes.
a.
30.
b.
20.
c.
15.
d.
10.
e.
5.
31.
With which class of bacteria is the dairy industry most concerned?
a.
Mesophilic.
b.
Psychrophilic.
c.
Thermophilic.
32.
What effect does decreasing the temperature for growing bacteria have on the
generation time?
a.
Decreases it.
b.
Increases it.
c.
Has no effect on it.
33.
The condition of moisture least conducive to the growth of bacteria is:
a.
70 percent.
b.
50 percent.
c.
30 percent.
d.
15 percent.
MD0703
1-32