Biology Major Field Test Questions and
Answers
Adaptive vs. Innate Immune Response - Answer-Adaptive -
"specific response"
Has immunological memory
Later response (3-7 days)
Uses B and T cells
Effectiveness increases with exposure
Innate-
"nonspecific response"
1st line of defense
Respon...
Bacterial Growth Stage 3: Stationary Phase - Answer✔✔-Population growth ceases and the
growth curve levels off
Bacterial Growth Stage 4: Death Phase - Answer✔✔-Decrease in viable microorganisms due to
depletion of sources (media, oxygen, food)
Acidophiles - Answer✔✔-Microorganisms whose optimum growth is between a pH of 0.0-5.5
Fungi & Algae
Neutrophiles - Answer✔✔-Microorganisms whose optimum growth is between a pH of 5.5 - 8.0
Most bacteria
Alkalophiles - Answer✔✔-Microorganisms whose optimum growth is between 8.5-11.5
Buffers - Answer✔✔-Prevent drastic pH changes
Normally a phosphate
Psychophiles - Answer✔✔-Microorganisms whose optimum growth is at low temperatures (0-
20C)
Mesophiles - Answer✔✔-Microorganisms whose optimum growth is at temperatures between
15-45C
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