MCB 101 Lab 4: Enzymes & Adaptations
Q & As (Verified Answers) 2026 Update
How will you inoculate the plates used in the Enzymes and
Environmental Adaptations laboratory exercise?
A. Spread culture using your "hockey stick" spreader
B. In a single line using a swab
C. Streak with your inoculating loop
D. Streak with a swab - Correct Answers ✅B. In a single
line using a swab
Gelatin Agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅Ammonium sulfate
Egg Yolk Agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅None
Starch agar developing agent:
, MCB 101 Lab 4: Enzymes & Adaptations
Q & As (Verified Answers) 2026 Update
Iodine
Ammonium sulfate
None - Correct Answers ✅Iodine
DNA w/ methyl green agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅None
Skim milk agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅None
What indicates a positive lipase tests?
A. Presence of a clearing
B. Concentration and enhancement of green color
C. Formation of white precipitate
D. Presence of a sheen reminiscent of oil on water
Q & As (Verified Answers) 2026 Update
How will you inoculate the plates used in the Enzymes and
Environmental Adaptations laboratory exercise?
A. Spread culture using your "hockey stick" spreader
B. In a single line using a swab
C. Streak with your inoculating loop
D. Streak with a swab - Correct Answers ✅B. In a single
line using a swab
Gelatin Agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅Ammonium sulfate
Egg Yolk Agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅None
Starch agar developing agent:
, MCB 101 Lab 4: Enzymes & Adaptations
Q & As (Verified Answers) 2026 Update
Iodine
Ammonium sulfate
None - Correct Answers ✅Iodine
DNA w/ methyl green agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅None
Skim milk agar developing agent:
Iodine
Ammonium sulfate
None - Correct Answers ✅None
What indicates a positive lipase tests?
A. Presence of a clearing
B. Concentration and enhancement of green color
C. Formation of white precipitate
D. Presence of a sheen reminiscent of oil on water