DP Chemistry (last assessment 2024)
Question 19N.3.sl.TZ0.8c
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.sl.TZ0.8c |
| Level | sl | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 1]
19N.3.sl.TZ0.8c
Enzymes are biological catalysts.
(c)
State one use of enzymes in reducing environmental problems.
[1]
Markscheme
breakdown of oil spills/industrial/sewage waste/plastics
OR
production of alternate sources of energy «such as bio diesel»
OR
involve less toxic chemical pathway «in industry» ✔
NOTE: Accept “«enzymes in» biological detergents can improve energy efficiency”.
