DP Chemistry (last assessment 2024)

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Question 19N.3.sl.TZ0.c

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.sl.TZ0.c
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.c

Enzymes are biological catalysts.

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”.

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