| Date | May 2011 | Marks available | 3 | Reference code | 11M.3.sl.TZ1.F3 |
| Level | SL | Paper | 3 | Time zone | TZ1 |
| Command term | Describe | Question number | F3 | Adapted from | N/A |
Question
Many food items contain genetically modified ingredients.
Explain what is meant by the term genetically modified food.
Describe two advantages and one concern about the use of genetically modified food.
Markscheme
a food from an animal or plant in which the DNA/genetic material has been altered by artificial means / OWTTE;
advantages [2 max]:
quicker growth / reduced maturation time / more harvest per year;
increase resistance to disease/pests / less herbicides/pesticides / improved
plant/animal health;
more tolerant of climate/extending its range / lower water consumption;
increase in the yield/productivity/feed efficiency;
improve flavour;
incorporate beneficial substances;
increased shelf life;
Examiners report
Many students appeared unaware of the exact meaning of the phrase genetically modified. They were however better briefed on the advantages and possible concerns regarding foodstuffs from such sources.
Many students appeared unaware of the exact meaning of the phrase genetically modified. They were however better briefed on the advantages and possible concerns regarding foodstuffs from such sources.
