DP Biology (last assessment 2024)

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Question 23M.2.SL.TZ1.2a

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Date May 2023 Marks available [Maximum mark: 3] Reference code 23M.2.SL.TZ1.2a
Level SL Paper 2 Time zone TZ1
Command term Explain Question number a Adapted from N/A
a.
[Maximum mark: 3]
23M.2.SL.TZ1.2a
(a)

Explain how the pancreas cell carries out its function, with reference to three organelles visible in the diagram.

[3]

Markscheme
  1. genes for digestive enzymes are transcribed in the nucleus;
  2. rough ER/ribosomes produces/synthesizes enzymes/proteins;
  3. mitochondrion produces ATP to provide energy for protein/enzyme production;
  4. Golgi apparatus/body processes enzymes/proteins
    OR
    Golgi apparatus/body packages enzymes into vesicles;
  5. vesicles carry enzymes to (plasma) membrane
    OR
    vesicles secrete enzymes by exocytosis;

 

Function must be attached to the name of the organelle to earn the mark.

Credit may be given for named pancreatic enzyme for mp-a or mp-b

Examiners report

The role of the mitochondria and Golgi body or ribosomes was often given, but other organelles were not.
Vacuoles were mixed up with vesicles. 

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