DP Biology (first assessment 2025)

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Question 22M.2.SL.TZ2.5b.i

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Date May 2022 Marks available [Maximum mark: 2] Reference code 22M.2.SL.TZ2.5b.i
Level SL Paper 2 Time zone TZ2
Command term Explain Question number b.i Adapted from N/A
b.i.
[Maximum mark: 2]
22M.2.SL.TZ2.5b.i
(b.i)

Explain what happens in a person when they develop type I diabetes.

[2]

Markscheme
  1. insulin is necessary to control/regulate blood glucose concentrations
    OR
    insulin is necessary for the cells to take up glucose (for energy);
  2. insufficient insulin is made by the pancreas
    OR
    autoimmune response/antibodies destroy the (β) cells of the pancreas that make insulin;
  3. reduced uptake of glucose from the blood / glucose accumulates in the blood / elevated blood glucose levels;

“sugar” is NOT accepted in place of glucose. However, this should only be penalized once; i.e., utiltize ECF.

Examiners report

This question about blood sugar regulation was well done by most. This was a question where the use of general terms rather than specific terms led to lost marks. For example, sugars instead of glucose and ‘the body’ instead of ‘the pancreas’

Syllabus sections