Question 19M.3.SL.TZ2.c
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.SL.TZ2.c |
| Level | SL | Paper | 3 | Time zone | TZ2 |
| Command term | Suggest | Question number | c | Adapted from | N/A |
The performance of mice on a Barnes maze, shown in the photograph, was used to test the effect of cinnamon on learning.
Mice were trained for three days to find a compartment in the maze containing food. Their ability to find the compartment was tested by placing the mice at the centre and recording their movement. The mice were divided into two groups according to the route taken: good performers and poor performers. After this all the mice were fed a small amount of cinnamon in their diet for 30 days. They were then trained for three days and retested on the maze.
The diagrams show the movements of a typical good performer and a typical poor performer before and after cinnamon was included in their diet.
[Source: reprinted by permission from: Springer Natures, Journal of NeuroImmune Pharmacology, Cinnamon Converts Poor
Learning Mice to Good Learners: Implications for Memory Improvement, Khushbu K.Modi et al, copyright 2016]
It has been suggested that cinnamon might be of benefit to patients who are recovering from a stroke. Suggest one advantage of adding cinnamon to the diet of a patient who has suffered a stroke.
[1]
a. reorganization of brain function through plasticity «which is enhanced by cinnamon» ✔
b. cinnamon helps to form new neural pathways to replace the ones that were lost «due to the stroke» ✔
In (c) most candidates suggested cinnamon helps to form new neural pathways to replace the ones lost due to a stroke.
