| Date | November 2015 | Marks available | 1 | Reference code | 15N.1.HL.TZ0.4 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 4 | Adapted from | N/A |
Question
During which stage does the cell surface area to volume ratio decrease?
A. Interphase
B. Metaphase
C. Telophase
D. Cytokinesis
Markscheme
A
Examiners report
A high discrimination index and a high difficulty index shows this question proved to be difficult to many candidates but at the same time, good students answered it well.
Syllabus sections
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