| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.HL.TZ0.2 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 2 | Adapted from | N/A |
Question
What is proportional to a cell’s surface area?
A. Rate of exchange of materials
B. Rate of heat production
C. Rate of waste production
D. Rate of oxygen consumption
Markscheme
A
Examiners report
N/A
Syllabus sections
Show 65 related questions
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