| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.HL.TZ0.37 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 37 | Adapted from | N/A |
Question
What first happens to a B lymphocyte when it becomes activated?
A. It divides by mitosis producing a clone of cells.
B. It begins transcription and produces antigens.
C. It differentiates into memory cells.
D. It produces antibodies using its extensive rough endoplasmic reticulum (rER).
Markscheme
A
Examiners report
N/A
