DP Biology (first assessment 2025)
Question 19N.2.SL.TZ0.a
Date | November 2019 | Marks available | [Maximum mark: 2] | Reference code | 19N.2.SL.TZ0.a |
Level | SL | Paper | 2 | Time zone | TZ0 |
Command term | Outline | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 2]
19N.2.SL.TZ0.a
Outline the cell theory.
[2]
Markscheme
a. cells can only arise from preexisting cells ✔
b. living organisms are composed of cells/smallest unit of life ✔
c. organisms consisting of only one cell carry out all functions of life in that cell/cells perform life functions «at some point in their existence» ✔
d. although most organisms conform to cell theory, there are exceptions ✔
