DP Biology (last assessment 2024)
Question 19N.3.HL.TZ0.d
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.HL.TZ0.d |
| Level | HL | Paper | 3 | Time zone | TZ0 |
| Command term | Predict | Question number | d | Adapted from | N/A |
d.
[Maximum mark: 1]
19N.3.HL.TZ0.d
An experiment was carried out to study osmosis in plant cells. Small cylinders of zucchini (Cucurbita pepo) were cut and placed in different sucrose solutions at 25 °C. The figure shows the percentage changes in mass after 24 hours.
Predict what would happen to a red blood cell placed in distilled water.
[1]
Markscheme
a. water would move into the red blood cells ✔
b. it would lyse
OR
swell
OR
burst ✔
