DP Biology (last assessment 2024)
Question 17N.2.SL.TZ0.03a
| Date | November 2017 | Marks available | [Maximum mark: 2] | Reference code | 17N.2.SL.TZ0.03a |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Draw | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 2]
17N.2.SL.TZ0.03a
(a)
The figure represents a water molecule.
Draw a second water molecule to show how bonds can form between water molecules, including the name of the bond.
[2]
Markscheme
a. similar water molecule drawn with oxygen on one molecule facing hydrogen on the other water molecule
b. one hydrogen bond drawn as a dotted/dashed line between the two water molecules and labelled
O and H do not have to be labelled but must be positioned correctly
eg :
Can get this mark even if atoms incorrect