DP Chemistry (last assessment 2024)
Question 17N.3.sl.TZ0.8c
| Date | November 2017 | Marks available | [Maximum mark: 2] | Reference code | 17N.3.sl.TZ0.8c |
| Level | sl | Paper | 3 | Time zone | TZ0 |
| Command term | Outline | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 2]
17N.3.sl.TZ0.8c
Consider the following lipid and carbohydrate.
(c)
Outline the importance of linoleic acid for human health.
[2]
Markscheme
Any two of:
increases «ratio of» HDL «to LDL» cholesterol
OR
decreases LDL cholesterol «level»
removes plaque from/unblocks arteries
OR
decreases risk of heart disease
decreases risk of stroke «in the brain»
Accept "essential fatty acid".
Do not accept “bad cholesterol” for “LDL cholesterol” OR “good cholesterol” for “HDL cholesterol”.
Do not accept general answers such as “source of energy” OR “forms triglycerides” OR “regulates permeability of cell membranes” etc.
[Max 2 Marks]
