DP Biology (last assessment 2024)
Question 18N.2.SL.TZ0.2c
Date | November 2018 | Marks available | [Maximum mark: 2] | Reference code | 18N.2.SL.TZ0.2c |
Level | SL | Paper | 2 | Time zone | TZ0 |
Command term | Explain | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 2]
18N.2.SL.TZ0.2c
(c)
Explain the advantages of having both lipid and carbohydrate as energy stores in the human body.
[2]
Markscheme
a. lipid is long-term energy storage
OR
carbohydrate is short-term energy storage/readily available ✔
b. lipids are insoluble, so easier to store
OR
carbohydrates/sugars are soluble, so easy to transport by blood ✔
c. lipids store more energy «per gram»
OR
lipids occupy less space «per energy/kJ» ✔
OWTTE
