THE KOÇ SCHOOL/ GRADE 9 Biology
LIPIDS WORKSHEET
1) What elements do lipids contain? __ ____,____ and sometimes ____.
2) What are the main types of lipids? Name an example for each.
a) _________________________ Example:
b) _______ _________________ Example:
c) ________ _________________ Example:
3) What are the parts of a triglyceride? ___________ & __________
4) Triglycerides can have saturated or unsaturated fatty acids attached. Label the following fatty
acids as saturated or unsaturated.
5) State the importance of “essential” fatty acids.
6) Differentiate between saturated and unsaturated fats in terms of:
a. In terms of bonds in the fatty acid chain:
b. State at room temperature (liquid, solid)
c. Origin (plant or animal)
7) Where would you find the “lipid bilayer” in a cell? ____c_________________
8) How are triglycerides and phospholipids similar? Different?
Triglyceride
Phospholipid
9) List two functions of steroids in animal cells.
10) Compare lipids and carbohydrates in terms of energy storage:
carbohydrates
Stored as…?
_____ in animal cells
________ in plants cells
lipids
__ _ in animal cells
_____ in plants cells
Long/short term
storage?
Ease of digestion?
Amount of energy
released?
Solubility in water?
11) Explain why the animals given below prefer to store lipid in their bodies?
a) camel:
b) migrating birds:
c) polar bear: