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FOR MARKS: Introduction to Lipids & EFA

Total questions: 13

Worksheet time: 26mins

Name
Class
Date
1.
Which macromolecule is this?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
2.
The characteristic that all lipids have in common is----
a)
made of lots of double bonds
b)
acidic when mixed with water
c)
no high energy content
d)
do not dissolve in water
3.
What type of lipid is this?
a)
steroid
b)
cholesterol
c)
phospholipid
d)
triglyceride
4.
Lipids differ from most other larger biomolecules in that they
a)
Are hydrophillic
b)
Are hydrophobic
c)
Do not have specific shapes
d)
Do not contain carbon
5.

Lipids are composed of which atoms?

a)

Hydrogen, Oxygen, Nitrogen

b)

Hydrogen, Oxygen, Carbon

c)

Oxygen, Nitrogen, Carbon

d)

Oxygen, Nitrogen, Hydrogen

6.

True or False: Lipids are insoluble

a)

True

b)

False

7.

Which diagram is a triglyceride?

a)
b)
c)
d)
8.

Essential fatty acids are essential because...

a)

our bodies can make them ourselves, but it takes a lot of effort.

b)

our bodies cannot make them on our own so we must get them from our diet.

c)

our bodies don't really need then, but they are nice to have.

9.

The two main types of essential fatty acids are?

a)

Omega 3's and Omega 4's

b)

Omega 5's and Omega 6's

c)

Omega 2's and Omega 6's

d)

Omega 3's and Omega 6's

10.

What percentage of people do not get enough omega 3's?

a)

10%

b)

50%

c)

99%

d)

75%

11.

Which of the following would be a common source of omega 6's?

a)

corn oil

b)

olive oil

c)

fish oil

d)

flax-seed oil

12.

Foods high in omega 3 essential fatty acids are:

a)

avocado

b)

walnuts

c)

salmon

d)

all of the above

13.

Omega 3's are good for the brain in that they...

a)

Improve signal transmission

b)

Lower the risk of dementia

c)

Supports memory, focus and attention

d)

All of the options are true.