Lipids (Mid 1)

Question 1

Which type of triglyceride would typically be liquid at room temperature?

a
Saturated

b
Unsaturated

c
Trans

d
Two of the above

e
All of the above

Answer 1

b
Unsaturated

Question 2

The triglycerides in olive oil and butter are not amphipathic molecules because they:

a
do not have a polar or charged region

b
have hydrophobic and hydrophilic regions

c
do not have a nonpolar region

d
are highly acidic molecules

e
None of the above are true – they are amphipathic

Answer 2

a
do not have a polar or charged region

Question 3

Which of the following concerning phospholipids is true? (Select all that apply)

a
They contain a glycerol linked to fatty acids

b
The types of fatty acids that are attached to the phospholipid have no effect on functionality of the phospholipid

c
Phospholipids are a major constituent of all membranes in the cell

d
They are hydrophobic on one end and hydrophilic on the other end

e
All of the above are correct

Answer 3

a
They contain a glycerol linked to fatty acids
c
Phospholipids are a major constituent of all membranes in the cell
d
They are hydrophobic on one end and hydrophilic on the other end

Question 4

Which of the following molecules should not dissolve easily in water (i.e. are hydrophobic)? (Choose all that apply)

Multiple answers:
Multiple answers are accepted for this question

a
Cholesterol

b
Triglycerides

c
Phospholipids

d
Steroid hormones

Answer 4

a
Cholesterol

b
Triglycerides

c
Phospholipids

d
Steroid hormones