Online Homework 7-Lipids-BIOL-107
Online Homework 7-Lipids
Question 1
What properties do all lipids have?
They are made only with atoms of carbon (C) and hydrogen (H).
They are hydrophilic, since they contain oxygen (O) atoms.
They are hydrophilic, since they contain oxygen (O) atoms.
They are hydrophobic, since they contain very few O atoms compared to C and H atoms.
Question 2
It insulates mammals, helping them retain body heat.
phospholipid
triglyceride
steroid
wax
Question 3
Phospholipids are
hydrophilic
Amphipathic
Amphipathic
hydrophobic
Question 4
This kind of lipid helps to protect our hearing by trapping dust and other particles.
wax
steroid
steroid
triglyceride
phospholipid
Question 5
This is the major constituent of plasma membranes.
phospholipid
triglyceride
steroid
wax
Question 6
This covers the leaves of some plants to limit water loss.
triglyceride
phospholipid
steroid
wax
Question 7
What kind of lipid is pictured here?
steroid
triglyceride (fat)
triglyceride (fat)
wax
phospholipid
Question 8
0.25 / 0.25 pts
This is a primary long term energy storage molecule in mammal bodies.
triglyceride
phospholipid
steroid
wax
Question 9
All fatty acids contain what functional group?
hydroxyl
carboxyl
amino
Question 10
What kind of fatty acid has one or more carbon-carbon double bond?
unsaturated
saturated
hormone
Question 11
This kind of fatty acid has no carbon-carbon double bonds between carbons:
saturated
glycerol
unsaturated
phospholipid
triglyceride
cis
trans
Question 12
Which kind of fatty acid is most often solid at room temperature?
unsaturated
saturated
Question 13
How are these hydrogens arranged?
saturated
cis
trans
none of these
unsaturated
Question 14
What is the name of the process by which an unsaturated oil can be converted into a saturated fat?
deep frying
hydrogenation
hydrogenation
hydrolysis
liposynthesis
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