Pretest Answers

9 verified answers
1
Free Preview

In an oil spill, why does the oil not mix with the seawater?

A
Lipids are hydrophilic.
B
Lipids are unsaturated.
C
Lipids are saturated.
D
Lipids are hydrophobic.
2
Free Preview

Which is one function of steroids?

A
insulating and protecting bones and organs
B
waterproofing leaves and feathers
C
providing energy storage
D
serving as chemical messengers
3

Which is a main function of lipids?

A
fighting infection and disease
B
providing energy storage
C
forming bone and muscles
D
transmitting genetic information
4

Which describes the basic structure of a fatty acid?

A
a long carbon and hydrogen chain and an alcohol
B
a long carbon and hydrogen chain and a phosphate group
C
a long carbon and hydrogen chain and a glycerol
D
a long carbon and hydrogen chain and a carboxyl group
5

Which fat is most likely a solid at room temperature?

A
one with double bonds
B
one that is unsaturated
C
one that contains no hydrogen
D
one that is saturated
6

Which fat has only single bonds between the carbon atoms in the fatty acid?

A
saturated
B
polyunsaturated
C
unsaturated
D
monounsaturated
7

Which is a component of a phospholipid?

A
amino acid
B
hydrophilic head
C
long-chain alcohol
D
carbon ring
9

Which statement is true?

A
Fats and lipids are unrelated.
B
Fats are a type of lipid.
C
Lipids are a type of fat.
D
All lipids are fats, and all fats are lipids.

Did you find these answers helpful?

Pretest Answers — CMS 2026-2027 Biology CREDIT…