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AP BIO UNIT 1 REVIEW

Total questions: 38

Worksheet time: 50mins

Name
Class
Date
1.

The attraction between an oxygen of one water molecule and the hydrogen of another is called a

a)

ionic bond

b)

covalent bond

c)

hydrogen bond

d)

Van der Waals interaction

2.

Glycosidic bonds happen in

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

3.

Which of the following is FALSE. Saturated fatty acids

a)

have double bonds

b)

are solid at room temperature

c)

are lipids

d)

are more common in animals

4.

True or False. Protein structure and function are correlated because denatured enzymes do not function properly

a)

True

b)

False

5.

Multiple, fully folded protein chains interacting with each other is a

a)

primary structure

b)

secondary structure

c)

tertiary structure

d)

quaternary structure

6.

RNA molecules

a)

help synthesize proteins

b)

store genes

c)

transmit genetic information to offspring

7.

Adhesion happens when

a)

covalent bonds occur

b)

ionic bonds occur

c)

hydrogen bonds occur

d)

you use superglue instead of eyelash glue

8.

Which of the following is true about the reaction (ignore the endothermic word)

a)

it is nonreversible

b)

NH3 is the product of the reverse reaction

c)

NH3 is being formed and decomposed simultaneously

d)

only one reaction occurs at a time

9.

True or False. At chemical equilibrium the rate of the forward reaction is the same as the rate of the reverse reaction

a)

True

b)

False

10.

Alkalis (bases) have more of which ions?

a)

H+

b)

OH-

c)

Na+

d)

Cl-

11.
The image below shows a polymer of glucose molecules. What type of macromolecule is this?
a)
carbohydrate
b)
protein
c)
lipid
d)
nucleic acid
12.
Larger polymers are formed when monomers are joined together by a _______ reaction.
a)
dehydration synthesis
b)
digestion
c)
hydrolysis
d)
redox
13.
Identify the macromolecule in the image below.
a)
carbohydrate
b)
nucleic acid
c)
protein
d)
lipid
14.
The image depicts which level of structure in proteins?
a)
primary
b)
secondary
c)
tertiary
d)
quaternary
15.
If a hydroxyl functional group is present, which of the following is likely to be true?
a)
The compound will dissolve in water.
b)
The compound is hydrophobic.
c)
The compound will not form hydrogen bonds.
d)
The compound is nonpolar.
16.
A water strider can skate along the top of a pond because:
a)
covalent bonds result in water cohesion
b)
hydrogen bonds result in water cohesion (surface tension)
c)
water striders have adapted to take advantage of water cohesion
d)
low surface tension of water
17.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
18.
When you mix salad oil and water they immediately separate because:
a)
Salad oil is hydrophobic
b)
Hydrogen bonds reform between water molecules
c)
Salad oil is too heavy
d)
It depends on what kind of oil you are using
19.
What is a peptide bond?
a)
Bond that holds two amino acids together.
b)
A bond that holds hydrogen and oxygen molecules together.
c)
A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
d)
A bond that is formed by the sharing of electrons.
20.
The primary sequence of a protein refers to the:
a)
Order of amino acids
b)
α-Helix or β-Pleated Sheet
c)
Interaction of subunits
d)
Hydrogen Bonding
21.
The two types of folding in the secondary structure are.....
a)
alpha-helix & beta-pleated sheets
b)
polypeptide & nucleotide
c)
globular & fibrous
22.
What gives a protein its unique shape?
a)
the unique sequence of amino acids in its polypeptide chain
b)
the unique folding due to the sequence of amnio acids in the polypeptide chain
c)
hydrogen bonding & unique interactions between the 'R' groups
d)
all of these
23.
The main bonding in the secondary structure of a protein is due to.....
a)
covalent bonding
b)
ionic bonding
c)
hydrogen bonding
d)
polar bonding
24.
The tertiary structure folding in proteins is primary due to the interactions of....
a)
the 'R' groups
b)
the 'P' groups
c)
the 'A' groups
d)
the 'S'
25.

During the tertiary folding stage, polar amino acids will orient themselves on the ____________ of the molecule.

a)

interior

b)

exterior

c)

positive side

d)

negative side

26.

During the tertiary folding stage, non-polar amino acids will orient themselves on the ____________ of the molecule.

a)

interior

b)

exterior

c)

positive side

d)

negative side

27.

Why is folding so important in proteins?

a)

It gives them a unique, functional shape

b)

It makes them look tidier

c)

It makes every protein molecule different from the next even if they are the same type

d)

The folding is random so is not that important at all

28.
If a hydrophobic amino acid sequence is placed in water the amino acids will
a)
fold in half
b)
unfold
c)
bunch up
d)
spread out
29.
Which area of the protein shown below would contain hydrophobic amino acids?
a)
A
b)
B
c)
C
d)
D
30.
The level of protein structure that results from hydrogen bonding causing the protein to fold into α-helix and β-pleated sheets is known as
a)
primary structure
b)
secondary structure
c)
tertiary structure
d)
quaternary structure
31.
If someone is lactose intolerant, they lack the enzyme _____.
a)
lipase
b)
lactose
c)
lactase
d)
milk
32.
When a protein unfolds, it is
a)
Denatured
b)
Building
c)
Adding amino acids
d)
Making food
33.
Which structure changes in the 20 different amino acids?
a)
#1
b)
#2
c)
#3
d)
#4
34.
Which letter corresponds to an alpha helix?
a)
A
b)
B
c)
C
d)
D
35.
Which letter corresponds to an beta sheet?
a)
A
b)
B
c)
C
d)
D
36.
Which letter corresponds to the primary protein structure?
a)
A
b)
B
c)
C
d)
D
37.
Which letter corresponds to the tertiary protein structure?
a)
A
b)
B
c)
C
d)
D
38.
What statement best describes letter E in the diagram??
a)
This is a proteins tertiary structure.
b)
This is a protein that has formed an enzyme.
c)
This is more than one protein that have combined together.
d)
This is a protein that has been denatured.

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