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A.P Biology Biochemistry Chapter 4 and 5

Total questions: 101

Worksheet time: 3hrs 17mins

Name
Class
Date
1.
Where does the energy from our food originally come from?
a)
the Sun
b)
chemical reactions
c)
carbohydrates
d)
mitochondria
2.
Which macromolecule is made of simple and complex sugars?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
3.
All polymers are made up of...
a)
monosaccharides
b)
monomers
c)
proteins
d)
None of these
4.
Which macromolecule is this?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
5.
These molecules are examples of ________.
a)
monosaccharides
b)
amino acids
c)
triglycerides
d)
fatty acids
6.
What is the function of a carbohydrate?
a)
Stores energy
b)
Movement
c)
Stores genetic information
d)
Speeds up reactions
7.
All carbohydrates are:
a)
made of amino acids
b)
composed of carbon, hydrogen and oxygen atoms
c)
made of fatty acids
d)
composed of carbon, hydrogen, oxygen and nitrogen atoms
8.
What suffix is used in the names of most carbohydrates?
a)
-ase
b)
-nic
c)
-ose
d)
-yme
9.
Monosaccharides are the monomers for which major macromolecules? 
a)
Photosythesis
b)
Monosaccharides
c)
Carbohydrates
10.
All organic compounds contain the element
a)
carbon
b)
nitrogen
c)
phosphorus
d)
sulfur
11.
Why are scientific theories an important part of research and understanding?
a)
Scientific theories determine the work that future scientists can do.
b)
Scientific theories allow scientists to make predictions.
c)
Scientific theories determine the subjects that scientists research.
12.
Which of these is a lipid?
a)
triglycerides
b)
steroids
c)
fatty acids
d)
all of the above
13.
Lipids are found in every cell on Earth. Which part of the cell do lipids make up?
a)
cell nucleus
b)
cell vacuole
c)
cell membrane
d)
cell golgi body
14.
What creates a steroid?
a)
4-fused carbon rings
b)
3-fused hydrogen chains
c)
2-fused oxygen molecules
d)
1 carboxyl group
15.
Which of the following is a characteristic of lipids?
a)
They are polar molecules.
b)
They are nonpolar molecules.
c)
They dissolve in water.
d)
They are hydrophilic.
16.
These are the monomers (building blocks) of lipids?
a)
nucleotides
b)
amino acids
c)
disaccharides
d)
fatty acids
17.
Which of the following is NOT a function of lipids?
a)
long term energy
b)
provides flavor in food
c)
used to make hormones
d)
building of muscles
18.
Which specific lipid has the following characteristics:
1. Makes up the cell membrane
2. Has a polar, hydrophilic head
3. Has 2 non-polar, hydrophobic tails
a)
waxes
b)
phospholipids
c)
steroids
d)
triglycerides
19.
What does hydrophobic mean?
a)
the fear of water
b)
the fear of hydrogen
c)
the love of water
d)
the love of hydrogen
20.
This picture shows what type of lipid?
a)
unsaturated fat
b)
wax
c)
saturated fat
d)
steroid
21.
A "kinky structure" due to the double bonds between carbon atoms creates a lipid known as what?
a)
saturated fat
b)
wax
c)
steroid
d)
unsaturated fat
22.
The following are characteristics and functions of waxes EXCEPT:
a)
solid at room temperature
b)
water proof
c)
low melting point
d)
forms a protective covering to prevent water loss
23.
Triglycerides include both:
a)
fats and oils
b)
waxes and steroids
c)
steroids and phospholipids
d)
saturated fats and waxes
24.
Saturated fats are _____ at room temperature.
a)
solids
b)
gases
c)
liquids
d)
non of the above
25.
Saturated fats have this type of structure:
a)
kinky with double bonds between carbons
b)
4-fused carbon rings
c)
straight with single carbon bonds
d)
rectangular with triple carbon bonds
26.
Which of the following foods contains unsaturated fats?
a)
fish
b)
olive oil
c)
cheese
d)
eggs
27.

What is this molecule called?

a)

nucleotide

b)

fatty acid

c)

amino acid

d)

monosaccharide

e)

glycerol

28.

Which colored box highlights the amino group?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Purple

29.

Which colored box is different for every amino acid?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Purple

30.

Which colored box is the reason this is an organic molecule?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Violet

31.

Which colored box highlights the carboxyl?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Purple

32.

What is a long chain of amino acids called?

a)

Polysaccharide

b)

Lipid

c)

Carbohydrate

d)

Polypeptide

e)

Nucleic acid

33.

Two amino acids will bond together as the result of _______.

a)

Dehydration synthesis

b)

Hydrolysis

c)

pHolysis

d)

Rehydration synthesis

34.

Enzymes belong to which category of organic molecule?

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Nucleic acids

35.

Which statement about enzymes is FALSE?

a)

They are made from amino acids

b)

They can be used multiple times

c)

They lower the energy needed for reactions

d)

A single enzyme has many different functions

36.

What happens when an enzyme is placed outside it's normal environment?

a)

It functions normally

b)

It functions better

c)

It's function ceases

37.
What is a protein: 
a)
A polymer composed of many sugars.
b)
A polymer composed of many amino acids. 
c)
A polymer composed of fatty acids. 
d)
A polymer composed of nucleotides. 
38.
What is an example of a protein?
a)
Strawberries
b)
Bread
c)
Pasta
d)
Steak
39.
Which macromolecule is this?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
40.

Nitrogen Bases for DNA:

a)

Adenine, Guanine, Cytosine, and Uracil

b)

Adenine, Guanine, Cytosine, and Phosphate

c)

Adenine, Guanine, Cytosine, and Thymine

d)

Adenine, Guanine, Cytosine, and Sulfur

41.

Nitrogen bases for RNA:

a)

Adenine, Guanine, Cytosine, and Uracil

b)

Adenine Guanine, Cytosine, and Sulfur

c)

Adenine, Guanine, Cytosine, and Thymine

d)

Adenine, Guanine, Cytosine, and Phosphate

42.

Steps or rungs of ladder, are made up of:

a)

Nitrogen containing bases that connect in center by weak hydrogen bonds.

b)

Nitrogen containing bases that connect in the center by carbohydrate bonds

c)

Nitrogen containing bases that connect in the center by weak phosphate bonds

d)

Nitrogen containing bases that connect in the center by strong phosphate bonds

43.

Purines:

a)

Double ringed structures

b)

Single ringed structures

44.

Pyrimidines:

a)

Double ringed structure

b)

Single ringed structure

45.

Sides or backbones of DNA molecules are made up of?

a)

Alternating sugars-phosphates

b)

Nitrogen and Phosphate

c)

Alternating sugar-sulfur

d)

Carbon and Hydrogen

46.
If AAGAGG went through DNA replication, the complementary bases would be....
a)
TTCTCC
b)
UUCUCC
47.
Which of these is not part of a nucleotide?
a)
sugar
b)
phosphate
c)
nitrogen base
d)
phospholipid
48.
 Which of these is not found in DNA?
a)
adenine
b)
thymine
c)
phosphate
d)
ribose
49.
If you have 40 adenine in a DNA molecule, how many thymine can you expect?
a)
20
b)
30
c)
40
d)
50
50.

What was Rosalind Franklin's role in the discovery of the structure of DNA?

a)

She discovered that DNA is made of nucleotides

b)

She carried out X-ray diffraction experiments leading to the determination that DNA is a double helix.

c)

She carried out X-ray diffraction experiments and concluded that DNA strands run in opposite directions.

d)

She produced the three-dimensional molecular model of DNA to show that it is a double helix.

51.

Nucleotides are:

a)

monomers of proteins

b)

polymers of DNA

c)

DNA base pairs

d)

monomers of DNA

52.

Which statement is correct?

a)

A is a nitrogen containing base

b)

A, B, and C form an amino acid

c)

B is deoxyribose

d)

C is a phosphate group

53.

The element not found in DNA is:

a)

carbon

b)

nitrogen

c)

phosphorus

d)

sulfur

54.

The special bond connects the nucleotides as seen in this image, are ____ bonds.

a)

peptide

b)

phoshodiester

c)

ionic

d)

glycosidic

55.

ALL bonds of organic molecules are:

a)

covalent

b)

ionic

c)

polar

d)

hydrogen

56.

In every organic molecule you will find

a)

C & O

b)

C & H

c)

C & N

d)

C, O, and H

57.

Which one of the following is a function of RNA?

a)

made of protein

b)

encodes genetic information

c)

is a component of ribosomes

d)

reverses hydrolysis in macromolecules

58.

The difference between deoxyribose and ribose is that deoxyribose has:

a)

an extra oxygen

b)

an extra carbon

c)

one less hydrogen

d)

one less oxygen

59.
How many different amino acids are there?
a)
4
b)
20
c)
6
d)
46
60.
Which of the following is LEAST likely to dissolve in water?
a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
61.
True of False. Glycogen is a starch that is found in animals. 
a)
True
b)
False
62.
What do disaccharides, such as sucrose, and polysaccharides, such as starch, have in common?
a)
They are lipids made of fatty acids.
b)
They are proteins made of amino acids.
c)
They are nucleic acids made of nucleotides.
d)
They are carbohydrates made of simple sugars.
63.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
64.
What is the function of a protein?
a)
cell energy
b)
enzymes and body tissue
c)
long term energy storage
d)
contain genetic information
65.
The name of the initial chain of monomers in a protein is called.....
a)
polypeptide
b)
polysaccharide
c)
polyester
d)
polynucleotide
66.
The two types of folding in the secondary structure are.....
a)
alpha-helix & beta-pleated sheets
b)
polypeptide & nucleotide
c)
globular & fibrous
67.
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
68.
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'
69.
How many monomers can a protein molecule contain?
a)
10
b)
100
c)
1,000
d)
10,000+
70.
Our bodies can synthesize some of the essential amino acids we need, but where do we get the ones we cannot synthesize?
a)
eating animal protein
b)
taking a supplement
c)
eating plant protein
d)
drinking plenty of water
71.
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
72.

What is a functional group?

a)

Group of atoms that give specific characteristics to a molecule

b)

Group of molecules that give specific characteristics to an atom

c)

Group of molecules that make up a group of atoms

d)

Group of atoms that give specific characteristics to an element

73.

What functional group is -HC=O

a)

Carbonyl Aldehyde

b)

Carbonyl Ketone

c)

Carboxyl

d)

Methyl

74.

What functional group is -OH

a)

Hydroxyl

b)

Carboxyl

c)

Amino

d)

Carbonyl Ketone

75.

What functional group(s) is/are present on the molecule? (check all that apply)

a)

Hydroxyl

b)

Carboxyl

c)

Methyl

d)

Carbonyl Aldehyde

76.

Classify the compound based on the functional group present.

a)

ketone

b)

ester

c)

carboxylic acid

77.
Classify the compound based on the functional group present.
a)
aldehyde
b)
ketone
c)
carboxylic acid
d)
ester
78.
Classify the compound based on the functional group present.
a)
carboxylic acid
b)
aldehyde
c)
alcohol
d)
ether
79.
Classify the compound based on the functional group present.
a)
aldehyde
b)
ketone
c)
alcohol
d)
carboxylic acid
80.

Name the compound based on the functional group present.

a)

methanol

b)

aldehyde

c)

ethanol

81.
The element present in all organic molecules is
a)
Nitrogen
b)
Phosphorus
c)
Hydrogen
d)
Carbon
82.
How many electron pairs does carbon share in order to complete its valence shell?
a)
1
b)
3
c)
4
d)
8
83.
Which of the following statements correctly describes cis-trans isomers?
a)
They have the same chemical properties
b)
They have an asymmetrical carbon that makes them mirror images
c)
They have different molecular formulas
d)
They have variations in arrangement around a double bond
84.
Thalidomide and L-dopa, shown below, are examples of pharmaceutical drugs that occur as enantiomers, or molecules that
a)
are cis-trans isomers
b)
are mirror images of one another
c)
are mirror images of one another and have the same biological activity
d)
have identical three-dimensional shapes
85.
Which of the structures shown is an impossible covalently bonded molecule?
a)
A
b)
B
c)
C
d)
D
86.
Which of the groups shown above is a carbonyl functional group?
a)
A
b)
B
c)
C
d)
D
87.
Which of the groups shown above is a carbonyl functional group?
a)
A
b)
B
c)
C
d)
D
88.
Which molecule shown above has a carbonyl functional group in the form of a ketone?
a)
A
b)
B
c)
C
d)
D
89.
Which molecule shown above has a carbonyl functional group in the form of an aldehyde?
a)
A
b)
B
c)
C
d)
D
90.
Identify the asymmetric carbon in this molecule
a)
A
b)
B
c)
C
d)
D
91.
Which functional group has the molecular formula of CH3?
a)
Methyl
b)
Amino
c)
Hydroxy
d)
Carbonyl
92.
Which property is most closely associated with the hydroxyl functional group?
a)
Polar
b)
Nonpolar
c)
Basic
d)
Acidic 
93.
Which is NOT a way functional groups may affect a molecule?
a)
Serve as a recognizable tag on biological molecules
b)
Affect the molecule's shape
c)
Be directly involved in chemical reactions
d)
Decrease the solubility of the molecule in water
94.
Which functional groups can act as acids?
a)
Ketone and amino
b)
Carbonyl and carboxyl
c)
Carboxyl and phosphate
d)
Hydroxyl and aldehyde
95.
What type of isomer is shown? 
a)
Structrual isomers
b)
Cis-trans isomers
c)
Enantiomers
d)
They're not isomers, its the same structure
96.
What is the functional group of an alcohol?
a)
-COO-
b)
-COOH
c)
-C=C-
d)
-OH
97.
What is formed when an alcohol reacts with a carboxylic acid?
a)
an ester and water
b)
water
c)
alkali
d)
an ester
98.

Which of the following bond(s) do(es) NOT exist in a secondary structure?

a)

Peptide bond

b)

Hydrogen bond

c)

Disulphide bond

d)

Ionic bond

99.

The difference between tertiary and quartenary structure is:

a)

Tertiary structure has double bond whereas quartenary structure does not have double bond

b)

Tertiary structure consists of one polypeptide chain whereas quartenary structure consists of more than one polypeptide chains

c)

Tertiary structure is fibrous whereas quartenary structure is globular

d)

Tertiary structure is water-soluble whereas quartenary structure is lipid soluble

100.
Plant and algae cell walls are made of this carbohydrate.
a)
glucose
b)
chitin
c)
cellulose
d)
sucrose
101.
Arthropod exoskeletons and fungi cell walls are made of this tough carbohydrate.
a)
cellulose
b)
chitin
c)
peptidoglycan
d)
glucose

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