wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

AP Biology - Unit 1: Chemistry of LifeReview

Total questions: 112

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

What is an enzyme?

a)

A catalyst made of protein

b)

A catalyst made of DNA or RNA

c)

A catalyst made of metals only

2.

The four main types of carbon-based molecules in organisms are carbohydrates, lipids, nucleic acids, and

a)

starches.

b)

fatty acids.

c)

monosaccharides.

d)

proteins.

3.

By which process does water vapor become a cloud?

a)

evaporation

b)

transpiration

c)

condensation

d)

precipitation

4.

What is true about hydrogen bonds?

a)

They are relatively weak

b)

They are involved in the structure of DNA

c)

They occur between hydrogen and more electronegative atoms like oxygen

d)

All of the above

5.

Where does a peptide bond form?

a)

between the five-carbon sugar of one nucleotide and the phosphate group of another nucleotide

b)

between the R group of one amino acid and the carboxyl group of another amino acid

c)

between the amino group of one amino acid and the carboxyl group of another amino acid

d)

between the nitrogenous base of one nucleotide and the phosphate group of another nucleotide

6.

Why is carbon able to form a large number of different molecules?

a)

carbon only forms ionic bonds

b)

carbon only forms ring structures

c)

carbon can form four covalent bonds

d)

carbon forms small simple structures

7.

A sample of the element potassium has 19 protons and 18 electrons, making it a...

a)

Positive Ion

b)

Neutral Atom

c)

Negative Ion

d)

Isotope

8.

________________________ are formed by the transfer of electrons from one atom to another.

a)

ionic bonds

b)

polar covalent bonds

c)

nonpolar covalent bonds

d)

covalent bonds

9.

Carbon forms chemical bonds with other atoms by achieving a stable or complete outermost energy shell. This is accomplished when carbon

a)

Loses two electrons

b)

Gains two electrons

c)

Shares two electrons

d)

loses four electrons

10.

A polar covalent bond between atom occurs when

a)

One of the atoms has a greater affinity for electrons than the other atom

b)

The atoms attract the electrons equally

c)

An electron from one of the atoms is completely transferred to the other atom

d)

The molecule becomes ionized

11.

In a decomposition reaction

a)

The reactants gain electrons

b)

Atoms are transferred from one molecule to another

c)

Large molecules are broken down to form small molecules

d)

none of the choices

12.

The rate of chemical reactions is influenced by

a)

The concentration of the reactants

b)

Temperature

c)

Enzymes

d)

None of the choices

13.

Water

a)

Is composed of two oxygen atoms and one hydrogen atom

b)

Has a low specific heat

c)

Is composed of polar molecules into which ionic substances dissociate

d)

Is produced by hydrolysis reaction

14.

When sugar is dissolved in water, the water is called the

a)

Solute

b)

Solvent

c)

Solution

d)

Salient

15.

A buffer

a)

Slows down chemical reactions

b)

Speeds up chemical reactions

c)

Increases the pH of solutions

d)

Maintains a relatively constant pH

16.

Oxygen

a)

Is an inorganic molecule

b)

Is released from glucose when glucose is broken down for energy

c)

Combines with carbon dioxide and is released from the body

d)

All of the choices are correct

17.

Which of the following is an example of a carbohydrate?

a)

Glycogen

b)

Wax

c)

Steroid

d)

DNA

18.

The basic units or building blocks of fats are

a)

Simple sugars (monosaccharides)

b)

Double sugars (disaccharides)

c)

Amino acids

d)

Glycerol and fatty acids

19.

DNA

a)

Is the genetic material

b)

Is a single strand of nucleotides

c)

Contains the nucleotide uracil

d)

None of the choices

20.
DNA and RNA are examples of...
a)
proteins
b)
nucleic acids
c)
carbohydrates
d)
lipids
21.
Phospholipids are used in what biological structure?
a)
RNA
b)
DNA
c)
Cell membrane
d)
Cell wall
22.
These molecules are examples of _________.
a)
amino acids
b)
triglycerides
c)
monosaccharides
d)
lipids
23.
How many protons does the element have if the atomic number is 19 and the atomic mass is 40?
a)
40
b)
19
c)
21
d)
59
24.
The _________ of an element equals the number of protons in an atom of that element
a)
mass number
b)
atomic weight
c)
atomic number
d)
isotopes
25.
The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.
a)
mass number
b)
atomic number 
c)
atomic category
d)
isotope weight
26.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
27.
Which solution releases H+ in solution?
a)
Base
b)
Acid
c)
Buffer
d)
Water
28.

A solution contains [H3O+]=7.0 x 10-4 M.
The solution is

(**Note H3O+ is what H+ will ionize into right away, after it dissociates from OH-. So, the questions is essentially asking about [H+] = 7.0 x 10-4 M.)

a)
basic
b)
acidic
c)
neutral
d)
cannot be determined
29.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
30.
A solution contains [OH-]=5.0 x 10-5 M.
The solution is
a)
basic
b)
acidic
c)
neutral
d)
cannot be determined
31.
What ions does water dissociate into?
a)
H and OH-
b)
H+ and OH
c)
H+ and OH-
d)
H and OH
32.

What is the equation for calculating pH?

a)

pH = [H+]

b)

pH = log [H+]

c)

pH = -log[OH-]

d)

pH = -log [H+]

33.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
4 half-lives
34.
What is the half-life of iodine-131?
a)
32 days
b)
8 days
c)
16 days
d)
24 days
35.
The diagram shows the general structure of an amino acid. Which type of molecule is formed from amino acids?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
36.
Fats, oils and cholesterol are all types of what?
a)
cell membranes
b)
hormones
hormones
c)
lipids
d)
fatty acids
37.
Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?
a)
protein
b)
carbohydrate
c)
nucleic acid
d)
 lipid
38.
The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements? 
a)

Enzymes function best at a specific temperature so that they do not denature.

b)

The body needs to be warm to prevent hypothermia and enzymes don't stop moving (frozen).

c)
The body is kept relatively warm to prevent too much enzyme action. 
d)
There is no connection between the two statements. 
39.
Like complex carbohydrates, proteins are macromolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?
a)
 polymers of smaller subunits
b)
sequence of sugars
c)
lipids of large molecules
d)
nucleotides of DNA
40.
 In living organisms, lipids function mainly as:
a)
Sources of stored energy and transmitters of genetic information
b)
Sources of stored energy and components of cellular membranes
c)
Transmitters of genetic information and catalysts of chemical reactions
d)
Catalysts of chemical reactions and components of cellular membranes
41.

What is the monomer of a lipid?

a)

Amino Acid

b)

Fatty Acid

c)

Monosaccharides

d)

Glucose

42.

What is the function of carbohydrates?

a)

Short term energy

b)

Long term energy

c)

Storing genetic information

d)

Speeding up chemical reactions

43.
Why are lipids insoluble in water?  
a)
lipids are polar
b)
lipids are non-polar
c)
lipids have a negative charge
d)
lipids are building blocks of protiens
44.

Important to the structural integrity of plant cells, this is the single most abundant polysaccharide in the world.

a)

Starch

b)

Glycogen

c)

Cellulose

d)

Chitin

45.

The parts of a nucleotide are:

a)

nitrogen, sulfur, phosphate group

b)

DNA, RNA, ATP

c)

nitrogenous base, ATP, glucose

d)

nitrogenous base, 5-carbon sugar, phosphate group

46.

A carbohydrate polymer is composed of ___

a)

amino acids

b)

nucleotides

c)

monosaccharides

d)

fatty acids

47.

A nucleic acid is composed of ____

a)

fatty acids

b)

amino acids

c)

nucleotides

d)

monosaccharides

48.

A protein is composed of ____

a)

fatty acids

b)

amino acids

c)

nucleotides

d)

monosaccharides

49.

A ____ reaction releases water molecules while ____ a molecule.

a)

dehydration; building

b)

dehydration; breaking down

c)

hydrolysis; building

d)

hydrolysis; breaking down

50.

A ____ reaction uses a water molecule to ___ a molecule.

a)

dehydration; build

b)

hydrolysis; build

c)

dehydration; break down

d)

hydrolysis; break down

51.

The linkages formed between amino acids are called ___ bonds.

a)

peptide

b)

ester

c)

phosphodiester

d)

glycosidic

52.

The linkages formed between monosaccharides are called ___ bonds.

a)

peptide

b)

ester

c)

phosphodiester

d)

glycosidic

53.

The linkages formed between fatty acids and the glycerol backbone of a triglyceride are called ___ bonds.

a)

peptide

b)

ester

c)

phosphodiester

d)

glycosidic

54.

The linkages formed between nucleotides are called ___ bonds.

a)

peptide

b)

ester

c)

phosphodiester

d)

glycosidic

55.

If a protein is composed of multiple separate polypeptides, it has ____ structure.

a)

primary

b)

secondary

c)

tertiary

d)

quaternary

56.

If a protein is a linear chain of amino acids, it has ____ structure.

a)

primary

b)

secondary

c)

tertiary

d)

quaternary

57.

If a protein contains disulfide bonds between different amino acid side chains, it has ____ structure.

a)

primary

b)

secondary

c)

tertiary

d)

quaternary

58.

Secondary structure is produced by ___ bonding between amino acid backbones.

a)

hydrogen

b)

disulfide

c)

covalent

d)

ionic

59.

Which of the following is a gene product?

a)

enzyme

b)

cellulose

c)

starch

d)

phospholipids

60.

To which class of macromolecules does this molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

61.

To which class of macromolecules does this hormone molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

62.

To which class of macromolecules does this molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

63.

To which class of macromolecules does this molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

64.

To which class of macromolecules does this molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

65.

To which class of macromolecules does this molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

66.

To which class of macromolecules does this molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

67.

To which class of macromolecules does this molecule belong?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

68.

In what form do plants store their carbohydrates to use as energy later?

a)

Cellulose

b)

Starch

c)

Chitin

d)

Glycogen

69.

In what form do animals store their carbohydrates to use as energy later?

a)

Cellulose

b)

Starch

c)

Chitin

d)

Glycogen

70.

In what form do plants use carbohydrates for structural support?

a)

Cellulose

b)

Starch

c)

Chitin

d)

Glycogen

71.

Which of these is a saturated fat?

a)

Lard

b)

Canola oil

c)

Natural Peanut Butter

d)

Eggs

72.

Which of these is a lipid?

a)

Cellulose

b)

rRNA

c)

Enzyme

d)

Steroid

73.

Which of these is a protein?

a)

Cellulose

b)

rRNA

c)

Enzyme

d)

Steroid

74.

In what form do animals use carbohydrates for structural support?

a)

Cellulose

b)

Starch

c)

Chitin

d)

Glycogen

75.

Cell membranes are made up primarily of a ____.

a)

Carbohydrate

b)

Nucleic acid

c)

Lipid

d)

Protein

76.
Which type of carbohydrate is this?
a)
monsaccharide
b)
disaccharide
c)
polysaccharide
d)
glyceride
77.
A monomer splits from a polymer through
a)
ATP synthesis
b)
monomerization
c)
hydrolysis
d)
condensation reaction
78.
The 3 categories of carbohydrates are:
a)
Monosaccharide, disaccharide, polysaccharide
b)
glucose, fructose, galatose
c)
starch, cellulose, chitin
d)
There are no categories of carbohydrates
79.

Maltose is made from

a)

two fructose molecules

b)

two glucose molecules

c)

one glucose molecule and one fructose molecule

d)

one glucose molecule and one galactose molecule

80.

What are processes P and Q?

a)

P - oxidation

Q - reduction

b)

P - reduction

Q - oxidation

c)

P - condensation

Q - hydrolysis

d)

P - hydrolysis

Q - condensation

81.
Which of the following is incorrect regarding RNA?
a)
RNA contains uracil
b)
RNA can only be found inside the nucleus
c)
RNA is single stranded
d)
RNA contains genetic information
82.
What is the mRNA strand that would be created from this DNA strand:
T A C A G G C C T
a)
A C G T C C G G A
b)
A U G U C C G G A
c)
T U G G G C C A T
d)
U T G U C C G G U
83.
Which amino acid is coded from the mRNA codon:
G G C
a)
Arginine
b)
Serine
c)
Leucine
d)
Glycine
84.
What does Letter C indicate?
a)
Polypeptide Chain
b)
Anticodon
c)
Codon
d)
Amino Acid
85.

Organic compounds are ________ based molecules.

a)

carbon

b)

nitrogen

c)

hydrogen

d)

oxygen

86.

In which type of reaction is water given off as a product?

a)

dehydration

b)

hydrolysis

87.

Which type of reaction is shown in the image?

a)

hydrolysis

b)

dehydration synthesis/condensation

c)

glycosidic

d)

peptide

88.

What will be the end product of the following dehydration synthesis reaction?


C6H12O6 + C6H12O6

a)

C12H24O12

b)

C12H24O12 + H2O

c)

C12H22O11 + H2O

d)

C12H20O10 + 2H2O

89.

How many molecules of water are used to completely hydrolyze the polymer in the image into its individual monomers?

a)

5

b)

4

c)

3

d)

2

90.

CHO

a)

Carbohydrate

b)

Protein

c)

Lipid

d)

Nucleic Acid

91.

CHONS

a)

Carbohydrate

b)

Protein

c)

Lipid

d)

Nucleic Acid

92.

CHOP

a)

Carbohydrate

b)

Protein

c)

Lipid

d)

Nucleic Acid

93.

Nucleic Acid

a)

CHO

b)

CHONS

c)

CHONP

d)

CHOP

94.

Which has the greater Eelectronegativity:

N or C?

a)

C

b)

N

95.

In terms of electronegativity, put these in increasing order:

C, H, and O

a)

H < C < O

b)

H < O < C

c)

O < C < H

d)

C < H < O

96.

Electronegativity is...

a)

how good an atom is at attracting and temporarily or permanently hold an extra electron

b)

the ability of an atom to lose electrons

c)

the energy required to remove an electron from a specific atom

d)

how easy it is to make friends.

97.

What type of bond holds the water molecules together? (indicated with 1)

a)

Covalent bond

b)

Polar covalent bond

c)

ionic bond

d)

hydrogen bond

98.

What type of bond is represented by the dotted line?

a)

A covalent bond due to sharing of electrons.

b)

An ionic bond because there are positive and negative charges.

c)

Hydrogen bonding because there are hydrogens, because the bond is forming between MOLECULES, not atoms, and there are partial positive and negative charges.

d)

Polar covalent bonding because of unequal electron sharing creating partial positive and negative charges.

99.

The Oxygen atoms in the molecule shown have this charge:

a)

Positive

b)

Partial Positive

c)

Negative

d)

Partial Negative

100.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
101.
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
102.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
 Water acts as a buffer.
103.
Why does ice stay at the top of oceans instead of sinking to the bottom?
a)
 Ice is colder than liquid water.
b)
Ice is less dense than liquid water.
c)
Ice is more dense than liquid water.
d)
Ice is warmer than liquid water.
104.
A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?
a)
Specific heat 
b)
Surface tension
c)
Cohesion and adhesion of water molecules 
d)
Formation of covalent bonds between hydrogen and oxygen molecules
105.
Which types of compounds dissolve easily in water?
a)
Polar and Nonpolar
b)
Polar and Ionic
c)
Nonpolar and Ionic
d)
Covalent and Nonpolar
106.
Which property of water will cause water to bead up on glass?
a)
Adhesion
b)
Cohesion
c)
Ability to dissolve substances
d)
High specific heat
107.
What is the thin film that forms on the surface of a body of water; allows insects to float?
a)
high specific heat
b)
viscosity
c)
surface tension
d)
capillary action
108.
Which is the advantage of water being a good solvent?
a)
It keeps the temperature regulated
b)
It helps transport dissolved materials
c)
It helps organisms float in the water
d)
It enables organisms to live under glaciers
109.
Which of the following is the correct explanation for water being polar?
a)
The equal sharing of electrons between oxygen and hydrogen atoms
b)
The unequal sharing of electrons between oxygen and hydrogens
c)
The equal sharing of protons between oxygen and hydrogens
d)
The unequal sharing of protons between oxygen and hydrogens
110.
What is the tendency of  a fluid to resist flow?
a)
salinity
b)
solidity
c)
surface tension
d)
viscosity
111.
What is the property that makes water molecules attracted to water molecules?
a)
Cohesion
b)
Adhesion
c)
Universal Solvent
d)
Changes Density
112.
The pH scale is the measure of ___ in a solution.
a)
Hydrogen atoms
b)
Oxygen atoms
c)
Hydroxide ions
d)
Hydronium ions

Similar Resources on Wayground

Mod 8 nutrition

114 questions

Mod 8 nutrition

quiz

Worksheet

•

University

EOC 4

115 questions

EOC 4

quiz

Worksheet

•

KG - University

Bio 114 Test #1 review

111 questions

Bio 114 Test #1 review

quiz

Worksheet

•

University

Endocrine System & Metabolic Disorders Practice Questions 1-4

107 questions

Endocrine System & Metabolic Disorders Practice Questions 1-4

quiz

Worksheet

•

University

A&P 1 Final Review

115 questions

A&P 1 Final Review

quiz

Worksheet

•

12th Grade - University

ap2 mock exam 1

108 questions

ap2 mock exam 1

quiz

Worksheet

•

University

Post op procedures BV

114 questions

Post op procedures BV

quiz

Worksheet

•

University

Heart, Blood, Lymphatic System

117 questions

Heart, Blood, Lymphatic System

quiz

Worksheet

•

University