wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Unit 2 Test Review

Total questions: 101

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

What biological molecule is living things main source of energy and used for structural purposes?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

2.

What biological molecule is used to store energy?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

3.

What biological molecule is used to store and transmit hereditary, or genetic, information?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

4.

What are the biological molecules in the image?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

5.

What are the biological molecules in the image?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

6.

What are the biological molecules in the image?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

7.

What are the biological molecules in the image?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

8.

What atoms are found in all four major groups of organic compounds?

a)

Carbon, Hydrogen, and Oxygen

b)

Carbon, Hydrogen, Oxygen, and Nitrogen

c)

Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorous

9.

A general rule is that the more carbon atoms in a molecule the more energy a molecule can provide. What molecule can provide the most energy to an organism?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

10.

Used to transmit genetic information.

a)

Carbohydrate

b)

Protein

c)

Nucleic Acid

d)

Lipid

11.

Used to speed up chemical reactions (enzymes).

a)

Carbohydrate

b)

Protein

c)

Nucleic Acid

d)

Lipid

12.

The biological role of water ... (click all that apply)

a)

helps digest food

b)

is a good insulator

c)

is a source of energy

d)

is a solvent.

13.

Which category of carbon-based molecules includes sugars and starches?

a)

unsaturated fatty acids

b)

phospholipids

c)

proteins

d)

carbohydrates

14.

  • Giant molecules that contain carbon and are the main components of organisms.

a)

monomer

b)

polymer

c)

macromolecule

d)

micromolecule

15.

What is the function of carbohydrates in organisms?

a)

Provide structural support

b)

Store and provide energy

c)

Transmit genetic information

d)

Speed up chemical reactions

16.
Base your answer to the question on the diagram below, which represents a metabolic process, and on your knowledge of biology. This process best represents...
a)
the bonding of amino acids to form a starch molecule
b)
the digestion of amino acids to form a starch molecule
c)
the bonding of simple sugars to form a starch molecule
d)
the digestion of simple sugars to form a starch molecule
e)
17.
In order to enter cells and be useful to the body, starch must be... [HINT: starch is a large polymer that cannot cross the cell membrane so it has to be broken down into its building blocks in the digestive system]
a)
absorbed through the skin
b)
broken down into fats and water
c)
digested into simple sugars
d)
converted to carbon dioxide and ATP
18.

The most abundant molecule in most living things is

a)

hydrogen

b)

carbon

c)

carbon dioxide

d)

water

19.

Which of the following pairs is unrelated

a)

Sugar and carbohydrate

b)

Amino acid and protein

c)

Fat and lipid

d)

Glycogen and nucleic acid

20.

Water is polar which means that

a)

Both ends of the molecule have a positive charge

b)

Both ends of the molecule have a negative charge

c)

One end of the molecule has a positive charge, while the other end has a negative charge

d)

The molecule is neutral

21.

Which of the following best describes water and the relation to specific heat capacity?

a)

Water has a high specific heat capacity meaning it requires very little energy to change temperature

b)

Water has a low specific heat capacity meaning it requires very little energy to change temperature

c)

Water has a high specific heat capacity meaning it requires a lot of energy to change temperature

d)

Water has a low specific heat capacity meaning it requires a lot of energy to change temperature

22.

Which of the following represents the correct ranking of terms from smallest to largest

a)

Polymer→monomer→carbon atom

b)

Carbon atom→polymer→monomer

c)

Monomer→carbon atom→polymer

d)

Carbon atom→monomer→polymer

23.

The term "Disaccharides" means

a)

sugar that contains one glucose

b)

Sugar that contains two glucose

c)

Sugar that contains more than two glucose.

d)

2 monomers joined together

24.

A macromolecule is composed of smaller units called

a)

Cells

b)

Monomers

c)

Isomers

d)

Polymers

25.

Carbohydrate's monomer is

a)

monosaccharide

b)

amino acid

c)

fatty acid

d)

Nucleotide

26.

Lipid's monomer is

a)

monosaccharide

b)

amino acid

c)

fatty acid

d)

Nucleotide

27.

Nucleic acid's monomer is

a)

monosaccharide

b)

amino acid

c)

fatty acid

d)

Nucleotide

28.

Carbohydrate's function is

a)

makes membranes

b)

controls chemical reactions

c)

provides energy

d)

contains genetic material

29.

Lipids with fatty acid chains that have double bonds are considered

a)

saturated

b)

unsaturated

30.

This molecule is a

a)

monosaccharide

b)

disaccharide

c)

lipid

d)

starch

e)

glycogen

31.

Which are true about starch molecules? Check all that apply.

a)

They are found in plant cells

b)

They are found in animal cells

c)

They provide immediate energy for cells

d)

They are energy storage molecules

e)

Humans can digest them (break them down with enzymes)

32.

Provides structural support for plants

a)

cellulose

b)

starch

c)

glycogen

d)

triglyceride

e)

disaccharide

33.

Short-term energy storage in plants

a)

cellulose

b)

starch

c)

glycogen

d)

triglyceride

e)

disaccharide

34.

Long, straight-chained polymer in plant cells

a)

cellulose

b)

starch

c)

glycogen

d)

triglyceride

e)

disaccharide

35.

Short-term energy storage in animals

a)

cellulose

b)

starch

c)

glycogen

d)

triglyceride

e)

disaccharide

36.

Highly branched polysaccharide found in animals

a)

cellulose

b)

starch

c)

glycogen

d)

triglyceride

e)

unsaturated fat

37.

What biomolecule is shown here?

a)

cellulose

b)

starch

c)

triglyceride

d)

disaccharide

38.

The main storage form of glucose in the body is:

a)

Mucin

b)

Iron

c)

Glycogen

d)

Salt

39.

Structural proteins

a)

form structures needed in the body

b)

are enzymes

c)

are fats

d)

are not needed for humans to live

40.

Which of the following are structural proteins? (choose all that apply)

a)

keratin

b)

elastin

c)

collagen

d)

insulin

41.

What structural protein makes up hair, nails, skin, feathers, beaks, hooves, horns and fur?

a)

elastin

b)

collagen

c)

keratin

d)

hemoglobin

42.

Which proteins give structure to skin, tendons, and ligaments?

a)

collagen & elastin

b)

activation energy

c)

nucleotides and lipids

d)

water and hemoglobin

43.

Which of the following are functional proteins? (check all that apply)

a)

antibodies

b)

amylase

c)

insulin

d)

keratin

44.

Most enzyme names end in which 3 letters?

a)

-ase

b)

-ate

c)

-ose

d)

-ion

45.

What are catalysts?

a)

chemicals that change the rate of chemical reactions

b)

DNA

c)

RNA

d)

Punnett Squares

46.

What are the reactants in the above chemical equation?

a)

oxygen and carbon dioxide

b)

oxygen and glucose

c)

carbon dioxide and glucose

d)

ATP and water

47.

What are the products in the above chemical equation?

a)

carbon dioxide, water, ATP

b)

oxygen and glucose

c)

carbon dioxide and glucose

d)

ATP and oxygen

48.

The amount of energy needed for a chemical reaction to occur is called

a)

amino energy

b)

polypeptide bonds

c)

activation energy

d)

denaturation

49.
What is the NH2 (nitrogen-containing) group on this amino acid called?
a)
amino group
b)
R group
c)
carboxyl group
50.
What type of protein would the collagen be?  (Collagen keeps your skin shaped smooth and your joints elastic.)
a)
structural
b)
storage
c)
transport
d)
contractile
51.
What monomer of a protein is being shown?
a)
monosaccharide
b)
glycerol and fatty acids
c)
amino acid
d)
nucleotide
52.
What is a type of protein that speeds up chemical reactions?
a)
sucrose
b)
insulin
c)
enzyme
d)
antibodies
53.
This transport protein is used to move Oxygen throughout the body (to and from red blood cells).  
a)
hemoglobin
b)
collagen
c)
insulin
d)
antibodies
54.
Linking several amino acids together produces what polymer?
a)
polysaccharide
b)
polypeptide
c)
polynucleotide
d)
triglyceride
55.
Larger polymers are formed when monomers are joined together by a _______ reaction.
a)
dehydration synthesis
b)
digestion
c)
hydrolysis
d)
redox
56.
The image depicts which level of structure in proteins?
a)
primary
b)
secondary
c)
tertiary
d)
quaternary
57.

The process by which protein conformation is lost or broken down is

a)

dehydration synthesis

b)

translation

c)

denaturation

d)

hydrolysis

58.

The diagram shows a bond forming between two amino acids. What is the name of this reaction?

a)

Dehydration Synthesis

b)

Hydrolysis

c)

Pepysis

d)

Oxidation

59.

Which category of carbon-based molecules includes sugars and starches?

a)

Unsaturated fatty acids

b)

Phospholipids

c)

Proteins

d)

Carbohydrates

60.

Which of the following is a molecule of glucose?

a)

A

b)

B

c)

C

d)

D

61.

What is the chemical formula for this polysaccharide?

a)

A. C6H12O6

b)

B. C18H36O18

c)

C. 3C6H12O6

d)

D. C18H32O16

62.

Which of the following refers to the process of hydrolysis?

a)

A. In hydrolysis, a molecule of water is released when two molecules are joined together.

b)

B. The end result of hydrolysis is a chain of molecules such as a polysaccharide.

c)

C. Water is needed for hydrolysis to take place.

d)

D. Hydrolysis is the process in which plants and animals create complex molecules such as carbohydrates and proteins.

63.

Which of the following best describes the formation of the bond shown in Figure 1 ?

a)

A. An ionic bond is formed between a carbon atom of one amino acid and the nitrogen atom of the other amino acid.

b)

B. An ionic bond is formed when the negative charge of an OH

group is balanced by the positive charge of a hydrogen ion.

c)

C. A covalent bond is formed between a carbon atom and a nitrogen atom along with the formation of H2O.

d)

A covalent bond is formed that replaces the hydrogen bond between the OH group and the H atom.

64.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

65.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
66.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
67.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
68.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
69.
The smallest particle of an element that shows all the properties of that element.
a)
Subatomic Particles
b)
Atom
c)
Quarks
d)
Gluons
70.
Arrangement of elements organized by atomic number
a)
Electron Cloud 
b)
Periodic Table 
c)
Electron Configuration
d)
None of these
71.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
72.
The only element with no neutrons in its nucleus.
a)
Oxygen
b)
Helium 
c)
Hydrogen
d)
Lithium
73.

Which part of the diagram represents the proton?

a)

a

b)

b

c)

c

d)

d

74.

The substance being dissolved is called the ________

a)

solvent

b)

solid

c)

solute

d)

solvate

75.

The most common lipid in foods and the body is:

a)

Sterols

b)

Phospholipids

c)

Triglycerides

76.
In an electron dot diagram, two pairs of shared electrons represents a ...
a)
single bond
b)
double bond
c)
triple bond
d)
quadruple bond
77.
Covalent bonds usually form when a nonmetal combines with a(an) METAL.
a)
True
b)
False
78.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
79.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
80.

How do atoms achieve an octet in triple covalent bonds?

a)

One atom completely loses six electrons to the other atom in the bond

b)

Two atoms share six pairs of electrons

c)

Two atoms share six electrons

d)

Two atoms share two electrons

81.

A bond formed between two bromine atoms is likely to be

a)

Ionic

b)

Coordinate covalent

c)

Polar

d)

Nonpolar

82.

Classify the following molecule.

a)

polar

b)

nonpolar

83.

Classify the following molecule.

a)

polar

b)

nonpolar

84.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
85.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
86.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
87.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
88.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
89.
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
90.
The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form
a)
less polar
b)
more polar
c)
less dense
d)
more dense
91.
When a molecule has an opposite electrical charge on each end, it is known as what?
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
92.

The ability of water molecules to stick to each other, creating surface tension is called:

a)

Cohesion

b)

Adhesion

c)

Insulation

d)

Ph

93.

Which of the following is the weakest acid?

a)

bananas (pH 5)

b)

tomatoes (pH 4)

c)

cheese (pH 6)

d)

orange juice (pH 3)

94.

Which of the following pH values represents the greatest concentration of -OH ions?

a)

3

b)

6

c)

9

d)

1

95.

Which of the following pH values represents the greatest concentration of H+ ions?

a)

3

b)

6

c)

9

d)

1

96.

The purpose of a buffer is to ___________.

a)

Neutralize an acid or base and maintain pH.

b)

Make your car's new wax look shiny.

c)

Add volume to your hair.

d)

All of the above.

97.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
98.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
99.
What is the activation energy?
a)
The energy of the products
b)
The energy of the reactants
c)
The minimum energy needed by the reactants to form the products.
d)
The energy lost in the reaction
100.
Which letter corresponds to the energy of the products?
a)
A
b)
B
c)
C
d)
D
101.

The amount of energy needed for a reaction to occur.

a)

Transition state

b)

Catalyst

c)

Activation energy

d)

Reaction energy

Similar Resources on Wayground

Periodic Table and Trends

100 questions

Periodic Table and Trends

quiz

Worksheet

•

9th - 12th Grade

Chemistry Midterm Review

105 questions

Chemistry Midterm Review

quiz

Worksheet

•

11th - 12th Grade

Assessment: Nuclear Energy

98 questions

Assessment: Nuclear Energy

quiz

Worksheet

•

9th - 12th Grade

Module 1 InorgChem Green PACOP 201-300

100 questions

Module 1 InorgChem Green PACOP 201-300

quiz

Worksheet

•

KG - Professional Dev...

SEMESTER 1 REVIEW Intro to Chem/Physics

101 questions

SEMESTER 1 REVIEW Intro to Chem/Physics

quiz

Worksheet

•

9th - 12th Grade

Polyatomic Ions Practice

106 questions

Polyatomic Ions Practice

quiz

Worksheet

•

10th - 12th Grade

Periodic Table Elements

96 questions

Periodic Table Elements

quiz

Worksheet

•

9th - 12th Grade

Honors Chemistry Tri A Review

103 questions

Honors Chemistry Tri A Review

quiz

Worksheet

•

10th - 12th Grade