WorksheetsUnit 1 Test
Total questions: 65
Worksheet time: 56mins
Name
Class
Date
1.
What type of macromolecule is being represented in this image?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
2.
What are the building blocks of proteins?
a)
amino acid
b)
fatty acid
c)
nucleotide
d)
lipid
3.
What are the single sugars that are the building blocks of carbohydrates?
a)
monosaccharides
b)
disaccharides
c)
polysaccharides
d)
amino acid
4.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
5.
DNA and RNA are examples of...
a)
proteins
b)
nucleic acids
c)
carbohydrates
d)
lipids
6.
Another name for fats and oils
a)
proteins
b)
sugar
c)
lipids
d)
nucleic acids
7.
What is the function of nucleic acids?
a)
Stores energy
b)
Stores genetic information
c)
Movement
d)
Physical structure
8.
What is the monomer of nucleic acids?
a)
Glycerol
b)
Monosaccharides
c)
Amino Acids
d)
Nucleotides
9.
What are the four macromolecules?
a)
proteins, nucleic acids, carbohydrates, and lipids
b)
monosaccharides, lipids, polysaccaharides, and proteins
c)
RNA, DNA, proteins, and carbohydrates
d)
proteins, DNA, RNA, and steroids
10.
Which of the following is a lipid?
a)
cholesterol
b)
cellulose
c)
glucose
d)
protein
11.
A monosaccharide is a subunit of a:
a)
nucleic acid
b)
lipid
c)
carbohydrate
d)
protein
12.
What suffix (word ending) is used in the names of most carbohydrates?
a)
-ase
b)
-nic
c)
-ose
d)
-yme
13.
All organic compounds contain the element
a)
carbon
b)
nitrogen
c)
phosphorus
d)
sulfur
14.
Which is the monomer (building block) for lipids?
a)
fatty acids & glycerol
b)
nucleotide
c)
amino acids
d)
monosaccharide
15.
What is the function of carbohydrates?
a)
store genetic information
b)
store energy (long-term)
c)
store energy (short-term)
d)
build skin, hair, nails, muscles
16.
What molecule is used for LONG term energy storage?
a)
carbohydrates
b)
lipids
c)
protiens
d)
nucleic acid
17.
Subunit is to Macrocolecule like ___ is to ____
a)
Building is to Bricks.
b)
Brick is to Building.
c)
Carpenter is to Building.
d)
Building is to Carpenter.
18.
Which of the following elements make up nucleic acids?
a)
C, H, O
b)
C, H, O, N
c)
C, H, O, N, P
d)
C, H, O, Ca, S
19.
Carbohydrates are made of...
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
20.
Which macromolecule is shown?
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
21.
What elements make up carbohydrates?
a)
Carbon, hydrogen, nitrogen, oxygen
b)
sulfur, carbon, hydrogen
c)
glucose and fructose
d)
carbon, hydrogen, oxygen
22.
may be saturated or unsaturated
a)
carbs
b)
lipids
c)
proteins
d)
nucleic acids
23.
cellulose, glycogen, starch, or chitin
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acid
24.
Which of the following words is incorrectly matched with its meaning?
a)
Di = Two
b)
Mono = One
c)
Poly = Four
d)
Tri = Three
25.
Which biomolecule stores genetic information?
a)
Carbohydrate
b)
Lipid
c)
Nucleic Acid
d)
Protein
26.
Which major macromolecule is being represented in this image?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
27.
Enzymes are considered to be
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
28.
what is an atom
a)
smallest part of the universe
b)
smallest part of a substance
c)
smallest part of anything
d)
smallest part of water
29.
protons
a)
negative charge, nucleus
b)
positive charge, shells
c)
positive charge , nucleus
d)
neutral charge, nucleus
30.
neutrons
a)
no charge, shells
b)
positive charge, nucleus
c)
neutral, no charge, nucleus
d)
negative charge, shells
31.
electrons
a)
no charge, nucleus
b)
positive charge, nucleus
c)
negative charge, shells
d)
negative charge, nucleus
32.
A molecule is
a)
a singular particle of a particular element
b)
another name for an element
c)
2 or more atoms that are combined
33.
bases are the same as an acid
a)
true
b)
false
34.
The nucleus of an atom is made up of...
a)
Protons and Neutrons
b)
Neutrons and Electrons
c)
Protons and Electrons
35.
A(n) ____________________ is a pure substance made of a single type of atom and cannot be broken down.
a)
Element
b)
Compound
c)
Molecule
d)
Mixture
36.
What holds atoms, molecules, and compounds together?
a)
Chemical Bonds
b)
Electromagnetism
c)
Magnetism
d)
Electricity
37.
In chemical compounds, covalent bonds form when
a)
the electronegativity difference between two atoms is very large.
b)
electrons are completely transferred between two atoms.
c)
pairs of electrons are shared between two atoms.
d)
ions are held together by opposite charges.
38.
The factor that does not change or vary.
a)
Constant
b)
Variable
39.
What is water?
a)
An atom
b)
A molecule composed of 2 parts Oxygen and one part Hydrogen
c)
A molecular compound composed of 2 parts Hydrogen and one part Oxygen
d)
A pure substance composed of 2 parts Hydrogen and one part Oxygen
40.
Is the density of water ice lower, higher, or the same as liquid water?
a)
Lower
b)
Higher
c)
The same
d)
Um... what is density again
41.
What is adhesion?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
42.
What is cohesion?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
43.
What is surface tension?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
44.
Large bodies of water do not quickly fluctuate in temperature. Why?
a)
Water is a solvent.
b)
Water has a high heat capacity.
c)
Water acts as a buffer.
d)
Water is non-polar.
45.
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
46.
Which statement explains why water molecules stick together?
a)
both sides are negative
b)
one side has a positive charge and the other side has a negative charge
c)
one side has a negative charge adn the other side has a neutral charge
d)
both sides are positive
47.
Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?
a)
Water expands as it freezes.
b)
Water is an excellent solvent.
c)
Water exhibits cohesive behavior.
d)
Water is able to moderate temperature.
48.
Water is often called the "universal solvent" because many substances can be dissolved in water. What property of water allows it to be such a versatile solvent?
a)
purity
b)
polarity and cohesion
c)
high heat capacity
d)
expansion upon freezing
49.
Water has a much higher specific heat than most other covalent compounds. What do you predict might happen if water had a low specific heat instead?
a)
Flooding would occur and animals would be forced to migrate
b)
Harmful organisms living in water would reproduce at a rapid rate
c)
Organisms that are sensitive to changes in temperature would die
d)
Plants would not have enough water to effectively carry out photosynthesis
50.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
51.
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
52.
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
53.
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
54.
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
55.
What is an observation?
a)
Something you measure or detect with your senses.
b)
The way you feel about something
c)
An educated guess
d)
A theory that has been disproved
56.
An inference is based on:
a)
both scientific observations and known facts
b)
known facts
c)
scientific observations
d)
a rumor you started in the bathroom
57.
What is a hypothesis?
a)
An educated prediction or answer to a testable question
b)
A random guess
c)
An observation based on feelings or emotions
d)
58.
An observation that is measurable and made with tools (such as a ruler or scale) is what type
a)
quantitative
b)
qualitative
c)
koalatative
59.
After the data is analyzed the hypothesis is stated as correct or incorrect in the __________
a)
conclusion
b)
experiment
c)
hypothesis
d)
table of contents
60.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
61.
When making an observation, you must use...
a)
Only Sight
b)
Smell & Touch
c)
ALL 5 Senses
d)
Only Taste
62.
During this step of the scientific method, a scientist would gather background information.
a)
Hypothesis
b)
Research
c)
Observation
d)
Experiment
63.
List the Scientific Process steps in order.
a)
Observation, Question, Hypothesis, Experiment, Data, Conclusion
b)
Conclusion, Observation, Experiment, Data, Hypothesis
c)
Observation, Experiment, Hypothesis, Conclusion, Data, Question
d)
None of the above
64.
Which of the following is an observation of the picture?
a)
The person is wearing a T-shirt
b)
It is a sunny day
c)
The person is going to a birthday party
d)
The gift is a DVD player
65.
What is an inference?
a)
Just a guess.
b)
A statement based off of your observations.
c)
The same as an observation.
d)
Examples of something.
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