Worksheetsunit 1 retest review
Total questions: 134
Worksheet time: 2hrs 41mins
Name
Class
Date
1.
Which of the following is the correct order of organization in living things from most basic (simple) to most complex?
a)
a. Organism, cell, tissue, organ, organ system
b)
a. Organ system, organ, tissue, cell, organism
c)
a. Cell, tissue, organ, organ system, organism
d)
a. Cell, organ, tissue, organ, organism, organ system
2.
Anything that can perform life processes by itself is a/an
a)
cell
b)
organ
c)
organism
d)
organ system
3.
A group of similar cells that come together to perform a specific function is a/an
a)
organ
b)
organism
c)
organ system
d)
tissue
4.
When a group of organs work together to perform a particular function they create a/an
a)
organ system
b)
organism
c)
tissue
d)
organ
5.
The smallest level of organization of life in an organism
a)
tissue
b)
cell
c)
organ
d)
organ system
6.
The basic unit of structure and function in the human body is the....
a)
organ
b)
organ system
c)
cell
d)
tissue
7.
Which level of organization is the most complex?
a)
organism
b)
population
c)
community
d)
ecosystem
8.
which is another word for an organism?
a)
abiotic factor
b)
biotic factor
c)
nonliving thing
9.
How many valence electrons does Hydrogen have?
a)
1
b)
2
c)
3
d)
4
10.
How many valence electrons does Carbon have?
a)
4
b)
12
c)
6
d)
14
11.
How many valence electrons does magnesium have?
a)
1
b)
2
c)
12
d)
24
12.
How many valence electrons does Neon have?
a)
18
b)
8
c)
10
d)
2
13.
How many valence electrons does Sulfur
a)
16
b)
32
c)
6
d)
3
14.
The monomer of a lipid is called...
a)
a nucleotide
b)
a monosaccharide
c)
an amino acid
d)
a fatty acid
15.
The monomer of a protein is called...
a)
an amino acid
b)
a monosaccharide
c)
a fatty acid
d)
a nucleotide
16.
The monomer of a nucleic acid is called...
a)
an amino acid
b)
a fatty acid
c)
a monosaccharide
d)
a nucleotide
17.
The monomer of a carbohydrate is called...
a)
a monosaccharide
b)
a fatty acid
c)
an amino acid
d)
a nucleotide
18.
Monomers combine to form ________ through the process of ________.
a)
polymers; hydrolysis
b)
polymers; dehydration synthesis
c)
monomers; hydrolysis
d)
monomers; dehydration synthesis
19.
Fatty acids and glycerol form the polymer....
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acids
20.
amino acids are connected with ______ bonds to form _______.
a)
peptide; proteins
b)
peptide; lipids
c)
hydrogen; proteins
d)
hydrogen; lipids
21.
Nucleotides combine to form...
a)
lipids
b)
carbohydrates
c)
proteins
d)
nucleic acids
22.
monosaccharides combine to form....
a)
carbhoydrates
b)
lipids
c)
proteins
d)
nucleic acids
23.
____________ is a synonym for protein.
a)
Polysaccharide
b)
Polypeptide
c)
Polymerose
d)
Polyprotein
24.
Which of the following is an example of an enzyme?
a)
glucose
b)
lipase
c)
DNA
d)
polysaccharide
25.
This molecule is a ____.
a)
adenosine triphosphate
b)
polysaccharide
c)
phospholipid
d)
nitrogen base
26.
This molecule is a ____.
a)
adenosine triphosphate
b)
polysaccharide
c)
phospholipid
d)
nitrogen base
27.
This molecule would make up a ____.
a)
nucleotide
b)
amino acid
c)
steroid
d)
disaccharide
28.
What type of fatty acid is shown here? Note that the (b) is just another way of showing the same thing as (a)
a)
saturated
b)
unsaturated
29.
The molecule show is a ______ and is the building block of _____.
a)
monosaccharide, carbohydrate
b)
fatty acid, lipid
c)
nucleotide, nucleic acids
d)
amino acid, protein
30.
What type of carbohydrate is shown?
a)
monosaccharide
b)
disaccharide
c)
polysaccharide
31.
These molecules are all examples of ____.
Note that each molecule is shown in its ring and chain form.
Note that each molecule is shown in its ring and chain form.
a)
monosaccharides
b)
disaccharides
c)
polysaccharides
32.
What type of molecule is shown?
a)
steroid
b)
polysaccharide
c)
polypeptide
d)
fatty acid
33.
The molecules shown here are all examples of _____.
a)
polypeptides
b)
disaccharides
c)
polysaccharides
d)
triglycerides
34.
Which are the monomers for carbohydrates?
a)
monosaccharides
b)
disaccharides
c)
polysaccharides
35.
Which are composed of two carbohydrate monomers?
a)
monosaccharides
b)
disaccharides
c)
polysaccharides
36.
Which of the following is a formula for a carbohydrate?
a)
C6H6O6
b)
C10H20O20
c)
C9H18O9
d)
C8H4O8
37.
Which of the following is a monosaccharide?
a)
glucose
b)
lactose
c)
sucrose
d)
starch
38.
Fructose is a _____.
a)
monosaccharide
b)
dissacharide
c)
polysaccharide
d)
complex carbohydrate
39.
Galactose is a _____.
a)
monosaccharide
b)
dissacharide
c)
polysaccharide
d)
complex carbohydrate
40.
Lactose is a _____.
a)
monosaccharide
b)
dissacharide
c)
polysaccharide
d)
complex carbohydrate
41.
Sucrose is a _____.
a)
monosaccharide
b)
dissacharide
c)
polysaccharide
d)
complex carbohydrate
42.
Steroids are a type of ________.
a)
Nucleic Acid
b)
Lipid
c)
Cholesterol
d)
Protein
43.
The monomer of a protein is called...
a)
an amino acid
b)
a monosaccharide
c)
a fatty acid
d)
a nucleotide
44.
How was the structure in the image built?
a)
By adding 1 H2O
b)
By adding 2 H2O
c)
By removing 1 H2O
d)
By removing 2 H2O
45.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates
b)
Proteins
c)
Phospholipids
d)
Cholesterol
46.
Testosterone and estrogen are types of...
a)
Waxes
b)
Steroids
c)
Cholesterol
d)
Carbohydrates
47.
Butter is a/an...
a)
Saturated fat
b)
Unsaturated fat
c)
Trans-fat
d)
Saturated protein
48.
This compound is...
a)
a fatty acid
b)
a glucose
c)
an enzyme
d)
a hydrolyzed leukocyte
49.
This picture shows triglyceride. What does your body use triglyceride for?
a)
Energy storage
b)
It doesn't use it for anything
c)
To build muscles
d)
Used for photosynthesis
50.
DNA and RNA are examples of...
a)
proteins
b)
nucleic acids
c)
carbohydrates
d)
lipids
51.
What is the function of nucleic acids?
a)
Stores energy
b)
Stores genetic information
c)
Movement
d)
Physical structure
52.
What is the monomer of nucleic acids?
a)
Glycerol
b)
Monosaccharides
c)
Amino Acids
d)
Nucleotides
53.
Which of the following is a purine?
a)
Cytosine
b)
Thymine
c)
Adenine
54.
Is this a purine or a pyrimadine?
a)
Purine
b)
Pyrimadine
55.
Adenine is which type of base?
a)
Purine
b)
Pyrimidine
56.
Cytosine is which type of base?
a)
Purine
b)
Pyrimidine
57.
RNA contains the sugar...
a)
Deoxyribose
b)
Glucose
c)
Ribose
d)
Lipids
58.
Which macromolecule is shown?
View Figure 2 (if not visible)
View Figure 2 (if not visible)
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
59.
How many structures or stages are there in proteins?
a)
1
b)
2
c)
3
d)
4
60.
What is the function of a protein?
a)
cell energy
b)
enzymes and body tissue
c)
long term energy storage
d)
contain genetic information
61.
The name of the initial chain of monomers in a protein is called.....
a)
polypeptide
b)
polysaccharide
c)
polyester
d)
polynucleotide
62.
The two types of folding in the secondary structure are.....
a)
alpha-helix & beta-pleated sheets
b)
polypeptide & nucleotide
c)
globular & fibrous
63.
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
64.
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'
65.
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
66.
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
67.
Changes in pH and temperature can damage an enzymes active site. What is this called?
a)
reusable
b)
catalyst
c)
specific
d)
denature
68.
What structure is this protein?
a)
primary
b)
secondary
c)
tertiary
d)
quaternary
69.
The order of the amino acids occur in the chain
a)
disulfide cross-link
b)
hydrophobic
c)
primary structure
d)
secondary structure
70.
Refers to the three-dimensional structure of an entire amino acid chain in a protein molecule
a)
tertiary structure
b)
primary structure
c)
secondary structure
d)
fibrous proteins
71.
Why do cells need a buffer system?
a)
Chemical processes in the cell are sensitive to the concentration of H+ and OH-
b)
Cells do not have a buffer system
c)
Cells need acids and bases to survive
d)
The pH range of cells can withstand large changes
72.
If some process releases acid [H+] into the blood, this equilibrium responds by shifting to the left as long as there is HCO3-present for the H+ to react with, thus removing the excess H+ions. What happens after the release of H+?
a)
pH never lowers
b)
pH is lowered and then immediately restored
c)
pH raises and then is restored
d)
ph lowers and remains low
73.
A phospholipid has 2 parts. What are they called?
a)
Hydrophilic Head, Hydrophobic Tail
b)
Hydrophobic Head, Hydrophilic Tail
74.
A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails.
a)
phospholipid
b)
Carbohydrate
c)
Cholesterol
d)
Protein
75.
___________ helps keep the phospholipid tails from sticking together and makes it more fluid.
a)
Carbohydrates
b)
Proteins
c)
Phospholipids
d)
Cholesterol
76.
The cell membrane is made up of what bio-molecule?
a)
Phospholipids
b)
Proteins
c)
Carbohydrates
d)
Nucleic Acids
77.
This picture shows what type of lipid?
a)
unsaturated fat
b)
wax
c)
saturated fat
d)
steroid
78.
This molecule is a
a)
carbohydrate
b)
nucleic acid
c)
protein
d)
lipid
79.
Which type of molecule is shown?
a)
Saturated Fat acid
b)
Monounsaturated Fatty acid
c)
Polyunsaturated Fatty acid
d)
Cholesterol
80.
What is the key difference between saturated and unsaturated fats?
a)
Saturated fats are usually liquid at room temperature; unsaturated fats are usually solid
b)
Saturated fats stay solid at room temperature; unsaturated fats are usually liquid
c)
Saturated fats can be found in vegetable oils, unsaturated fats can be found in animal products
d)
Saturated fats are healthier than unsaturated fats
81.
This reaction shows the formation of a:
a)
Disaccharide
b)
Dipeptide
c)
Triglyceride
d)
Glycosidic Linkage
82.
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
83.
The bond that joins amino acids are called:
a)
Peptide Bonds
b)
Ester Bonds
c)
Glycosidic Linkages
d)
Phosphodiester Bonds
84.
What level of structure is used to describe 2 or more 3D polypeptides coming together to form a functional protein?
a)
Primary
b)
Secondary
c)
Tertiary
d)
Quaternary
85.
Amino acids all have the same general structure except for the:
a)
Amino Group
b)
Carboxyl Group
c)
'R' Group
d)
Carbonyl Group
86.
The reaction used to digest and break the bond in red is:
a)
Hydrolysis
b)
Dehydration Synthesis
c)
Oxidation
d)
Single Displacement
87.
Which parts of your body are made of proteins?
a)
Hair
b)
Muscles
c)
Fingernails
d)
All of these
88.
Homeostasis
a)
allows for a wildly fluctuating internal environment
b)
is impossible in vertebrates
c)
is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
d)
is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
89.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
90.
What type of feedback loop is shown?
a)
negative
b)
neutral
c)
positive
91.
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels.
a)
Positive Feedback Response
b)
Negative Feedback Loop
92.
A forest full of many kinds of trees and grasses is an example of a
a)
group
b)
organism
c)
population
d)
community
93.
Multiple organisms of the same species describes a
a)
organism
b)
population
c)
community
d)
ecosystem
94.
What do ecosystems have that the other three levels of organization do not have?
a)
living things
b)
biotic factors
c)
abiotic factors
d)
organisms
95.
which is the correct order of the levels of organization from simple to complex?
a)
organism, population, community, ecosystem
b)
ecosystem, community, population, organism
96.
Which of the following is the correct order of organization in living things from most basic (simple) to most complex?
a)
a. Organism, cell, tissue, organ, organ system
b)
a. Organ system, organ, tissue, cell, organism
c)
a. Cell, tissue, organ, organ system, organism
d)
a. Cell, organ, tissue, organ, organism, organ system
97.
What are the 4 elements that make up the majority of living things?
a)
carbon, hydrogen, oxygen, and nitrogen
b)
helium, neon, krypton, and argon
c)
phosphorus, potassium, iron, and zinc
d)
magnesium, sulfur, calcium, and sodium
98.
What is the monomer of a lipid?
a)
monosaccharide
b)
nucleic acid
c)
fatty acid
d)
amino acid
99.
All of the following are lipids except __________
a)
ear wax
b)
vegetable oil
c)
triglycerides
d)
starch
100.
Which type of bond has an equal sharing of electrons?
a)
Polar Covalent
b)
Non Polar Covalent
c)
Ionic
d)
Metallic
101.
Which type of bond has an unequal sharing of electrons?
a)
Polar Covalent
b)
Non Polar Covalent
c)
Ionic
d)
Metallic
102.
What property of water allows it to be such a versatile solvent that it is often called the "universal solvent?"
a)
Purity
b)
Polarity and cohesion
c)
High heat capacity
d)
Expansion upon freezing
103.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
104.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
105.
Water is polar because...
a)
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
b)
The molecule has two poles, at which the it is colder than other regions of the molecule.
c)
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
d)
The water molecule is neutral.
106.
A phospholipid has 2 parts. What are they called?
a)
Hydrophilic Head, Hydrophobic Tail
b)
Hydrophobic Head, Hydrophilic Tail
107.
"Water Loving"
a)
Hydrophobic
b)
Hydrophilic
c)
Hydroelectric
d)
Hydroloric
108.
"Water Fearing"
a)
Hydrophobic
b)
Hydrophilic
c)
Hydroelectric
d)
Hydroloric
109.
What is the main buffer in our body?
a)
Bicarbonate
b)
Alkaline
c)
Carbondioxide
d)
Hydrochloric acid
110.
One of the buffers that contribute to pH stability in human blood is carbonic acid (H2CO3). Carbonic acid is a weak acid that dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+).
Thus,H2CO3 → HCO3- + H+
If the pH of the blood increases, one would expect :
Thus,H2CO3 → HCO3- + H+
If the pH of the blood increases, one would expect :
a)
An increase in the concentration of H2CO3 and an increase in the concentration of HCO3-.
b)
The concentration of hydroxide ion (OH-) to increase.
c)
the HCO3- to act as a base and remove excess H+ with the formation of H2CO3.
d)
the HCO3- to act as an acid and remove excess H+ with the formation of H2CO3.
111.
One of the buffers that contribute to pH stability in human blood is carbonic acid (H2CO3). Carbonic acid is a weak acid that dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+). Thus,
H2CO3 → HCO3- + H+
If the pH of the blood decreases, one would expect
H2CO3 → HCO3- + H+
If the pH of the blood decreases, one would expect
a)
a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3-.
b)
the concentration of hydroxide ion (OH-) to increase.
c)
the concentration of bicarbonate ion (HCO3-) to increase.
d)
the HCO3- to act as a base and remove excess H+ with the formation of H2CO3.
112.
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.
113.
Water striders can walk across the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?
a)
The insects are light enough so they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.
c)
The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
114.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
115.
Which is NOT a unique property of water?
a)
Frozen water floats on liquid water.
b)
Water covers most of the Earth’s surface and retains a large amount of heat.
c)
Water molecules stick to each other through hydrogen bonds.
d)
Water cools very rapidly.
116.
What property of water helps to moderate earth's temperature?
a)
adhesion
b)
chohesion
c)
Specific heat capacity
d)
Latent heat of vaporization
117.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
118.
Water is polar because...
a)
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
b)
The molecule has two poles, at which the it is colder than other regions of the molecule.
c)
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
d)
The water molecule is neutral.
119.
Why can water have no net charge but have slight charges in different parts of the molecule?
a)
The oxygen end is slightly negative and the hydrogen end is slightly positive
b)
The hydrogen end is slightly negative and the oxygen end is slightly positive
c)
The hydrogen and oxygen ends change in polarity
d)
Because it is hydrophobic
120.
The reason the water balloon did NOT pop while held over a flame is water's _________.
a)
Less dense than air.
b)
Hydrogen bonds between water molecules.
c)
polarity.
d)
high specific heat capacity.
121.
Water beads up on the surface of a penny because of this property.
a)
Adhesion
b)
High Surface Tension
c)
Universal Solvent
d)
Changes in Density
122.
Most of water's properties occur because it is...
a)
A polar covalent
b)
Made with oxygen
c)
A polar ionic
d)
Makes up 75% of the Earth
123.
Refer to the picture; this is occurring because of:
a)
Adhesion
b)
Cohesion
124.
Refer to the picture; this is occurring due to:
a)
Adhesion
b)
Cohesion
125.
Cohesion and adhesion have this in common:
a)
Hydrogen bonding
b)
They create non-polar molecules
c)
Only relate to water
d)
Universal solvent
126.
Which of the following terms identifies the change from a liquid to gas?
a)
Vaporization
b)
Condensation
c)
Deposition
d)
Sublimation
127.
Which of the following terms identifies the change from a liquid to solid?
a)
Melting
b)
Condensation
c)
Vaporization
d)
Freezing
128.
Melting is ...
a)
liquid to solid
b)
solid to liquid
c)
solid to gas
d)
gas to liquid
129.
Freezing is...
a)
Solid to gas
b)
Liquid to solid
c)
Gas to solid
d)
Liquid to gas
130.
Boiling is ...
a)
liquid to gas
b)
gas to solid
c)
gas to liquid
d)
solid to liquid
131.
Which state of matter has particles arranged like this?
a)
solid
b)
liquid
c)
gas
132.
Thermal energy is...
a)
heat energy
b)
the energy of motion
c)
energy of nuclear processes.
d)
an indication of physical change.
133.
At higher temperatures
a)
particles in an object have less kinetic energy
b)
particles in an object move faster
c)
a gas contracts
134.
"Kinetic" refers to
a)
motion
b)
heat
c)
density
d)
forces
100 %
