Microbiology 020 - General Microbiology » Spring 2022 » Chapter 7 Chemistry Quiz
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Microbiology 020 - General Microbiology ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Match the chemical term with the correct definition: Elements
A.
The smallest particles of an element that still retain that element's characteristics
B.
Two or more atoms connected by chemical bonds
C.
Substances that cannot be broken down into other substances by chemical reactions
D.
Substances consisting of two or more different elements in a fixed ratio
Question #2
Match the chemical term with the correct definition: Compounds
A.
Atoms of the same element with different atomic masses
B.
The smallest particles of an element that still retain that element's characteristics
C.
Substances consisting of two or more different elements in a fixed ratio
D.
Two or more atoms connected by chemical bonds
Question #3
Match the chemical term with the correct definition: Atoms
A.
The smallest particles of an element that still retain that element's characteristics
B.
Charged particles formed by the gain or loss of electrons
C.
Unstable or radioactive forms of an atom that decay over time
D.
Atoms of the same element with different atomic masses
Question #4
Match the chemical term with the correct definition: Molecules
A.
Two or more atoms connected by chemical bonds
B.
Substances consisting of two or more different elements in a fixed ratio
C.
Substances that cannot be broken down into other substances by chemical reactions
D.
The smallest particles of an element that still retain that element's characteristics
Question #5
Match the chemical term with the correct definition: Isotopes
A.
Atoms of the same element with different atomic masses
B.
Unstable or radioactive forms of an atom that decay over time
C.
Charged particles formed by the gain or loss of electrons
D.
Substances that cannot be broken down into other substances by chemical reactions
Question #6
Match the chemical term with the correct definition: Radioisotopes
A.
The smallest particles of an element that still retain that element's characteristics
B.
Two or more atoms connected by chemical bonds
C.
Charged particles formed by the gain or loss of electrons
D.
Unstable or radioactive forms of an atom that decay over time
Question #7
Match the chemical term with the correct definition: Ions
A.
The smallest particles of an element that still retain that element's characteristics
B.
Substances consisting of two or more different elements in a fixed ratio
C.
Charged particles formed by the gain or loss of electrons
D.
Substances that cannot be broken down into other substances by chemical reactions
Question #8
Atoms are made up of the following number of different subatomic particles:
A.
four
B.
three
C.
two
Question #9
The subatomic particles with a negative charge are called ______.
A.
neutron
B.
proton
C.
electron
Question #10
The nucleus of an atom is made up of ____ and neutrons . As a result, the charge of the nucleus of an atom is _____.
A.
protons, positive
B.
protons, negative
C.
neutron, positive
Question #11
Atoms have no overall charge because the number of electrons is always equal to the number of _____
A.
neutron
B.
protons
C.
electron
Question #12
The four most abundant elements in living organisms are:
A.
carbon, hydrogen, oxygen, and nitrogen
B.
calcium, carbon, oxygen, and nitrogen
C.
calcium, oxygen, hydrogen, and nitrogen
D.
carbon, oxygen, hydrogen, and phosphorus
E.
carbon, oxygen, nitrogen, and sulfur
F.
none of these choices
Question #13
Which of the following isotopes of carbon is radioactive and commonly used for dating fossils?
A.
Carbon-12
B.
Carbon-13
C.
Carbon-14
D.
All of these choices
E.
Carbon-11
F.
None of these choices
Question #14
Match the element with the best description of its importance and functions in living organisms: Carbon
A.
Most abundant element in living organisms
B.
Use to make proteins and nucleic acids (DNA/RNA)
C.
Required fo proper thyroid gland function
D.
Forms the backbone of all organic compounds
Question #15
Match the element with the best description of its importance and functions in living organisms: Oxygen
A.
Required fo proper thyroid gland function
B.
Use to make proteins and nucleic acids (DNA/RNA)
C.
Essential for hemoglobin and red blood cell formation
D.
Most abundant element in living organisms
Question #16
Match the element with the best description of its importance and functions in living organisms: Nitrogen
A.
Major electrolyte. Important for fluid balance
B.
Essential for hemoglobin and red blood cell formation
C.
Required for teeth and bone formation
D.
Use to make proteins and nucleic acids (DNA/RNA)
Question #17
Match the element with the best description of its importance and functions in living organisms: Iodine
A.
Used to make nucleic acids, ATP,and phosolipids
B.
Required for teeth and bone formation
C.
Required fo proper thyroid gland function
D.
Third most abundant element in living organisms found in water and most oganic compounds
Question #18
Match the element with the best description of its importance and functions in living organisms: Iron
A.
Forms the backbone of all organic compounds
B.
Essential for hemoglobin and red blood cell formation
C.
Most abundant element in living organisms
D.
Use to make proteins and nucleic acids (DNA/RNA)
Question #19
Match the element with the best description of its importance and functions in living organisms: Sodium
A.
Required for teeth and bone formation
B.
Used to make nucleic acids, ATP,and phosolipids
C.
Major electrolyte. Important for fluid balance
D.
Third most abundant element in living organisms found in water and most oganic compounds
Question #20
Match the element with the best description of its importance and functions in living organisms: Calcium
A.
Essential for hemoglobin and red blood cell formation
B.
Major electrolyte. Important for fluid balance
C.
Required for teeth and bone formation
D.
Required fo proper thyroid gland function
Question #21
Match the element with the best description of its importance and functions in living organisms: Hydrogen
A.
Most abundant element in living organisms
B.
Forms the backbone of all organic compounds
C.
Used to make nucleic acids, ATP,and phosolipids
D.
Third most abundant element in living organisms found in water and most oganic compounds
Question #22
Match the element with the best description of its importance and functions in living organisms: Phosphorus
A.
Required fo proper thyroid gland function
B.
Use to make proteins and nucleic acids (DNA/RNA)
C.
Used to make nucleic acids, ATP,and phosolipids
D.
Most abundant element in living organisms
Question #23
Match the term with its correct description: Nonpolar covalent bond
A.
Unequal sharing of electrons
B.
Attraction between cations and anions
C.
Attraction between partial positive and partial negative charges. These relatively weak bonds determine many of the properties of water
D.
Equal sharing of electrons
Question #24
Match the term with its correct description: Polar covalent bond
A.
Negative ion
B.
Equal sharing of electrons
C.
Positive ion
D.
Unequal sharing of electrons
Question #25
Match the term with its correct description: Ionic bond
A.
Unequal sharing of electrons
B.
Attraction between partial positive and partial negative charges. These relatively weak bonds determine many of the properties of water
C.
Equal sharing of electrons
D.
Attraction between cations and anions
Question #26
Match the term with its correct description: Hydrogen bond
A.
Attraction between partial positive and partial negative charges. These relatively weak bonds determine many of the properties of water
B.
Attraction between cations and anions
C.
Positive ion
D.
Negative ion
Question #27
Match the term with its correct description: Cation
A.
Positive ion
B.
Unequal sharing of electrons
C.
Equal sharing of electrons
D.
Negative ion
Question #28
Match the term with its correct description:Anion
A.
Attraction between partial positive and partial negative charges. These relatively weak bonds determine many of the properties of water
B.
Positive ion
C.
Attraction between cations and anions
D.
Negative ion
Question #29
Two highly electronegative elements that are commonly found in polar organic molecules are:
A.
Oxygen and nitrogen
B.
None of these choices
C.
Oxygen and hydrogen
D.
Carbon and hydrogen
E.
Carbon and oxygen
F.
Sulfur and carbon
Question #30
Which of the following properties of water is related to its ability to form Hydrogen or H-bonds?
A.
Cohesion
B.
None of these properties
C.
Surface tension
D.
Good solvent
E.
All of these properties
F.
High specific heat
Question #31
Solution A has a pH of 4 and solution B has a pH of 7. Which of the following statements is true?
A.
Solution A is 30X more acidic than solution B
B.
Solution A is acidic and solution B is basic
C.
Solution B is 30X more acidic than solution A
D.
Solution B is 1000X times more acidic than solution A
E.
Solution A is 1000X more acidic than solution B
F.
Solution A and solution B are equally acidic
Question #32
Fill in the blanks with a single word, number, or term: A solution is a homogeneous mixture of _____ or more substances.
A.
four
B.
one
C.
two
D.
three
Question #33
Fill in the blanks with a single word, number, or term: An aqueous solution is one in which the _____ is water.
A.
solute
B.
solvents
C.
hydrophilic
Question #34
Fill in the blanks with a single word, number, or term: In a solution of sugar and water, sugar is the ____ .
A.
solutes
B.
hydrophilic
C.
solvent
Question #35
Fill in the blanks with a single word, number, or term: A solute that is attracted to water and dissolves in water is called .
A.
polar
B.
solute
C.
solvent
Question #36
Fill in the blanks with a single word, number, or term: Oil is an example of a substance that does not dissolve in water and is _____ .
A.
hydrophilic
B.
nonpolar
C.
solvent
Question #37
Match the element with the number of covalent bonds they typically form: Carbon
A.
4
B.
2
C.
0
D.
3
Question #38
Match the element with the number of covalent bonds they typically form: Nitrogen
A.
0
B.
4
C.
3
D.
1
Question #39
Match the element with the number of covalent bonds they typically form: Oxygen
A.
2
B.
0
C.
4
D.
3
Question #40
Match the element with the number of covalent bonds they typically form: Hydrogen
A.
1
B.
2
C.
0
D.
4
Question #41
Match the element with the number of covalent bonds they typically form: Helium
A.
2
B.
1
C.
0
D.
3
Question #42
Water has the ability to dissociate or separate into H+ and OH- ions. When a solution is neutral, the concentration of [H+] ions is _____ to the concentration of OH- ions.
A.
equal
B.
less than
C.
greater than
Question #43
In acidic solutions, the concentration of [H+] ions is _______ than the concentration of OH- ions.
A.
greater
B.
less
Question #44
The pH scale ranges from 0 to ______ . A neutral solution has a pH of ________ .
A.
5, 10
B.
7, 14
C.
14, 7
D.
10, 7
Question #45
The pH scale is logarithmic because each unit represents a ______ -fold change in [H+].
A.
10
B.
2
C.
3
D.
7
Question #46
A compound that donates hydrogen ions in a solution is called a(n) ________.
A.
bases
B.
buffers
C.
acids
Question #47
A compound that accepts hydrogen ions in a solution is called a(n) _______.
A.
buffers
B.
acids
C.
bases
Question #48
A substance that minimizes changes in the pH of a solution is called a(n)_______.
A.
acids
B.
buffers
C.
bases
Question #49
A hydrolysis or decomposition reaction occurs when when cells break large molecules into smaller molecules or atoms. Which of the following best describes these reactions?
A.
Catabolic, Exergonic, And Require Water
B.
Anabolic, Exergonic, And Produce Water
C.
Anabolic, Endergonic, And Produce Water
D.
Catabolic, Exergonic, And Produce Water
E.
Catabolic, Endergonic, And Require Water
F.
Anabolic, Endergonic, And Require Water
Question #50
Match the functional group with its correct name: -NH2
A.
Amino
B.
Carbonyl
C.
Hydroxyl
D.
Carboxyl
Question #51
Match the functional group with its correct name: =CO
A.
Hydroxyl
B.
Carboxyl
C.
Amino
D.
Carbonyl
Question #52
Match the functional group with its correct name: -COOH
A.
Carboxyl
B.
Amino
C.
Carbonyl
D.
Hydroxyl
Question #53
Match the functional group with its correct name: -OH
A.
Amino
B.
Carbonyl
C.
Carboxyl
D.
Hydroxyl
Question #54
Match the biological molecules with its building blocks: Amino acids
A.
Triglycerides
B.
Steriods
C.
Glycogen
D.
Proteins
Question #55
Match the biological molecules with its building blocks: Thymine, adenine, guanine & cytosine
A.
Lactose
B.
DNA
C.
Sucrose
D.
RNA
Question #56
Match the biological molecules with its building blocks: Fatty acids
A.
Sucrose
B.
Glycogen
C.
Lactose
D.
Triglycerides
Question #57
Match the biological molecules with its building blocks: Glucose
A.
Proteins
B.
Steriods
C.
Triglycerides
D.
Glycogen
Question #58
Match the biological molecules with its building blocks: Glucose & galactose
A.
Lactose
B.
Steriods
C.
Triglycerides
D.
Glycogen
Question #59
Match the biological molecules with its building blocks: Glucose & fructose
A.
Sucrose
B.
Proteins
C.
Triglycerides
D.
Steriods
Question #60
Match the biological molecules with its building blocks: Uracil, adenine, guanine, & cytosine
A.
Sucrose
B.
RNA
C.
DNA
D.
Lactose
Question #61
Match the lipids with its characteristics: Phospholipid
A.
Contain four fatty acids
B.
Amphipathic molecule
C.
Partially hydrogenated
D.
Have one or more double bonds between Carbon atoms in fatty acid chains
Question #62
Match the lipids with its characteristics: Steroid
A.
Contain a single fatty acids
B.
Cholesterol
C.
Amphipathic molecule
D.
Contain four fatty acids
Question #63
Match the lipids with its characteristics: Saturated fat
A.
Typically solid at room temperature
B.
Cholesterol
C.
Partially hydrogenated
D.
Amphipathic molecule
Question #64
Match the lipids with its characteristics: Unsaturated fat
A.
Contain four fatty acids
B.
Contain three fatty acids
C.
Typically solid at room temperature
D.
Have one or more double bonds between Carbon atoms in fatty acid chains
Question #65
Match the lipids with its characteristics: Trans fats
A.
Amphipathic molecule
B.
Cholesterol
C.
Partially hydrogenated
D.
Typically solid at room temperature
Question #66
Match the lipids with its characteristics: Waxes
A.
Have one or more double bonds between Carbon atoms in fatty acid chains
B.
Contain three fatty acids
C.
Partially hydrogenated
D.
Contain a single fatty acids
Question #67
Match the lipids with its characteristics: Triglyceride
A.
Contain a single fatty acids
B.
Contain four fatty acids
C.
Contain three fatty acids
D.
Cholesterol
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Microbiology 020 - General Microbiology ] course for $25 USD.
Existing Quiz Clients Login here