BIO100 quiz 2
BIO100
Biology Concepts
Lab 2: Biochemical Analysis
Dec 12 2014 |
Logged in as : MAV2020753
Introduction
Assessment Feedback
Thank you for your participation in this assignment. Your work has been submitted to your instructor.
Total score: 25 out of 100, 25%
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Question
1 of 20
The subatomic particles that play the greatest role in cellular chemical reactions are
electrons.
protons.
neutrons.
isotopes.
0 out of 5
The correct answer is: electrons. Question
2 of 20
The structural unit that retains the properties of an element is the
molecule.
atom.
cell.
electron.
5 out of 5
Correct!!
Question
3 of 20
Which of the following are found in the nucleus of an atom?
Protons
Neutrons
Electrons
A and B
0 out of 5
The correct answer is:
A and B
Question
4 of 20
The component of an atom or molecule that is most important in determining its chemical properties is the
isotope.
neutron.
electron.
proton.
0 out of 5
The correct answer is: electron. Question
5 of 20
What is the maximum number of electrons the innermost shell can hold?
1
2
4
8
0 out of 5
The correct answer is:
Two
Question
6 of 20
An atom becomes an ion when
it gains or loses electrons.
it gains or loses protons.
it shares hydrogen atoms.
it gains or loses neutrons.
0 out of 5
The correct answer is: it gains or loses electrons.
Question
7 of 20
The symbol 3CO2 represents
one atom of oxygen and three atoms of carbon.
three atoms of carbon and one molecule of oxygen.
three molecules of carbon dioxide.
one atom of carbon and three atoms of oxygen.
0 out of 5
The correct answer is: three molecules of carbon dioxide.
Question
8 of 20
In water, hydrogen bonding occurs between the hydrogen and
an oxygen atom in the same molecule.
an oxygen atom in a different molecule.
a hydrogen atom in a different molecule.
a hydrogen atom in the same molecule.
5 out of 5
Correct!!
Question
9 of 20
Covalent bonds form when one atom _________ its
Biology Concepts
Lab 2: Biochemical Analysis
Dec 12 2014 |
Logged in as : MAV2020753
Introduction
Assessment Feedback
Thank you for your participation in this assignment. Your work has been submitted to your instructor.
Total score: 25 out of 100, 25%
Question Feedback
Question
1 of 20
The subatomic particles that play the greatest role in cellular chemical reactions are
electrons.
protons.
neutrons.
isotopes.
0 out of 5
The correct answer is: electrons. Question
2 of 20
The structural unit that retains the properties of an element is the
molecule.
atom.
cell.
electron.
5 out of 5
Correct!!
Question
3 of 20
Which of the following are found in the nucleus of an atom?
Protons
Neutrons
Electrons
A and B
0 out of 5
The correct answer is:
A and B
Question
4 of 20
The component of an atom or molecule that is most important in determining its chemical properties is the
isotope.
neutron.
electron.
proton.
0 out of 5
The correct answer is: electron. Question
5 of 20
What is the maximum number of electrons the innermost shell can hold?
1
2
4
8
0 out of 5
The correct answer is:
Two
Question
6 of 20
An atom becomes an ion when
it gains or loses electrons.
it gains or loses protons.
it shares hydrogen atoms.
it gains or loses neutrons.
0 out of 5
The correct answer is: it gains or loses electrons.
Question
7 of 20
The symbol 3CO2 represents
one atom of oxygen and three atoms of carbon.
three atoms of carbon and one molecule of oxygen.
three molecules of carbon dioxide.
one atom of carbon and three atoms of oxygen.
0 out of 5
The correct answer is: three molecules of carbon dioxide.
Question
8 of 20
In water, hydrogen bonding occurs between the hydrogen and
an oxygen atom in the same molecule.
an oxygen atom in a different molecule.
a hydrogen atom in a different molecule.
a hydrogen atom in the same molecule.
5 out of 5
Correct!!
Question
9 of 20
Covalent bonds form when one atom _________ its