BSC 2010-Steven Marks Exam 1 Questions
and Correct Answers
Question 1
Which of the following characteristics is responsible for the complexity and variety of
organic molecules?
Correct Answer
the chemical versatility of carbon atoms
Question 2
Hydrogen bonds are responsible for what characteristics of water
Correct Answer
Cohesión, moderation of temperature, lower density as a solid, properties as a
solvent
Question 3
atomic number
Correct Answer
number of protons
Question 4
element
Correct Answer
a substance that cannot be separated or broken down into simpler substances by
chemical means
Page 1 of 146
,Question 5
The characteristic that all lipids have in common is __________.
Correct Answer
none of them dissolves in water
Question 6
methyl
Correct Answer
-CH3
-reduces polarity
-affects the expression of genes
Question 7
Variation in carbon chains is an important source of molecular complexity. How can
carbon skeletons vary?
Correct Answer
Carbon skeletons can vary in length, exhibit different branching structures, contain
double bonds at different positions, and contain rings of carbon atoms
Question 8
A functional protein consists of
Correct Answer
one or more polypeptides precisely twisted, folded, and coiled into a unique shape
Question 9
A covalent bond is likely to be polar under which of the following conditions?
Correct Answer
one of the atoms sharing electrons is more electronegative than the other atom
Page 2 of 146
,Question 10
_________structure is the result of two or more protein subunits assembling to form a
larger, biologically active protein complex.
Correct Answer
quaternary
Question 11
cis-trans isomers
Correct Answer
carbons have covalent bonds to the same atoms, but these atoms differ in their
spatial arrangements due to the inflexibility of double bonds
Question 12
What is the solvent of life
Correct Answer
Water
Question 13
The ___________ and ______________ of functional groups give each molecule its unique
properties
Correct Answer
number; arrangement
Question 14
Basic
Correct Answer
Decreased H+ concentration, increased OH-concentration
Page 3 of 146
, Question 15
Carbohydrate polymers are made up of ___________ monomers.
Correct Answer
simple sugar
Question 16
dalton
Correct Answer
A measure of mass for atoms and subatomic particles; the same as the atomic mass
unit, or amu.
Question 17
A compound contains hydroxyl groups as its predominant functional group. Which of
the following properties of the molecule can be predicted with the information
provided?
Correct Answer
It should dissolve in water
Question 18
Water is the basis of
Correct Answer
Acids and bases
Question 19
How many electrons can each orbital hold?
Correct Answer
2 in the first, 8 in the rest
Page 4 of 146
and Correct Answers
Question 1
Which of the following characteristics is responsible for the complexity and variety of
organic molecules?
Correct Answer
the chemical versatility of carbon atoms
Question 2
Hydrogen bonds are responsible for what characteristics of water
Correct Answer
Cohesión, moderation of temperature, lower density as a solid, properties as a
solvent
Question 3
atomic number
Correct Answer
number of protons
Question 4
element
Correct Answer
a substance that cannot be separated or broken down into simpler substances by
chemical means
Page 1 of 146
,Question 5
The characteristic that all lipids have in common is __________.
Correct Answer
none of them dissolves in water
Question 6
methyl
Correct Answer
-CH3
-reduces polarity
-affects the expression of genes
Question 7
Variation in carbon chains is an important source of molecular complexity. How can
carbon skeletons vary?
Correct Answer
Carbon skeletons can vary in length, exhibit different branching structures, contain
double bonds at different positions, and contain rings of carbon atoms
Question 8
A functional protein consists of
Correct Answer
one or more polypeptides precisely twisted, folded, and coiled into a unique shape
Question 9
A covalent bond is likely to be polar under which of the following conditions?
Correct Answer
one of the atoms sharing electrons is more electronegative than the other atom
Page 2 of 146
,Question 10
_________structure is the result of two or more protein subunits assembling to form a
larger, biologically active protein complex.
Correct Answer
quaternary
Question 11
cis-trans isomers
Correct Answer
carbons have covalent bonds to the same atoms, but these atoms differ in their
spatial arrangements due to the inflexibility of double bonds
Question 12
What is the solvent of life
Correct Answer
Water
Question 13
The ___________ and ______________ of functional groups give each molecule its unique
properties
Correct Answer
number; arrangement
Question 14
Basic
Correct Answer
Decreased H+ concentration, increased OH-concentration
Page 3 of 146
, Question 15
Carbohydrate polymers are made up of ___________ monomers.
Correct Answer
simple sugar
Question 16
dalton
Correct Answer
A measure of mass for atoms and subatomic particles; the same as the atomic mass
unit, or amu.
Question 17
A compound contains hydroxyl groups as its predominant functional group. Which of
the following properties of the molecule can be predicted with the information
provided?
Correct Answer
It should dissolve in water
Question 18
Water is the basis of
Correct Answer
Acids and bases
Question 19
How many electrons can each orbital hold?
Correct Answer
2 in the first, 8 in the rest
Page 4 of 146
