MURPHY 301 EXAM INTRODUCTION TO
BIOCHEMISTRY 200 QUESTIONS AND CORRECT
ANSWERS GRADED A+ VERIFIED ANSWERS
JUST RELEASED
18) When an individual breathes very rapidly, large amounts of carbon dioxide are
exhaled. What effect does this have on blood pH?
A) Acidosis
B) Alkalosis
C)No change
D) First acidosis then rebounding alkalosis
E) First alkalosis then rebounding acidosis - CORRECT ANSWER: Alkalosis
A biochemical reaction will proceed in the direction as written if:
A) △G = zero.
B) △G > 0.
C) △G < 0.
D) △H > 0.
E) △H < 0. - CORRECT ANSWER: △G < 0.
A constant source of _______ is required for maintenance of a cell's ordered state.
A) Heat
B) Oxygen
C) Energy
,D) Stimulus
E) Water - CORRECT ANSWER: Energy
A hydrogen bond is best defined as:
A) A strong chemical bond between hydrogen and another element
B) A weak chemical bond between hydrogen and another element
C) A relatively strong electrostatic bond between hydrogen and oxygen or nitrogen
D) A weak electrostatic bond between hydrogen and oxygen or nitrogen
E) A bond between two hydrogens - CORRECT ANSWER: A relatively strong
electrostatic bond between hydrogen and oxygen or nitrogen
A reaction at equilibrium can be driven in one direction or the other by changing the
________ of reactants or products. - CORRECT ANSWER: Concentration
A reaction at its lowest energy state for the system and with equal rates in the forward
and reverse directions is said to be at ________. - CORRECT ANSWER: Equilibrium
A reaction with a large negative free energy of hydrolysis can be coupled to the
synthesis of ATP from ADP and Pi
True or False?. - CORRECT ANSWER: True
A thermodynamically unfavorable reaction can become favorable if the mass action ratio
is ________ than the equilibrium mass action ratio. - CORRECT ANSWER: Less
A thermodynamically unfavorable reaction can become favorable when coupled to a
highly endergonic reaction.
,True or False? - CORRECT ANSWER: FALSE
Acid hydrolases are found in ___________.
A) Ribosomes
B) Lysosomes
C) Golgi Apparatus
D) Dictyosomes
E) Smooth ER - CORRECT ANSWER: Lysosomes
All amino acids are composed what three things attached to it? - CORRECT ANSWER:
central α-carbon that has an amine group
a carboxylic acid group
and an R group
All amino acids except _______ are chiral with the two isomer forms known as the L-
isomer and the D-isomer. - CORRECT ANSWER: glycine
All amino acids have a chiral α-carbon EXCEPT ________. - CORRECT ANSWER:
glycine
All of the following classes of compounds are lipids except _______.
A) fats
B) sterols
C) fatty acids
D) phosphoglycerides
E) nucleotides - CORRECT ANSWER: Nucleotides
, Amphipathic molecules are not able to interact via van der Waals forces.
True or False? - CORRECT ANSWER: False
An amphipathic molecule provides the foundation for biological membranes because
they have both _____ and _______ functional groups - CORRECT ANSWER:
hydrophobic, hydrophilic
An organisms entire set of DNA is called
A) Genome
B) Genetic sequence
C) Polynucleotide sequence
D) Gene
E) Inheritance - CORRECT ANSWER: Genome
Analysis of the RNA of prokaryotes reveals that there are ______ distinct types of
prokaryotes.
A) One
B) Two
C) Three
D) Four
E) Five - CORRECT ANSWER: Two
Biochemistry is defined as
BIOCHEMISTRY 200 QUESTIONS AND CORRECT
ANSWERS GRADED A+ VERIFIED ANSWERS
JUST RELEASED
18) When an individual breathes very rapidly, large amounts of carbon dioxide are
exhaled. What effect does this have on blood pH?
A) Acidosis
B) Alkalosis
C)No change
D) First acidosis then rebounding alkalosis
E) First alkalosis then rebounding acidosis - CORRECT ANSWER: Alkalosis
A biochemical reaction will proceed in the direction as written if:
A) △G = zero.
B) △G > 0.
C) △G < 0.
D) △H > 0.
E) △H < 0. - CORRECT ANSWER: △G < 0.
A constant source of _______ is required for maintenance of a cell's ordered state.
A) Heat
B) Oxygen
C) Energy
,D) Stimulus
E) Water - CORRECT ANSWER: Energy
A hydrogen bond is best defined as:
A) A strong chemical bond between hydrogen and another element
B) A weak chemical bond between hydrogen and another element
C) A relatively strong electrostatic bond between hydrogen and oxygen or nitrogen
D) A weak electrostatic bond between hydrogen and oxygen or nitrogen
E) A bond between two hydrogens - CORRECT ANSWER: A relatively strong
electrostatic bond between hydrogen and oxygen or nitrogen
A reaction at equilibrium can be driven in one direction or the other by changing the
________ of reactants or products. - CORRECT ANSWER: Concentration
A reaction at its lowest energy state for the system and with equal rates in the forward
and reverse directions is said to be at ________. - CORRECT ANSWER: Equilibrium
A reaction with a large negative free energy of hydrolysis can be coupled to the
synthesis of ATP from ADP and Pi
True or False?. - CORRECT ANSWER: True
A thermodynamically unfavorable reaction can become favorable if the mass action ratio
is ________ than the equilibrium mass action ratio. - CORRECT ANSWER: Less
A thermodynamically unfavorable reaction can become favorable when coupled to a
highly endergonic reaction.
,True or False? - CORRECT ANSWER: FALSE
Acid hydrolases are found in ___________.
A) Ribosomes
B) Lysosomes
C) Golgi Apparatus
D) Dictyosomes
E) Smooth ER - CORRECT ANSWER: Lysosomes
All amino acids are composed what three things attached to it? - CORRECT ANSWER:
central α-carbon that has an amine group
a carboxylic acid group
and an R group
All amino acids except _______ are chiral with the two isomer forms known as the L-
isomer and the D-isomer. - CORRECT ANSWER: glycine
All amino acids have a chiral α-carbon EXCEPT ________. - CORRECT ANSWER:
glycine
All of the following classes of compounds are lipids except _______.
A) fats
B) sterols
C) fatty acids
D) phosphoglycerides
E) nucleotides - CORRECT ANSWER: Nucleotides
, Amphipathic molecules are not able to interact via van der Waals forces.
True or False? - CORRECT ANSWER: False
An amphipathic molecule provides the foundation for biological membranes because
they have both _____ and _______ functional groups - CORRECT ANSWER:
hydrophobic, hydrophilic
An organisms entire set of DNA is called
A) Genome
B) Genetic sequence
C) Polynucleotide sequence
D) Gene
E) Inheritance - CORRECT ANSWER: Genome
Analysis of the RNA of prokaryotes reveals that there are ______ distinct types of
prokaryotes.
A) One
B) Two
C) Three
D) Four
E) Five - CORRECT ANSWER: Two
Biochemistry is defined as
