Determine the pKa for the following solution of acid-containing [0.035] A- and
[0.1] HA. The pH of the solution is 6.00
4.10
4.30
5.42
6.46
6.64 - ANSWER 6.46
A biochemical reaction will proceed in the direction as written if:
ΔG < 0.
ΔH < 0.
ΔG > 0.
ΔG = zero.
ΔH > 0. - ANSWER ΔG < 0.
The following molecule is an example of which class of
compounds?CH3CH2CH2COOH
Hydrocarbon
Acid
Alcohol
Aldehyde
Ketone - ANSWER Acid
A thermodynamically unfavorable reaction can become favorable when coupled
to a highly endergonic reaction.
true
false - ANSWER false
Determine the pH of the following aqueous solution that contains a [OH-] of 2.5
X 10-4.
9.7
10.4
, 10.8
8.4
7.4 - ANSWER 10.4
Which of the following is not an example of a macromolecule?
Nucleic acid
Protein
Polysaccharide
Enzyme
Amino acid - ANSWER Nucleic Acid and Amino ACID
The macromolecules that serve in the storage and transmission of genetic
information are:
carbohydrates.
lipids.
membranes.
nucleic acids.
proteins. - ANSWER nucleic acids.
Which of the following statements is not true of the lysosome?
It functions in intercellular digestion
Both ER and Golgi apparatus are involved in its formation
It is capable of degrading most biomolecules
It is involved in the packaging and secretion of cell products
It is involved in pathological conditions such as gout and rheumatoid arthritis -
ANSWER It is involved in the packaging and secretion of cell products
The chemical properties of organic molecules are determined by specific
arrangements of atoms called _____________.
Structure
Bonds
Functional groups
Radicals
Molecules - ANSWER Functional groups
Metabolism is best defined as the _________.
Reactions of living cells
Reactions that synthesize large molecules in living cells
[0.1] HA. The pH of the solution is 6.00
4.10
4.30
5.42
6.46
6.64 - ANSWER 6.46
A biochemical reaction will proceed in the direction as written if:
ΔG < 0.
ΔH < 0.
ΔG > 0.
ΔG = zero.
ΔH > 0. - ANSWER ΔG < 0.
The following molecule is an example of which class of
compounds?CH3CH2CH2COOH
Hydrocarbon
Acid
Alcohol
Aldehyde
Ketone - ANSWER Acid
A thermodynamically unfavorable reaction can become favorable when coupled
to a highly endergonic reaction.
true
false - ANSWER false
Determine the pH of the following aqueous solution that contains a [OH-] of 2.5
X 10-4.
9.7
10.4
, 10.8
8.4
7.4 - ANSWER 10.4
Which of the following is not an example of a macromolecule?
Nucleic acid
Protein
Polysaccharide
Enzyme
Amino acid - ANSWER Nucleic Acid and Amino ACID
The macromolecules that serve in the storage and transmission of genetic
information are:
carbohydrates.
lipids.
membranes.
nucleic acids.
proteins. - ANSWER nucleic acids.
Which of the following statements is not true of the lysosome?
It functions in intercellular digestion
Both ER and Golgi apparatus are involved in its formation
It is capable of degrading most biomolecules
It is involved in the packaging and secretion of cell products
It is involved in pathological conditions such as gout and rheumatoid arthritis -
ANSWER It is involved in the packaging and secretion of cell products
The chemical properties of organic molecules are determined by specific
arrangements of atoms called _____________.
Structure
Bonds
Functional groups
Radicals
Molecules - ANSWER Functional groups
Metabolism is best defined as the _________.
Reactions of living cells
Reactions that synthesize large molecules in living cells
