Rutgers Intro Biochem 301 -Murphy
Module 1 Exam-Graded A
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 - ANS-6.46
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 - ANS-10.4
Which of the following is not an example of a macromolecule?
Nucleic acid
Protein
Polysaccharide
Enzyme
Amino acid - ANS-Nucleic Acid and Amino ACID
The macromolecules that serve in the storage and transmission of genetic information
are:
carbohydrates.
lipids.
membranes.
nucleic acids.
proteins. - ANS-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 - ANS-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 - ANS-Functional groups
Metabolism is best defined as the _________.
Reactions of living cells
Reactions that synthesize large molecules in living cells
Reactions that degrade molecules in living cells
Conversion of food molecules to energy
Reactions that synthesize and/or degrade molecules in living cells - ANS-Reactions that
synthesize and/or degrade molecules in living cells
Which one of the following has the cellular components arranged in order of increasing
size?
Amino acid < protein < mitochondrion < ribosome
Amino acid < protein < ribosome < mitochondrion
Amino acid < ribosome < protein < mitochondrion
Protein < amino acid < mitochondrion < ribosome
Protein < ribosome < mitochondrion < amino acid - ANS-Amino acid < protein <
ribosome < mitochondrion
Determine the ratio of conjugate base over acid, [A-]/[HA], with a pKa of 6.0 in a solution
of pH of 5.5.
3.16
0.316
31.6
0.0316
316.0 - ANS-0.316
The four most abundant chemical elements in living systems are:
hydrogen, carbon, nitrogen and oxygen.
sodium, potassium, nitrogen and sulfur.
hydrogen, oxygen, sulfur and phosphorus.
carbon, nitrogen, oxygen and potassium.
sodium, potassium, carbon and oxygen. - ANS-hydrogen, carbon, nitrogen and oxygen.
Determine the pKa for the following solution of acid containing [0.022] A- and [0.1] HA.
The pH of the solution is 5.24
4.10
Module 1 Exam-Graded A
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 - ANS-6.46
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 - ANS-10.4
Which of the following is not an example of a macromolecule?
Nucleic acid
Protein
Polysaccharide
Enzyme
Amino acid - ANS-Nucleic Acid and Amino ACID
The macromolecules that serve in the storage and transmission of genetic information
are:
carbohydrates.
lipids.
membranes.
nucleic acids.
proteins. - ANS-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 - ANS-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 - ANS-Functional groups
Metabolism is best defined as the _________.
Reactions of living cells
Reactions that synthesize large molecules in living cells
Reactions that degrade molecules in living cells
Conversion of food molecules to energy
Reactions that synthesize and/or degrade molecules in living cells - ANS-Reactions that
synthesize and/or degrade molecules in living cells
Which one of the following has the cellular components arranged in order of increasing
size?
Amino acid < protein < mitochondrion < ribosome
Amino acid < protein < ribosome < mitochondrion
Amino acid < ribosome < protein < mitochondrion
Protein < amino acid < mitochondrion < ribosome
Protein < ribosome < mitochondrion < amino acid - ANS-Amino acid < protein <
ribosome < mitochondrion
Determine the ratio of conjugate base over acid, [A-]/[HA], with a pKa of 6.0 in a solution
of pH of 5.5.
3.16
0.316
31.6
0.0316
316.0 - ANS-0.316
The four most abundant chemical elements in living systems are:
hydrogen, carbon, nitrogen and oxygen.
sodium, potassium, nitrogen and sulfur.
hydrogen, oxygen, sulfur and phosphorus.
carbon, nitrogen, oxygen and potassium.
sodium, potassium, carbon and oxygen. - ANS-hydrogen, carbon, nitrogen and oxygen.
Determine the pKa for the following solution of acid containing [0.022] A- and [0.1] HA.
The pH of the solution is 5.24
4.10
