A simple pathway has two steps: A B C
Go' for A B = +11.4 kJ/mol, and Keq is 10-2
Go' for B C = -22.8 kJ/mol, and Keq is 104
a. What is the standard free energy change for
conversion of A to C? _kJ/mol
Transcription and RNA Processing Quiz
Which of the following types of RNA is most likely to contain introns?
A novel gene A was discovered on the opposite noncoding strand of an already wellcharacterized gene B.
Overview of Energy Metabolism Quiz
Insulin is rapidly released after a meal to promote glucose entry into tissues, as well as increased
synthesis of triglycerides, proteins, and glycogen. Which of the following types of tissues is
insensitive to the effec
Purine and Pyrimidine Metabolism Quiz
An infant is suffering from anemia with enlarged red blood cells. His urine is examined and found
to exhibit increased levels of orotic acid. To distinguish a defect in pyrimidine synthesis versus a
defect in the urea
DNA Replication and Repair Quiz
During DNA replication in prokaryotes, DNA polymerase I is required for removing the RNA
primers and replacing it with DNA, particularly on the lagging strand where multiple priming
events must occur during the course of re
Recombinant DNA Quiz
Which of the following genes could be amplified from a human adult pancreas cDNA library, but
not from a liver cDNA library?
Elongation factor eEF-2
Protein kinase C
Which of t
Lipid Synthesis and Storage Quiz
Similar to the use of low-dose aspirin, the intake of omega-3 fatty acids may reduce the risk of
cardiovascular disease by blocking the production of which of the following molecules?
Citric Acid Cycle/Oxidative Phosphorylation Quiz
Which of the following is true of the citric acid cycle, but not of glycolysis?
A. Produces CO2
Provides precursors for amino acid synthesis
Rate-limiting enzymes under allosteric
Glycogen, Gluconeogenesis, and the Hexose Monophos
In order for one glucose molecule to become incorporated into glycogen, activated phosphates
from which type(s) of nucleotide is (are) required?
A. 1 purine nucleotide
B. 1 pyrimidine nucleotide
C. 1 puri
A bodybuilder who consumes a large quantity of raw eggs is likely to experience decreased
activity in which of the following enzymatic reactions?
A. Oxaloacetate citrate
C. Pyruvate acetyl CoA
Techniques of Genetic Analysis Quiz
Two-dimensional gel electrophoresis allows the separation of molecules by both their
molecular weights and native charge. Which of the following techniques may be applied
after a two-dimensional gel electrophoresis?
Performance-enhancing steroid hormones that are banned from athletic competitions most likely
act by binding proteins that contain which of the following domain structures?
Protein kinase domains
Amino Acid Metabolism Quiz
Amino acid + -ketoglutarate -keto acid + glutamate. What type of enzymes carry out the
biochemical reaction shown above?
Amino acid dehydrogenase
Genetic Regulation Quiz
Lactose intolerance is a condition resulting from a lack of lactase in the gastrointestinal tract. As a
result, bacteria from the intestinal flora that can consume lactose proliferate and increase CO 2
production, resulting in incr
Lipid Mobilization and Catabolism Quiz
Which of the following common vitamins can be prescribed in high doses as an antilipidemic
A. Folic acid
B. Vitamin B1
C. Vitamin B3
E. Vitamin C
The correct answer is C. Vitamin B3 (niacin
Glycolysis and Pyruvate Dehydrogenase Quiz
An artificial cell line that is deficient in aldolase is generated for research studies. Aldolase B
activity, however, remains intact. Monosaccharides generated from which of the following
enzymes would be requir
Nucleic Acid Structure and Organization Quiz
The following is the structure of a chemotherapeutic reagent:
This compound would be classified as an analog of which of the following types of molecules?
Amino Acids, Proteins, and Enzymes Quiz
An infant is brought to the attention of a pediatrician because of feeding problems and general
psychomotor retardation. The parents also noted a strange smell of the child's urine resembling
that of maple syrup. Me
Genetic Code, Mutations and Translations Quiz
A spontaneous mutation occurs such that a single base pair is inserted into the middle of the
coding sequence of a gene. This mutation may be which of the following?