Answer Options:
Glycogenolysis is stimulated
Gluconeogenesis is inhibited
Adenylate cyclase is activated
Both A and B are correct
All of the above are correct
Answer: Both A and B are correct
Question: Which of the following yields N-acetyl-D-glucosamine on hydrolysis.
Answer Options:
Cellulose
Heparin
Chitin
Amylopectin
Amylose
Answer: Chitin
Question: Where should you dispose of capillary tubes and pipettes?
Answer: Sharps container
Question: The following amino acid would stabilize the tertiary level of protein folding through which interaction?
Answer Options:
disulfide bond
peptide bond
hydrogen bond
ionic bond
Answer: disulfide bond
Question: How should you dispose of excess organic solvents?
Answer: Organic solvents should be disposed of properly in the appropriate waste container. There is one container for organic solvents and another for halogenated organic solvents. Solid/Liquid waste containers.
Question: Which of the following weak interactions would require the least amount of energy to disrupt?
Answer Options:
hydrogen bonds
ionic bonds
van der Waals interactions
disulfide bonds
Answer: van der Waals interactions
Question: Let’s consider that ethyl acetate is the ideal solvent for this TLC experiment. What might have happened to the spots if you had used [butyl] methyl ether as the eluent instead of ethyl acetate. Spots remain towards bottom of TLC plate because:
Answer: [Butyl/methyl ether] is less polar, cannot overcome attractions of sample to adsorbent.
Question: The accumulation of AGEs is linked to which of the following diseases?
Answer Options:
Atherosclerosis
Arthritis
Diabetes
Both A and B are correct
Answer: All of the above are correct
Question: Reaction of an amino acid with Cl of a sylic acid produces which of the following linkages?
Answer Options:
Ester
Amide
Glycosidic
Enzyme
Schiff base
Answer: Amide
Question: In column chromatography (microscale), after loading it with solvent and adsorbent and prior to loading the sample, what level should you allow the solvent to drop to?
Answer: Top of the column packing.
What features will appear in the column if you allow the column to run dry?
Correct Answer:
Formation of air bubbles and channels.
What is the consequence if you do allow the column to run dry?
Correct Answer:
Poor separation.
Question: What was the name of the amino acid that the author was investigating in the DiNardo paper?
Answer Options:
Leucine
Proline
Cysteine
Alanine
Aspartate
Answer: Cysteine
Question: An enzyme family called the ______ catalyzes the phosphorylation of hexoses in the body.
Answer Options:
Hexokinases
Phosphohexoses
Hexoskinases
Glucohexokinases
Phosphohexokinases
Answer: Hexokinases
Question: What should you always wear over your eyes while in the lab even if you wear glasses?
Answer: Lab Safety Goggles
Question: Enzymes are biological catalysts that enhance the rate of a reaction by:
Answer Options:
decreasing the activation energy
decreasing the amount of free energy released
increasing the activation energy
increasing the amount of free energy released
increasing the energy of the transition state
Answer: decreasing the activation energy
Question: How many stereoisomers are possible for an aldohexose?
Answer Options:
4
8
12
16
32
Answer: 16
Question: Are contact lenses ever permitted in the Chemistry Laboratory at Rutgers?
Answer: Contact lenses are not permitted in the chemistry laboratory at Rutgers
Question: What is the identity of your unknown from Anacin, Excedrin, Tylenol that you spotted on your TLC plate in lab? To figure out spots from the Reference solution, look at the data section with the diagram of the spots revealed in test spot number (Question 11.3).
Answer: The identity of my unknown was Acetaminophen.
Question: What makes the discovery of Mayor and Queloz (51 Peg b) so important?
Answer Options:
It was discovered using a small handheld telescope mounted to a tripod.
It was the first planet discovered without the benefit of the selection effect.
It is the closest exoplanet.
This was the first Jupiter exoplanet discovered around a Sun-like star.
Answer: This was the first Jupiter exoplanet discovered around a Sun-like star.
Question: Why did the mutation of the D309N ruin the effect of human aromatase expressed in E. Coli?
Answer Options:
D is polar and N is nonpolar.
D can be titrated and N is not titratable.
D is solute and N is not.
D cannot be titrated and N can be titrated.
None of the above.
Answer: D can be titrated and N is not titratable.
Question: What heat source should you use to heat flammable organic solvents?
Answer: Electrically heated sand bath
Question: The binding of insulin to receptors on the surface of muscle cells stimulates which of the following processes?
Answer Options:
Glycogenolysis
Glycogenesis
Release of ATP
Formation of cyclic AMP
Release of glycogen
Answer: Glycogenesis