Exam 4 Review Questions Flashcards
The primary level of protein organization involves
A. The identity of the carbohydrates that modify proteins
B. The amount of carbohydrates present in each polypeptide chain
C. The level of fat modifications in proteins
D. The sequence and identity of the amino acids that make up the protein
D. The sequence and identity of the amino acids that make up the protein
Amino acid side chains are
A. Usually hydrophobic
B. Usually charged
C. Distinguish one amino acid from another
D. Usually protonated
C. Distinguish one amino acid from another
Specific pairs of amino acid chains can
A. Form van der Waals interactions
B. Form hydrophobic interactions
C. Form electrostatic interactions
D. A, b, and c are correct
D. A, b, and c are correct
Beta sheets and alpha helices in proteins
A. Present their side chains to the exterior of the structure
B. Generally restrict the side chains to the external parts of the structure
C. Vary in the ability to present side chains to the exterior of the surface
D. Have nothing to do with amino acid side chains
A. Present their side chains to the exterior of the structure
Hemoglobin has a tetrameric quaternary structure. This means that hemoglobin is a complex of four
A. Lipids
B. Amino acids
C. Proteins
D. Carbohydrates
C. Proteins
Proteins usually contain
A. A mix of alpha helices and beta sheets
B. Either beta sheets or alpha helices
C. Neither beta sheets or alpha helices
D. No secondary structure other than alpha helices and beta sheets
A. A mix of alpha helices and beta sheets
Vitamin C is mostly hydrophilic. Mid over-consumption of vitamin C is
A. Not a serious issue. Because excess vitamin C will accumulate in fat tissue
B. Not usually a serious issue because excess vitamin C will be secreted in the urine
C. A health risk because excess vitamin C will accumulate in fat tissues
D. A health risk because excess vitamin C will accumulate in the urinary tract
B. Not usually a serious issue because excess vitaminC will be secreted in the urine
The effect of the mutation when there is fewer van de Waal reactions is that the binding affinity is
A. Unchanged
B. Reduced
C. Increased
D. A, b, and c are all possible
B. Reduced
Oxycodone is highly addictive because
A. It contains a benzene ring
B. It shares a pharmacophore with morphine
C. It can makes hydrogen bonds
D. It contains three rings adjacent to each other
B. It shares a pharmacophore with morphine
Naloxone (Narcan) is a rescue drug for opioid overdose because
A. It is a competitive inhibitor of morphine
B. It binds opioid receptors
C. It inhibits oxycodone-receptor complex formation
D. A, b, and c are correct
D. A, b, and c are correct
The functional group in the compound NH2 is an
A. Amide
B. Amine
C. Alcohol
D. Ester
B. Amine
The functional group in the compound OH is an
A. Amide
B. Amine
C. Alcohol
D. Ester
C. Alcohol
