Question

demic of sleeping sickness. Survivors of 19)A movie called Awakenings dramatized the 1918 epi with a drug called dopa. This the disease were left with paralysis and the patients were treated drug has 2 forms: one form relieved example of the paralysis and while the other had no effect. This is an a The fact that each enantiomer can have a different effect in the human body b. When working on developing medications, the researcher needs to be aware of subtle variations in molecules c. Form and function are closely related d. All of the above apply e. None of the above apply as one would be a placebo and the other is the trial medication is FALSE? Which of the following statements concerning hydrogen bonds a. They are strong attractive forces between hydroge 20) n atoms and negatively charged atoms b. They can form between neighboring molecules c. They are important forces for tertiary structure of proteins d. They are responsible for many of the unique properties of water 21)A group of molecular biologists is trying to synthesize a new artificial compound to mimic the effects of a known hormone involved in metabolism. They have turned to you for advice. Which of the following compounds is most likely to mimic the effects of the hormone? a. a compound with the same number of carbon atoms as the hormone b. a compound with the same molecular mass (measured in daltons) as the hormone c. a compound with the same three-dimensional form as part of the hormone d. a compound with the same number of orbital electrons as the hormone e. a compound with the same number of hydrogen and nitrogen atoms as the hormone 22)Scientists and researchers are battling a new group of diseases called prions. As you know already, prion diseases are ones caused by misshapen proteins. In the frantic search for a cure" to these diseases, which the following considerations must be taken into account when developing medications to treat prion diseases? a. Proteins are only a small component of cells and organisms, therefore medications can be made to target proteins in general b. Proteins secondary structure is dependent on weak forces like hydrogen bonds, Van der Waals forces and disulfide bonds, which could be considered a weak point of attack. They have a high degree of specificity in regards to amino acid arrangement and their overall function is dependent upon this factor. Changing the amino acid sequence may result in destruction of the protein. c. d. Since proteins are hydrophobic, hydrolysis reactions can be used to break the peptide bonds between the carboxyl and R group of affected proteins.

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Awakenings dramatized the 1918 epidemic of sleeping sickness. Survivors of reated with a drug called dopa. This the disease were left with paralysis and the patients were t drug has 2 forms: one form relieved example of the paralysis and while the other had no effect. This is an D. When working on developing medications, the researcher needs to be aware of subtle variations in molecules c. Form and function are closely related d. All of the above apply e. None of the above apply as one would be a placebo and the other is the trial medication 20) lowing statements concerning hydrogen bonds is FALSE? Which of the foll They are strong attractive forces between hydrogen atoms and negatively charged a. atoms They can form between neighboring molecules. c. They are important forces for tertiary structure of proteins d. They are responsible for many of the unique properties of water 21)A group of molecular biologists is trying to synthesize a new artificial compound to mimic the effects of a known hormone involved in metabolism. They have turned to you for advice. Which of the following compounds is most likely to mimic the effects of the hormone? a. a compound with the same number of carbon atoms as the hormone b. a compound with the same molecular mass (measured in daltons) as the hormone a compound with the same three-dimensional form as part of the hormone d. a compound with the same number of orbital electrons as the hormone e. a compound with the same number of hydrogen and nitrogen atoms as the hormone 22)Scientists and researchers are batting a new group of diseases called prions. As you know already, prion diseases are ones caused by misshapen proteins. In the frantic search for a cure" to these diseases, which the following considerations must be taken into account when developing medications to treat prion diseases? a. Proteins are only a small component of cells and organisms, therefore medications can be made to target proteins in general. b. Proteins secondary structure is dependent on weak forces like hydrogen bonds, Van der Waals forces and disulfide bonds, which could be considered a weak point of attack They have a high degree of specificity in regards to amino acid arrangement and their overall function is dependent upon this factor. Changing the amino acid sequence may result in destruction of the protein. d. Since proteins are hydrophobic, hydrolysis reactions can be used to break the peptide bonds between the carboxyl and R group of affected proteins.

23) Translation is the process of a Turning RNA into DNA Turning RNA into Proteins Turning DNA into RNA d. Turning DNA into Proteins 24)Which of the following is TRUE regarding Van der Waals Interactions (forces)? a. The occur when the atoms are missing neutrons b. Is based on the fact that electrons are not aways symmetrically distributed in a molecule at any given moment They are always found in carbohydrates They are only found in atoms with a full valence shell e. None of the above are true 25)When you dump a glass of water out and a few water droplets r remain behind, what is occurring? the water molecules are strongly attracted to each other the water molecules are attracted to silica in the glass b. Cohesion: c. Adhesion: the water molecules are strongly attracted to each other d. Adhesion: the water molecules are attracted to silica in the glass 26)Ceviche is prepared by marinating fresh raw fish in citrus juice for several hours, until the t becomes opaque and firm, as if cooked. How does citrus juice render the seafood safe to Acidic pH denatures (unfolds and inactivates) proteins by disrupting their hydroger bonds b Citrus juice denatures proteins by disrupting their ionic bonds c. Citrus juice contains enzymes that break apart the lipids in the fish. d. Citrus juice dissolves cell membranes by disrupting hydrophobic interactions 27)During transcription, a. protein is synthesized from RNA in the nucleus b. protein is synthesized from RNA in the cytoplasm c. DNA is synthesized from DNA in the nucleus RNA is synthesized from DNA in the nucleus e. RNA is synthesized from DNA in the cytoplasm. 28) True or False: Humans can digest the Alpha linkages in Cellulose. a. True False 29)True or False: Cellulose and Chitin are both storage disaccharides. a. True False

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