What type of amino acid side chains (\"R\" groups) would you expect to find in t
ID: 87469 • Letter: W
Question
What type of amino acid side chains ("R" groups) would you expect to find in the interior of a protein? A) Polar B) Nonpolar C) Hydrophilic D) Charged E) A and D Which drawing depicts the electron configuration of oxygen (^16_8O)? Which of the following best describes the flow of information in eukaryotic cells? A) DNA rightarrow RNA rightarrow proteins B) RNA rightarrow proteins rightarrow DNA C) proteins rightarrow DNA rightarrow RNA D) RNA rightarrow DNA proteins E) DNA rightarrow proteins RNA What determines if a molecule is polar, nonpolar, or ionic ? A) The number of protons B) The atomic mass C) The differences in the electronegativities of the atoms. D) The ionic charges E) The distance of the electrons from the nucleus Buffers are substances that help resist shifts in pH by A) releasing H+ to a solution when acids are added. B) donating H+ to a solution when bases are added. C) releasing OH- to a solution when acids are added. D) accepting H+ from a solution when acids are added. E) by donating H+ to a solution when bases are added, and accepting H+ when acids are added. What do cohesion, surface tension, and adhesion have in common with reference to water? A) All increase when temperature increases. B) All are produced by ionic bonding. C) All are properties related to hydrogen bonding. D) All have to do with nonpolar covalent bonds. E) C and D only What would be a consequence of changing one amino acid in a protein consisting of 325 amino acids? A) The primary structure of the protein would be changed. B) The tertiary structure of the protein might be changed. C) The biological activity or function of the protein might be altered. D) Only A and C are correct. E) A, B, and C are correct.Explanation / Answer
15)C)HYDROPHILIC
capable of interacting with water through hydrogen bonding; hygroscopic. Hydrophilicmolecules typically have polar groups enabling them to readily absorb or dissolve in water as well as in other polar solvents.
16)C)
17)A) DNA RNA proteins
The flow of genetic information from DNA to protein in eukaryotic cells is called the central dogma of biology.
18)C)The differences in electronegativites of atoms.
The greater the electronegativity difference.
19)E)by donating H+ to a solution when bases are added, and accepting H+when acids are added.
20)C) All are properties related to hydrogen bonding.
21)E) A, B and C are correct
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