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Amino acids have: low solubility in water and small dipole moments. high melting points and large...
12. Amino acids are building blocks of proteins. Which statement best describes the physical properties of...
12. Amino acids are building blocks of proteins. Which statement best describes the physical properties of the following amino acid? A) high melting points and low solubility in water B) large dipole moments and no hydrogen bonding C) high melting points and large dipole moments D) low solubility in water and small dipole moments E) small dipole moments and are hydrophobic
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino...
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino acids none of the above Question 2 (0.5 points) Which two functional groups does an amino acid contain? amine and carboxylic acid carboxylic acid and amide amide and heterocyclic ring heterocyclic ring and amine Question 3 (0.5 points) Do amino acids commonly exist in nature as neutral molecules with all uncharged atoms? Yes No Question 1 (0.5 points) What is a protein? A polymer...
Shape, melting point & solubility (2.5 pts) When melting or boiling a substance (both of which...
Shape, melting point & solubility (2.5 pts) When melting or boiling a substance (both of which are physical changes), which kinds of attractions may be broken? Circle all that apply. hydrogen bonding covalent bonds dipole-dipole London forces vs. If I told you that only one of these molecules is a solid at room temperature, which one is that more likely to be? How can you tell from the structure? Circle the hydrophilic portion of the molecules above and put a...
Constants ! Periodic Part A Explain why amino acids, unlike most amnines and carboxylic acids, are...
Constants ! Periodic Part A Explain why amino acids, unlike most amnines and carboxylic acids, are insoluble in diethyl ether. O An amino acid is insoluble in diethyl ether (a relatively nonpolar solvent), because an amino acid exists as a nonpolar molecule. In contrast, carboxylic acids and amines are more polar because they have a single charge depending on the extent of dissociation in diethyl ether An amino acid is insoluble in diethyl ether (a relatively nonpolar solvent), because an...
Unsaturated fatty acids have lower melting points than saturated fatty acids because A. they have fewer...
Unsaturated fatty acids have lower melting points than saturated fatty acids because A. they have fewer hydrogen atoms B. They have more hydrogen atoms C. their molecules fit closely together D. the cis double bonds give them an irregular shape E. the trans double bonds give them an irregular shape
1. Which of the following amino acids has the most hydrophobic side chain? a). E b)....
1. Which of the following amino acids has the most hydrophobic side chain? a). E b). F c). S d). W e). Y 2. Which type of non covalent interaction would you expect to be present between Cl- and H2O? a). Ionic interactions ("salt links") b). Hydrogen bonds c). Van der Waals interactions d). Ion-dipole interactions For the first question, I have F and W both being hydrophobic chains but am unsure why or how to tell which one would...
9. The greatest gas solubility in water is predicted under what conditions? A) high T, high...
9. The greatest gas solubility in water is predicted under what conditions? A) high T, high partial pressure C) low T, low P 8) high T, low P D) low T, high P Identify the type of interaction between atoms in a nonbonding atomic solid. A) polar bonding B) ionic bonding C) covalent bonding D) hydrogen bonding E) weak dispersion forces 10. 11. Identify the formula for silica. 12. Identify the element with the least band gap A) Lead B)...
show me the work in a clear hand writing so i can understand please Shape, melting point & solubility (2.5 pts)...
show me the work in a clear hand writing so i can understand
please
Shape, melting point & solubility (2.5 pts) When melting or boiling a substance (both of which are physical changes), which kinds of attractions may be broken? Circle all that apply. hydrogen bonding covalent bonds dipole-dipole London forces If I told you that only one of these molecules is a solid at room temperature, which one is that more likely to be? How can you tell from...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with b...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
Trans fatty acids have a higher melting point than their cis isomers because: a. they are...
Trans fatty acids have a higher melting point than their cis isomers because: a. they are bent due to the trans configuration b. they contain more carbon atoms c. they contain fewer carbon atoms d. the trans configuration affects the pKa of the carboxylic acid group, e. or of some other reason?
12. Amino acids are building blocks of proteins. Which statement best describes the physical properties of the following amino acid? A) high melting points and low solubility in water B) large dipole moments and no hydrogen bonding C) high melting points and large dipole moments D) low solubility in water and small dipole moments E) small dipole moments and are hydrophobic
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino acids none of the above Question 2 (0.5 points) Which two functional groups does an amino acid contain? amine and carboxylic acid carboxylic acid and amide amide and heterocyclic ring heterocyclic ring and amine Question 3 (0.5 points) Do amino acids commonly exist in nature as neutral molecules with all uncharged atoms? Yes No Question 1 (0.5 points) What is a protein? A polymer...
Shape, melting point & solubility (2.5 pts) When melting or boiling a substance (both of which are physical changes), which kinds of attractions may be broken? Circle all that apply. hydrogen bonding covalent bonds dipole-dipole London forces vs. If I told you that only one of these molecules is a solid at room temperature, which one is that more likely to be? How can you tell from the structure? Circle the hydrophilic portion of the molecules above and put a...
Constants ! Periodic Part A Explain why amino acids, unlike most amnines and carboxylic acids, are insoluble in diethyl ether. O An amino acid is insoluble in diethyl ether (a relatively nonpolar solvent), because an amino acid exists as a nonpolar molecule. In contrast, carboxylic acids and amines are more polar because they have a single charge depending on the extent of dissociation in diethyl ether An amino acid is insoluble in diethyl ether (a relatively nonpolar solvent), because an...
9. The greatest gas solubility in water is predicted under what conditions? A) high T, high partial pressure C) low T, low P 8) high T, low P D) low T, high P Identify the type of interaction between atoms in a nonbonding atomic solid. A) polar bonding B) ionic bonding C) covalent bonding D) hydrogen bonding E) weak dispersion forces 10. 11. Identify the formula for silica. 12. Identify the element with the least band gap A) Lead B)...
show me the work in a clear hand writing so i can understand
please
Shape, melting point & solubility (2.5 pts) When melting or boiling a substance (both of which are physical changes), which kinds of attractions may be broken? Circle all that apply. hydrogen bonding covalent bonds dipole-dipole London forces If I told you that only one of these molecules is a solid at room temperature, which one is that more likely to be? How can you tell from...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
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